linux/drivers/net/wireless/ray_cs.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*=============================================================================
   3 *
   4 * A  PCMCIA client driver for the Raylink wireless LAN card.
   5 * The starting point for this module was the skeleton.c in the
   6 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
   7 *
   8 * Copyright (c) 1998  Corey Thomas (corey@world.std.com)
   9 *
  10 * Changes:
  11 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
  12 * - reorganize kmallocs in ray_attach, checking all for failure
  13 *   and releasing the previous allocations if one fails
  14 *
  15 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
  16 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
  17 *
  18=============================================================================*/
  19
  20#include <linux/module.h>
  21#include <linux/kernel.h>
  22#include <linux/proc_fs.h>
  23#include <linux/ptrace.h>
  24#include <linux/seq_file.h>
  25#include <linux/string.h>
  26#include <linux/timer.h>
  27#include <linux/init.h>
  28#include <linux/netdevice.h>
  29#include <linux/etherdevice.h>
  30#include <linux/if_arp.h>
  31#include <linux/ioport.h>
  32#include <linux/skbuff.h>
  33#include <linux/ieee80211.h>
  34
  35#include <pcmcia/cistpl.h>
  36#include <pcmcia/cisreg.h>
  37#include <pcmcia/ds.h>
  38
  39#include <linux/wireless.h>
  40#include <net/iw_handler.h>
  41
  42#include <asm/io.h>
  43#include <asm/byteorder.h>
  44#include <linux/uaccess.h>
  45
  46/* Warning : these stuff will slow down the driver... */
  47#define WIRELESS_SPY            /* Enable spying addresses */
  48/* Definitions we need for spy */
  49typedef struct iw_statistics iw_stats;
  50typedef u_char mac_addr[ETH_ALEN];      /* Hardware address */
  51
  52#include "rayctl.h"
  53#include "ray_cs.h"
  54
  55
  56/** Prototypes based on PCMCIA skeleton driver *******************************/
  57static int ray_config(struct pcmcia_device *link);
  58static void ray_release(struct pcmcia_device *link);
  59static void ray_detach(struct pcmcia_device *p_dev);
  60
  61/***** Prototypes indicated by device structure ******************************/
  62static int ray_dev_close(struct net_device *dev);
  63static int ray_dev_config(struct net_device *dev, struct ifmap *map);
  64static struct net_device_stats *ray_get_stats(struct net_device *dev);
  65static int ray_dev_init(struct net_device *dev);
  66
  67static int ray_open(struct net_device *dev);
  68static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
  69                                            struct net_device *dev);
  70static void set_multicast_list(struct net_device *dev);
  71static void ray_update_multi_list(struct net_device *dev, int all);
  72static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
  73                           unsigned char *data, int len);
  74static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
  75                             UCHAR msg_type, unsigned char *data);
  76static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
  77static iw_stats *ray_get_wireless_stats(struct net_device *dev);
  78static const struct iw_handler_def ray_handler_def;
  79
  80/***** Prototypes for raylink functions **************************************/
  81static void authenticate(ray_dev_t *local);
  82static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
  83static void authenticate_timeout(struct timer_list *t);
  84static int get_free_ccs(ray_dev_t *local);
  85static int get_free_tx_ccs(ray_dev_t *local);
  86static void init_startup_params(ray_dev_t *local);
  87static int parse_addr(char *in_str, UCHAR *out);
  88static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
  89static int ray_init(struct net_device *dev);
  90static int interrupt_ecf(ray_dev_t *local, int ccs);
  91static void ray_reset(struct net_device *dev);
  92static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
  93static void verify_dl_startup(struct timer_list *t);
  94
  95/* Prototypes for interrpt time functions **********************************/
  96static irqreturn_t ray_interrupt(int reg, void *dev_id);
  97static void clear_interrupt(ray_dev_t *local);
  98static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
  99                              unsigned int pkt_addr, int rx_len);
 100static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
 101static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
 102static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
 103static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
 104                            unsigned int pkt_addr, int rx_len);
 105static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
 106                    unsigned int pkt_addr, int rx_len);
 107static void associate(ray_dev_t *local);
 108
 109/* Card command functions */
 110static int dl_startup_params(struct net_device *dev);
 111static void join_net(struct timer_list *t);
 112static void start_net(struct timer_list *t);
 113
 114/*===========================================================================*/
 115/* Parameters that can be set with 'insmod' */
 116
 117/* ADHOC=0, Infrastructure=1 */
 118static int net_type = ADHOC;
 119
 120/* Hop dwell time in Kus (1024 us units defined by 802.11) */
 121static int hop_dwell = 128;
 122
 123/* Beacon period in Kus */
 124static int beacon_period = 256;
 125
 126/* power save mode (0 = off, 1 = save power) */
 127static int psm;
 128
 129/* String for network's Extended Service Set ID. 32 Characters max */
 130static char *essid;
 131
 132/* Default to encapsulation unless translation requested */
 133static bool translate = true;
 134
 135static int country = USA;
 136
 137static int sniffer;
 138
 139static int bc;
 140
 141/* 48 bit physical card address if overriding card's real physical
 142 * address is required.  Since IEEE 802.11 addresses are 48 bits
 143 * like ethernet, an int can't be used, so a string is used. To
 144 * allow use of addresses starting with a decimal digit, the first
 145 * character must be a letter and will be ignored. This letter is
 146 * followed by up to 12 hex digits which are the address.  If less
 147 * than 12 digits are used, the address will be left filled with 0's.
 148 * Note that bit 0 of the first byte is the broadcast bit, and evil
 149 * things will happen if it is not 0 in a card address.
 150 */
 151static char *phy_addr = NULL;
 152
 153static unsigned int ray_mem_speed = 500;
 154
 155/* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
 156static struct pcmcia_device *this_device = NULL;
 157
 158MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
 159MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
 160MODULE_LICENSE("GPL");
 161
 162module_param(net_type, int, 0);
 163module_param(hop_dwell, int, 0);
 164module_param(beacon_period, int, 0);
 165module_param(psm, int, 0);
 166module_param(essid, charp, 0);
 167module_param(translate, bool, 0);
 168module_param(country, int, 0);
 169module_param(sniffer, int, 0);
 170module_param(bc, int, 0);
 171module_param(phy_addr, charp, 0);
 172module_param(ray_mem_speed, int, 0);
 173
 174static const UCHAR b5_default_startup_parms[] = {
 175        0, 0,                   /* Adhoc station */
 176        'L', 'I', 'N', 'U', 'X', 0, 0, 0,       /* 32 char ESSID */
 177        0, 0, 0, 0, 0, 0, 0, 0,
 178        0, 0, 0, 0, 0, 0, 0, 0,
 179        0, 0, 0, 0, 0, 0, 0, 0,
 180        1, 0,                   /* Active scan, CA Mode */
 181        0, 0, 0, 0, 0, 0,       /* No default MAC addr  */
 182        0x7f, 0xff,             /* Frag threshold */
 183        0x00, 0x80,             /* Hop time 128 Kus */
 184        0x01, 0x00,             /* Beacon period 256 Kus */
 185        0x01, 0x07, 0xa3,       /* DTIM, retries, ack timeout */
 186        0x1d, 0x82, 0x4e,       /* SIFS, DIFS, PIFS */
 187        0x7f, 0xff,             /* RTS threshold */
 188        0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
 189        0x05,                   /* assoc resp timeout thresh */
 190        0x08, 0x02, 0x08,       /* adhoc, infra, super cycle max */
 191        0,                      /* Promiscuous mode */
 192        0x0c, 0x0bd,            /* Unique word */
 193        0x32,                   /* Slot time */
 194        0xff, 0xff,             /* roam-low snr, low snr count */
 195        0x05, 0xff,             /* Infra, adhoc missed bcn thresh */
 196        0x01, 0x0b, 0x4f,       /* USA, hop pattern, hop pat length */
 197/* b4 - b5 differences start here */
 198        0x00, 0x3f,             /* CW max */
 199        0x00, 0x0f,             /* CW min */
 200        0x04, 0x08,             /* Noise gain, limit offset */
 201        0x28, 0x28,             /* det rssi, med busy offsets */
 202        7,                      /* det sync thresh */
 203        0, 2, 2,                /* test mode, min, max */
 204        0,                      /* allow broadcast SSID probe resp */
 205        0, 0,                   /* privacy must start, can join */
 206        2, 0, 0, 0, 0, 0, 0, 0  /* basic rate set */
 207};
 208
 209static const UCHAR b4_default_startup_parms[] = {
 210        0, 0,                   /* Adhoc station */
 211        'L', 'I', 'N', 'U', 'X', 0, 0, 0,       /* 32 char ESSID */
 212        0, 0, 0, 0, 0, 0, 0, 0,
 213        0, 0, 0, 0, 0, 0, 0, 0,
 214        0, 0, 0, 0, 0, 0, 0, 0,
 215        1, 0,                   /* Active scan, CA Mode */
 216        0, 0, 0, 0, 0, 0,       /* No default MAC addr  */
 217        0x7f, 0xff,             /* Frag threshold */
 218        0x02, 0x00,             /* Hop time */
 219        0x00, 0x01,             /* Beacon period */
 220        0x01, 0x07, 0xa3,       /* DTIM, retries, ack timeout */
 221        0x1d, 0x82, 0xce,       /* SIFS, DIFS, PIFS */
 222        0x7f, 0xff,             /* RTS threshold */
 223        0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
 224        0x05,                   /* assoc resp timeout thresh */
 225        0x04, 0x02, 0x4,        /* adhoc, infra, super cycle max */
 226        0,                      /* Promiscuous mode */
 227        0x0c, 0x0bd,            /* Unique word */
 228        0x4e,                   /* Slot time (TBD seems wrong) */
 229        0xff, 0xff,             /* roam-low snr, low snr count */
 230        0x05, 0xff,             /* Infra, adhoc missed bcn thresh */
 231        0x01, 0x0b, 0x4e,       /* USA, hop pattern, hop pat length */
 232/* b4 - b5 differences start here */
 233        0x3f, 0x0f,             /* CW max, min */
 234        0x04, 0x08,             /* Noise gain, limit offset */
 235        0x28, 0x28,             /* det rssi, med busy offsets */
 236        7,                      /* det sync thresh */
 237        0, 2, 2,                /* test mode, min, max */
 238        0,                      /* rx/tx delay */
 239        0, 0, 0, 0, 0, 0,       /* current BSS id */
 240        0                       /* hop set */
 241};
 242
 243/*===========================================================================*/
 244static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
 245
 246static const char hop_pattern_length[] = { 1,
 247        USA_HOP_MOD, EUROPE_HOP_MOD,
 248        JAPAN_HOP_MOD, KOREA_HOP_MOD,
 249        SPAIN_HOP_MOD, FRANCE_HOP_MOD,
 250        ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
 251        JAPAN_TEST_HOP_MOD
 252};
 253
 254static const char rcsid[] =
 255    "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
 256
 257static const struct net_device_ops ray_netdev_ops = {
 258        .ndo_init               = ray_dev_init,
 259        .ndo_open               = ray_open,
 260        .ndo_stop               = ray_dev_close,
 261        .ndo_start_xmit         = ray_dev_start_xmit,
 262        .ndo_set_config         = ray_dev_config,
 263        .ndo_get_stats          = ray_get_stats,
 264        .ndo_set_rx_mode        = set_multicast_list,
 265        .ndo_set_mac_address    = eth_mac_addr,
 266        .ndo_validate_addr      = eth_validate_addr,
 267};
 268
 269static int ray_probe(struct pcmcia_device *p_dev)
 270{
 271        ray_dev_t *local;
 272        struct net_device *dev;
 273
 274        dev_dbg(&p_dev->dev, "ray_attach()\n");
 275
 276        /* Allocate space for private device-specific data */
 277        dev = alloc_etherdev(sizeof(ray_dev_t));
 278        if (!dev)
 279                goto fail_alloc_dev;
 280
 281        local = netdev_priv(dev);
 282        local->finder = p_dev;
 283
 284        /* The io structure describes IO port mapping. None used here */
 285        p_dev->resource[0]->end = 0;
 286        p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
 287
 288        /* General socket configuration */
 289        p_dev->config_flags |= CONF_ENABLE_IRQ;
 290        p_dev->config_index = 1;
 291
 292        p_dev->priv = dev;
 293
 294        local->finder = p_dev;
 295        local->card_status = CARD_INSERTED;
 296        local->authentication_state = UNAUTHENTICATED;
 297        local->num_multi = 0;
 298        dev_dbg(&p_dev->dev, "ray_attach p_dev = %p,  dev = %p,  local = %p, intr = %p\n",
 299              p_dev, dev, local, &ray_interrupt);
 300
 301        /* Raylink entries in the device structure */
 302        dev->netdev_ops = &ray_netdev_ops;
 303        dev->wireless_handlers = &ray_handler_def;
 304#ifdef WIRELESS_SPY
 305        local->wireless_data.spy_data = &local->spy_data;
 306        dev->wireless_data = &local->wireless_data;
 307#endif /* WIRELESS_SPY */
 308
 309
 310        dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
 311        netif_stop_queue(dev);
 312
 313        timer_setup(&local->timer, NULL, 0);
 314
 315        this_device = p_dev;
 316        return ray_config(p_dev);
 317
 318fail_alloc_dev:
 319        return -ENOMEM;
 320} /* ray_attach */
 321
 322static void ray_detach(struct pcmcia_device *link)
 323{
 324        struct net_device *dev;
 325        ray_dev_t *local;
 326
 327        dev_dbg(&link->dev, "ray_detach\n");
 328
 329        this_device = NULL;
 330        dev = link->priv;
 331
 332        ray_release(link);
 333
 334        local = netdev_priv(dev);
 335        del_timer_sync(&local->timer);
 336
 337        if (link->priv) {
 338                unregister_netdev(dev);
 339                free_netdev(dev);
 340        }
 341        dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
 342} /* ray_detach */
 343
 344#define MAX_TUPLE_SIZE 128
 345static int ray_config(struct pcmcia_device *link)
 346{
 347        int ret = 0;
 348        int i;
 349        struct net_device *dev = (struct net_device *)link->priv;
 350        ray_dev_t *local = netdev_priv(dev);
 351
 352        dev_dbg(&link->dev, "ray_config\n");
 353
 354        /* Determine card type and firmware version */
 355        printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
 356               link->prod_id[0] ? link->prod_id[0] : " ",
 357               link->prod_id[1] ? link->prod_id[1] : " ",
 358               link->prod_id[2] ? link->prod_id[2] : " ",
 359               link->prod_id[3] ? link->prod_id[3] : " ");
 360
 361        /* Now allocate an interrupt line.  Note that this does not
 362           actually assign a handler to the interrupt.
 363         */
 364        ret = pcmcia_request_irq(link, ray_interrupt);
 365        if (ret)
 366                goto failed;
 367        dev->irq = link->irq;
 368
 369        ret = pcmcia_enable_device(link);
 370        if (ret)
 371                goto failed;
 372
 373/*** Set up 32k window for shared memory (transmit and control) ************/
 374        link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
 375        link->resource[2]->start = 0;
 376        link->resource[2]->end = 0x8000;
 377        ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
 378        if (ret)
 379                goto failed;
 380        ret = pcmcia_map_mem_page(link, link->resource[2], 0);
 381        if (ret)
 382                goto failed;
 383        local->sram = ioremap(link->resource[2]->start,
 384                        resource_size(link->resource[2]));
 385
 386/*** Set up 16k window for shared memory (receive buffer) ***************/
 387        link->resource[3]->flags |=
 388            WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
 389        link->resource[3]->start = 0;
 390        link->resource[3]->end = 0x4000;
 391        ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
 392        if (ret)
 393                goto failed;
 394        ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
 395        if (ret)
 396                goto failed;
 397        local->rmem = ioremap(link->resource[3]->start,
 398                        resource_size(link->resource[3]));
 399
 400/*** Set up window for attribute memory ***********************************/
 401        link->resource[4]->flags |=
 402            WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
 403        link->resource[4]->start = 0;
 404        link->resource[4]->end = 0x1000;
 405        ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
 406        if (ret)
 407                goto failed;
 408        ret = pcmcia_map_mem_page(link, link->resource[4], 0);
 409        if (ret)
 410                goto failed;
 411        local->amem = ioremap(link->resource[4]->start,
 412                        resource_size(link->resource[4]));
 413
 414        dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
 415        dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
 416        dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
 417        if (ray_init(dev) < 0) {
 418                ray_release(link);
 419                return -ENODEV;
 420        }
 421
 422        SET_NETDEV_DEV(dev, &link->dev);
 423        i = register_netdev(dev);
 424        if (i != 0) {
 425                printk("ray_config register_netdev() failed\n");
 426                ray_release(link);
 427                return i;
 428        }
 429
 430        printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
 431               dev->name, dev->irq, dev->dev_addr);
 432
 433        return 0;
 434
 435failed:
 436        ray_release(link);
 437        return -ENODEV;
 438} /* ray_config */
 439
 440static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
 441{
 442        return dev->sram + CCS_BASE;
 443}
 444
 445static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
 446{
 447        /*
 448         * This looks nonsensical, since there is a separate
 449         * RCS_BASE. But the difference between a "struct rcs"
 450         * and a "struct ccs" ends up being in the _index_ off
 451         * the base, so the base pointer is the same for both
 452         * ccs/rcs.
 453         */
 454        return dev->sram + CCS_BASE;
 455}
 456
 457/*===========================================================================*/
 458static int ray_init(struct net_device *dev)
 459{
 460        int i;
 461        struct ccs __iomem *pccs;
 462        ray_dev_t *local = netdev_priv(dev);
 463        struct pcmcia_device *link = local->finder;
 464        dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
 465        if (!(pcmcia_dev_present(link))) {
 466                dev_dbg(&link->dev, "ray_init - device not present\n");
 467                return -1;
 468        }
 469
 470        local->net_type = net_type;
 471        local->sta_type = TYPE_STA;
 472
 473        /* Copy the startup results to local memory */
 474        memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
 475                      sizeof(struct startup_res_6));
 476
 477        /* Check Power up test status and get mac address from card */
 478        if (local->startup_res.startup_word != 0x80) {
 479                printk(KERN_INFO "ray_init ERROR card status = %2x\n",
 480                       local->startup_res.startup_word);
 481                local->card_status = CARD_INIT_ERROR;
 482                return -1;
 483        }
 484
 485        local->fw_ver = local->startup_res.firmware_version[0];
 486        local->fw_bld = local->startup_res.firmware_version[1];
 487        local->fw_var = local->startup_res.firmware_version[2];
 488        dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
 489              local->fw_bld);
 490
 491        local->tib_length = 0x20;
 492        if ((local->fw_ver == 5) && (local->fw_bld >= 30))
 493                local->tib_length = local->startup_res.tib_length;
 494        dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
 495        /* Initialize CCS's to buffer free state */
 496        pccs = ccs_base(local);
 497        for (i = 0; i < NUMBER_OF_CCS; i++) {
 498                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
 499        }
 500        init_startup_params(local);
 501
 502        /* copy mac address to startup parameters */
 503        if (!parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
 504                memcpy(&local->sparm.b4.a_mac_addr,
 505                       &local->startup_res.station_addr, ADDRLEN);
 506        }
 507
 508        clear_interrupt(local); /* Clear any interrupt from the card */
 509        local->card_status = CARD_AWAITING_PARAM;
 510        dev_dbg(&link->dev, "ray_init ending\n");
 511        return 0;
 512} /* ray_init */
 513
 514/*===========================================================================*/
 515/* Download startup parameters to the card and command it to read them       */
 516static int dl_startup_params(struct net_device *dev)
 517{
 518        int ccsindex;
 519        ray_dev_t *local = netdev_priv(dev);
 520        struct ccs __iomem *pccs;
 521        struct pcmcia_device *link = local->finder;
 522
 523        dev_dbg(&link->dev, "dl_startup_params entered\n");
 524        if (!(pcmcia_dev_present(link))) {
 525                dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
 526                return -1;
 527        }
 528
 529        /* Copy parameters to host to ECF area */
 530        if (local->fw_ver == 0x55)
 531                memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
 532                            sizeof(struct b4_startup_params));
 533        else
 534                memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
 535                            sizeof(struct b5_startup_params));
 536
 537        /* Fill in the CCS fields for the ECF */
 538        if ((ccsindex = get_free_ccs(local)) < 0)
 539                return -1;
 540        local->dl_param_ccs = ccsindex;
 541        pccs = ccs_base(local) + ccsindex;
 542        writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
 543        dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
 544              local->dl_param_ccs);
 545        /* Interrupt the firmware to process the command */
 546        if (interrupt_ecf(local, ccsindex)) {
 547                printk(KERN_INFO "ray dl_startup_params failed - "
 548                       "ECF not ready for intr\n");
 549                local->card_status = CARD_DL_PARAM_ERROR;
 550                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
 551                return -2;
 552        }
 553        local->card_status = CARD_DL_PARAM;
 554        /* Start kernel timer to wait for dl startup to complete. */
 555        local->timer.expires = jiffies + HZ / 2;
 556        local->timer.function = verify_dl_startup;
 557        add_timer(&local->timer);
 558        dev_dbg(&link->dev,
 559              "ray_cs dl_startup_params started timer for verify_dl_startup\n");
 560        return 0;
 561} /* dl_startup_params */
 562
 563/*===========================================================================*/
 564static void init_startup_params(ray_dev_t *local)
 565{
 566        int i;
 567
 568        if (country > JAPAN_TEST)
 569                country = USA;
 570        else if (country < USA)
 571                country = USA;
 572        /* structure for hop time and beacon period is defined here using
 573         * New 802.11D6.1 format.  Card firmware is still using old format
 574         * until version 6.
 575         *    Before                    After
 576         *    a_hop_time ms byte        a_hop_time ms byte
 577         *    a_hop_time 2s byte        a_hop_time ls byte
 578         *    a_hop_time ls byte        a_beacon_period ms byte
 579         *    a_beacon_period           a_beacon_period ls byte
 580         *
 581         *    a_hop_time = uS           a_hop_time = KuS
 582         *    a_beacon_period = hops    a_beacon_period = KuS
 583         *//* 64ms = 010000 */
 584        if (local->fw_ver == 0x55) {
 585                memcpy(&local->sparm.b4, b4_default_startup_parms,
 586                       sizeof(struct b4_startup_params));
 587                /* Translate sane kus input values to old build 4/5 format */
 588                /* i = hop time in uS truncated to 3 bytes */
 589                i = (hop_dwell * 1024) & 0xffffff;
 590                local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
 591                local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
 592                local->sparm.b4.a_beacon_period[0] = 0;
 593                local->sparm.b4.a_beacon_period[1] =
 594                    ((beacon_period / hop_dwell) - 1) & 0xff;
 595                local->sparm.b4.a_curr_country_code = country;
 596                local->sparm.b4.a_hop_pattern_length =
 597                    hop_pattern_length[(int)country] - 1;
 598                if (bc) {
 599                        local->sparm.b4.a_ack_timeout = 0x50;
 600                        local->sparm.b4.a_sifs = 0x3f;
 601                }
 602        } else { /* Version 5 uses real kus values */
 603                memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
 604                       sizeof(struct b5_startup_params));
 605
 606                local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
 607                local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
 608                local->sparm.b5.a_beacon_period[0] =
 609                    (beacon_period >> 8) & 0xff;
 610                local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
 611                if (psm)
 612                        local->sparm.b5.a_power_mgt_state = 1;
 613                local->sparm.b5.a_curr_country_code = country;
 614                local->sparm.b5.a_hop_pattern_length =
 615                    hop_pattern_length[(int)country];
 616        }
 617
 618        local->sparm.b4.a_network_type = net_type & 0x01;
 619        local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
 620
 621        if (essid != NULL)
 622                strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
 623} /* init_startup_params */
 624
 625/*===========================================================================*/
 626static void verify_dl_startup(struct timer_list *t)
 627{
 628        ray_dev_t *local = from_timer(local, t, timer);
 629        struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
 630        UCHAR status;
 631        struct pcmcia_device *link = local->finder;
 632
 633        if (!(pcmcia_dev_present(link))) {
 634                dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
 635                return;
 636        }
 637#if 0
 638        {
 639                int i;
 640                printk(KERN_DEBUG
 641                       "verify_dl_startup parameters sent via ccs %d:\n",
 642                       local->dl_param_ccs);
 643                for (i = 0; i < sizeof(struct b5_startup_params); i++) {
 644                        printk(" %2x",
 645                               (unsigned int)readb(local->sram +
 646                                                   HOST_TO_ECF_BASE + i));
 647                }
 648                printk("\n");
 649        }
 650#endif
 651
 652        status = readb(&pccs->buffer_status);
 653        if (status != CCS_BUFFER_FREE) {
 654                printk(KERN_INFO
 655                       "Download startup params failed.  Status = %d\n",
 656                       status);
 657                local->card_status = CARD_DL_PARAM_ERROR;
 658                return;
 659        }
 660        if (local->sparm.b4.a_network_type == ADHOC)
 661                start_net(&local->timer);
 662        else
 663                join_net(&local->timer);
 664} /* end verify_dl_startup */
 665
 666/*===========================================================================*/
 667/* Command card to start a network */
 668static void start_net(struct timer_list *t)
 669{
 670        ray_dev_t *local = from_timer(local, t, timer);
 671        struct ccs __iomem *pccs;
 672        int ccsindex;
 673        struct pcmcia_device *link = local->finder;
 674        if (!(pcmcia_dev_present(link))) {
 675                dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
 676                return;
 677        }
 678        /* Fill in the CCS fields for the ECF */
 679        if ((ccsindex = get_free_ccs(local)) < 0)
 680                return;
 681        pccs = ccs_base(local) + ccsindex;
 682        writeb(CCS_START_NETWORK, &pccs->cmd);
 683        writeb(0, &pccs->var.start_network.update_param);
 684        /* Interrupt the firmware to process the command */
 685        if (interrupt_ecf(local, ccsindex)) {
 686                dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
 687                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
 688                return;
 689        }
 690        local->card_status = CARD_DOING_ACQ;
 691} /* end start_net */
 692
 693/*===========================================================================*/
 694/* Command card to join a network */
 695static void join_net(struct timer_list *t)
 696{
 697        ray_dev_t *local = from_timer(local, t, timer);
 698
 699        struct ccs __iomem *pccs;
 700        int ccsindex;
 701        struct pcmcia_device *link = local->finder;
 702
 703        if (!(pcmcia_dev_present(link))) {
 704                dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
 705                return;
 706        }
 707        /* Fill in the CCS fields for the ECF */
 708        if ((ccsindex = get_free_ccs(local)) < 0)
 709                return;
 710        pccs = ccs_base(local) + ccsindex;
 711        writeb(CCS_JOIN_NETWORK, &pccs->cmd);
 712        writeb(0, &pccs->var.join_network.update_param);
 713        writeb(0, &pccs->var.join_network.net_initiated);
 714        /* Interrupt the firmware to process the command */
 715        if (interrupt_ecf(local, ccsindex)) {
 716                dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
 717                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
 718                return;
 719        }
 720        local->card_status = CARD_DOING_ACQ;
 721}
 722
 723
 724static void ray_release(struct pcmcia_device *link)
 725{
 726        struct net_device *dev = link->priv;
 727        ray_dev_t *local = netdev_priv(dev);
 728
 729        dev_dbg(&link->dev, "ray_release\n");
 730
 731        del_timer(&local->timer);
 732
 733        iounmap(local->sram);
 734        iounmap(local->rmem);
 735        iounmap(local->amem);
 736        pcmcia_disable_device(link);
 737
 738        dev_dbg(&link->dev, "ray_release ending\n");
 739}
 740
 741static int ray_suspend(struct pcmcia_device *link)
 742{
 743        struct net_device *dev = link->priv;
 744
 745        if (link->open)
 746                netif_device_detach(dev);
 747
 748        return 0;
 749}
 750
 751static int ray_resume(struct pcmcia_device *link)
 752{
 753        struct net_device *dev = link->priv;
 754
 755        if (link->open) {
 756                ray_reset(dev);
 757                netif_device_attach(dev);
 758        }
 759
 760        return 0;
 761}
 762
 763/*===========================================================================*/
 764static int ray_dev_init(struct net_device *dev)
 765{
 766#ifdef RAY_IMMEDIATE_INIT
 767        int i;
 768#endif /* RAY_IMMEDIATE_INIT */
 769        ray_dev_t *local = netdev_priv(dev);
 770        struct pcmcia_device *link = local->finder;
 771
 772        dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
 773        if (!(pcmcia_dev_present(link))) {
 774                dev_dbg(&link->dev, "ray_dev_init - device not present\n");
 775                return -1;
 776        }
 777#ifdef RAY_IMMEDIATE_INIT
 778        /* Download startup parameters */
 779        if ((i = dl_startup_params(dev)) < 0) {
 780                printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
 781                       "returns 0x%x\n", i);
 782                return -1;
 783        }
 784#else /* RAY_IMMEDIATE_INIT */
 785        /* Postpone the card init so that we can still configure the card,
 786         * for example using the Wireless Extensions. The init will happen
 787         * in ray_open() - Jean II */
 788        dev_dbg(&link->dev,
 789              "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
 790              local->card_status);
 791#endif /* RAY_IMMEDIATE_INIT */
 792
 793        /* copy mac and broadcast addresses to linux device */
 794        memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
 795        eth_broadcast_addr(dev->broadcast);
 796
 797        dev_dbg(&link->dev, "ray_dev_init ending\n");
 798        return 0;
 799}
 800
 801/*===========================================================================*/
 802static int ray_dev_config(struct net_device *dev, struct ifmap *map)
 803{
 804        ray_dev_t *local = netdev_priv(dev);
 805        struct pcmcia_device *link = local->finder;
 806        /* Dummy routine to satisfy device structure */
 807        dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
 808        if (!(pcmcia_dev_present(link))) {
 809                dev_dbg(&link->dev, "ray_dev_config - device not present\n");
 810                return -1;
 811        }
 812
 813        return 0;
 814}
 815
 816/*===========================================================================*/
 817static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
 818                                            struct net_device *dev)
 819{
 820        ray_dev_t *local = netdev_priv(dev);
 821        struct pcmcia_device *link = local->finder;
 822        short length = skb->len;
 823
 824        if (!pcmcia_dev_present(link)) {
 825                dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
 826                dev_kfree_skb(skb);
 827                return NETDEV_TX_OK;
 828        }
 829
 830        dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
 831        if (local->authentication_state == NEED_TO_AUTH) {
 832                dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
 833                if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
 834                        local->authentication_state = AUTHENTICATED;
 835                        netif_stop_queue(dev);
 836                        return NETDEV_TX_BUSY;
 837                }
 838        }
 839
 840        if (length < ETH_ZLEN) {
 841                if (skb_padto(skb, ETH_ZLEN))
 842                        return NETDEV_TX_OK;
 843                length = ETH_ZLEN;
 844        }
 845        switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
 846        case XMIT_NO_CCS:
 847        case XMIT_NEED_AUTH:
 848                netif_stop_queue(dev);
 849                return NETDEV_TX_BUSY;
 850        case XMIT_NO_INTR:
 851        case XMIT_MSG_BAD:
 852        case XMIT_OK:
 853        default:
 854                dev_kfree_skb(skb);
 855        }
 856
 857        return NETDEV_TX_OK;
 858} /* ray_dev_start_xmit */
 859
 860/*===========================================================================*/
 861static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
 862                       UCHAR msg_type)
 863{
 864        ray_dev_t *local = netdev_priv(dev);
 865        struct ccs __iomem *pccs;
 866        int ccsindex;
 867        int offset;
 868        struct tx_msg __iomem *ptx;     /* Address of xmit buffer in PC space */
 869        short int addr;         /* Address of xmit buffer in card space */
 870
 871        pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
 872        if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
 873                printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
 874                       len);
 875                return XMIT_MSG_BAD;
 876        }
 877        switch (ccsindex = get_free_tx_ccs(local)) {
 878        case ECCSBUSY:
 879                pr_debug("ray_hw_xmit tx_ccs table busy\n");
 880                /* fall through */
 881        case ECCSFULL:
 882                pr_debug("ray_hw_xmit No free tx ccs\n");
 883                /* fall through */
 884        case ECARDGONE:
 885                netif_stop_queue(dev);
 886                return XMIT_NO_CCS;
 887        default:
 888                break;
 889        }
 890        addr = TX_BUF_BASE + (ccsindex << 11);
 891
 892        if (msg_type == DATA_TYPE) {
 893                local->stats.tx_bytes += len;
 894                local->stats.tx_packets++;
 895        }
 896
 897        ptx = local->sram + addr;
 898
 899        ray_build_header(local, ptx, msg_type, data);
 900        if (translate) {
 901                offset = translate_frame(local, ptx, data, len);
 902        } else { /* Encapsulate frame */
 903                /* TBD TIB length will move address of ptx->var */
 904                memcpy_toio(&ptx->var, data, len);
 905                offset = 0;
 906        }
 907
 908        /* fill in the CCS */
 909        pccs = ccs_base(local) + ccsindex;
 910        len += TX_HEADER_LENGTH + offset;
 911        writeb(CCS_TX_REQUEST, &pccs->cmd);
 912        writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
 913        writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
 914        writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
 915        writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
 916/* TBD still need psm_cam? */
 917        writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
 918        writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
 919        writeb(0, &pccs->var.tx_request.antenna);
 920        pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
 921              local->net_default_tx_rate);
 922
 923        /* Interrupt the firmware to process the command */
 924        if (interrupt_ecf(local, ccsindex)) {
 925                pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
 926/* TBD very inefficient to copy packet to buffer, and then not
 927   send it, but the alternative is to queue the messages and that
 928   won't be done for a while.  Maybe set tbusy until a CCS is free?
 929*/
 930                writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
 931                return XMIT_NO_INTR;
 932        }
 933        return XMIT_OK;
 934} /* end ray_hw_xmit */
 935
 936/*===========================================================================*/
 937static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
 938                           unsigned char *data, int len)
 939{
 940        __be16 proto = ((struct ethhdr *)data)->h_proto;
 941        if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
 942                pr_debug("ray_cs translate_frame DIX II\n");
 943                /* Copy LLC header to card buffer */
 944                memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
 945                memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
 946                            (UCHAR *) &proto, 2);
 947                if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
 948                        /* This is the selective translation table, only 2 entries */
 949                        writeb(0xf8,
 950                               &((struct snaphdr_t __iomem *)ptx->var)->org[2]);
 951                }
 952                /* Copy body of ethernet packet without ethernet header */
 953                memcpy_toio((void __iomem *)&ptx->var +
 954                            sizeof(struct snaphdr_t), data + ETH_HLEN,
 955                            len - ETH_HLEN);
 956                return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
 957        } else { /* already  802 type, and proto is length */
 958                pr_debug("ray_cs translate_frame 802\n");
 959                if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
 960                        pr_debug("ray_cs translate_frame evil IPX\n");
 961                        memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
 962                        return 0 - ETH_HLEN;
 963                }
 964                memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
 965                return 0 - ETH_HLEN;
 966        }
 967        /* TBD do other frame types */
 968} /* end translate_frame */
 969
 970/*===========================================================================*/
 971static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
 972                             UCHAR msg_type, unsigned char *data)
 973{
 974        writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
 975/*** IEEE 802.11 Address field assignments *************
 976                TODS    FROMDS  addr_1          addr_2          addr_3  addr_4
 977Adhoc           0       0       dest            src (terminal)  BSSID   N/A
 978AP to Terminal  0       1       dest            AP(BSSID)       source  N/A
 979Terminal to AP  1       0       AP(BSSID)       src (terminal)  dest    N/A
 980AP to AP        1       1       dest AP         src AP          dest    source
 981*******************************************************/
 982        if (local->net_type == ADHOC) {
 983                writeb(0, &ptx->mac.frame_ctl_2);
 984                memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
 985                            2 * ADDRLEN);
 986                memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
 987        } else { /* infrastructure */
 988
 989                if (local->sparm.b4.a_acting_as_ap_status) {
 990                        writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
 991                        memcpy_toio(ptx->mac.addr_1,
 992                                    ((struct ethhdr *)data)->h_dest, ADDRLEN);
 993                        memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
 994                        memcpy_toio(ptx->mac.addr_3,
 995                                    ((struct ethhdr *)data)->h_source, ADDRLEN);
 996                } else { /* Terminal */
 997
 998                        writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
 999                        memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1000                        memcpy_toio(ptx->mac.addr_2,
1001                                    ((struct ethhdr *)data)->h_source, ADDRLEN);
1002                        memcpy_toio(ptx->mac.addr_3,
1003                                    ((struct ethhdr *)data)->h_dest, ADDRLEN);
1004                }
1005        }
1006} /* end encapsulate_frame */
1007
1008/*====================================================================*/
1009
1010/*------------------------------------------------------------------*/
1011/*
1012 * Wireless Handler : get protocol name
1013 */
1014static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1015                        union iwreq_data *wrqu, char *extra)
1016{
1017        strcpy(wrqu->name, "IEEE 802.11-FH");
1018        return 0;
1019}
1020
1021/*------------------------------------------------------------------*/
1022/*
1023 * Wireless Handler : set frequency
1024 */
1025static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1026                        union iwreq_data *wrqu, char *extra)
1027{
1028        ray_dev_t *local = netdev_priv(dev);
1029        int err = -EINPROGRESS; /* Call commit handler */
1030
1031        /* Reject if card is already initialised */
1032        if (local->card_status != CARD_AWAITING_PARAM)
1033                return -EBUSY;
1034
1035        /* Setting by channel number */
1036        if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1037                err = -EOPNOTSUPP;
1038        else
1039                local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1040
1041        return err;
1042}
1043
1044/*------------------------------------------------------------------*/
1045/*
1046 * Wireless Handler : get frequency
1047 */
1048static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1049                        union iwreq_data *wrqu, char *extra)
1050{
1051        ray_dev_t *local = netdev_priv(dev);
1052
1053        wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1054        wrqu->freq.e = 0;
1055        return 0;
1056}
1057
1058/*------------------------------------------------------------------*/
1059/*
1060 * Wireless Handler : set ESSID
1061 */
1062static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1063                         union iwreq_data *wrqu, char *extra)
1064{
1065        ray_dev_t *local = netdev_priv(dev);
1066
1067        /* Reject if card is already initialised */
1068        if (local->card_status != CARD_AWAITING_PARAM)
1069                return -EBUSY;
1070
1071        /* Check if we asked for `any' */
1072        if (wrqu->essid.flags == 0)
1073                /* Corey : can you do that ? */
1074                return -EOPNOTSUPP;
1075
1076        /* Check the size of the string */
1077        if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1078                return -E2BIG;
1079
1080        /* Set the ESSID in the card */
1081        memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1082        memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1083
1084        return -EINPROGRESS;    /* Call commit handler */
1085}
1086
1087/*------------------------------------------------------------------*/
1088/*
1089 * Wireless Handler : get ESSID
1090 */
1091static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1092                         union iwreq_data *wrqu, char *extra)
1093{
1094        ray_dev_t *local = netdev_priv(dev);
1095        UCHAR tmp[IW_ESSID_MAX_SIZE + 1];
1096
1097        /* Get the essid that was set */
1098        memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1099        memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1100        tmp[IW_ESSID_MAX_SIZE] = '\0';
1101
1102        /* Push it out ! */
1103        wrqu->essid.length = strlen(tmp);
1104        wrqu->essid.flags = 1;  /* active */
1105
1106        return 0;
1107}
1108
1109/*------------------------------------------------------------------*/
1110/*
1111 * Wireless Handler : get AP address
1112 */
1113static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1114                       union iwreq_data *wrqu, char *extra)
1115{
1116        ray_dev_t *local = netdev_priv(dev);
1117
1118        memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1119        wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1120
1121        return 0;
1122}
1123
1124/*------------------------------------------------------------------*/
1125/*
1126 * Wireless Handler : set Bit-Rate
1127 */
1128static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1129                        union iwreq_data *wrqu, char *extra)
1130{
1131        ray_dev_t *local = netdev_priv(dev);
1132
1133        /* Reject if card is already initialised */
1134        if (local->card_status != CARD_AWAITING_PARAM)
1135                return -EBUSY;
1136
1137        /* Check if rate is in range */
1138        if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1139                return -EINVAL;
1140
1141        /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1142        if ((local->fw_ver == 0x55) &&  /* Please check */
1143            (wrqu->bitrate.value == 2000000))
1144                local->net_default_tx_rate = 3;
1145        else
1146                local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1147
1148        return 0;
1149}
1150
1151/*------------------------------------------------------------------*/
1152/*
1153 * Wireless Handler : get Bit-Rate
1154 */
1155static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1156                        union iwreq_data *wrqu, char *extra)
1157{
1158        ray_dev_t *local = netdev_priv(dev);
1159
1160        if (local->net_default_tx_rate == 3)
1161                wrqu->bitrate.value = 2000000;  /* Hum... */
1162        else
1163                wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1164        wrqu->bitrate.fixed = 0;        /* We are in auto mode */
1165
1166        return 0;
1167}
1168
1169/*------------------------------------------------------------------*/
1170/*
1171 * Wireless Handler : set RTS threshold
1172 */
1173static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1174                       union iwreq_data *wrqu, char *extra)
1175{
1176        ray_dev_t *local = netdev_priv(dev);
1177        int rthr = wrqu->rts.value;
1178
1179        /* Reject if card is already initialised */
1180        if (local->card_status != CARD_AWAITING_PARAM)
1181                return -EBUSY;
1182
1183        /* if(wrq->u.rts.fixed == 0) we should complain */
1184        if (wrqu->rts.disabled)
1185                rthr = 32767;
1186        else {
1187                if ((rthr < 0) || (rthr > 2347))   /* What's the max packet size ??? */
1188                        return -EINVAL;
1189        }
1190        local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1191        local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1192
1193        return -EINPROGRESS;    /* Call commit handler */
1194}
1195
1196/*------------------------------------------------------------------*/
1197/*
1198 * Wireless Handler : get RTS threshold
1199 */
1200static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1201                       union iwreq_data *wrqu, char *extra)
1202{
1203        ray_dev_t *local = netdev_priv(dev);
1204
1205        wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1206            + local->sparm.b5.a_rts_threshold[1];
1207        wrqu->rts.disabled = (wrqu->rts.value == 32767);
1208        wrqu->rts.fixed = 1;
1209
1210        return 0;
1211}
1212
1213/*------------------------------------------------------------------*/
1214/*
1215 * Wireless Handler : set Fragmentation threshold
1216 */
1217static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1218                        union iwreq_data *wrqu, char *extra)
1219{
1220        ray_dev_t *local = netdev_priv(dev);
1221        int fthr = wrqu->frag.value;
1222
1223        /* Reject if card is already initialised */
1224        if (local->card_status != CARD_AWAITING_PARAM)
1225                return -EBUSY;
1226
1227        /* if(wrq->u.frag.fixed == 0) should complain */
1228        if (wrqu->frag.disabled)
1229                fthr = 32767;
1230        else {
1231                if ((fthr < 256) || (fthr > 2347))      /* To check out ! */
1232                        return -EINVAL;
1233        }
1234        local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1235        local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1236
1237        return -EINPROGRESS;    /* Call commit handler */
1238}
1239
1240/*------------------------------------------------------------------*/
1241/*
1242 * Wireless Handler : get Fragmentation threshold
1243 */
1244static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1245                        union iwreq_data *wrqu, char *extra)
1246{
1247        ray_dev_t *local = netdev_priv(dev);
1248
1249        wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1250            + local->sparm.b5.a_frag_threshold[1];
1251        wrqu->frag.disabled = (wrqu->frag.value == 32767);
1252        wrqu->frag.fixed = 1;
1253
1254        return 0;
1255}
1256
1257/*------------------------------------------------------------------*/
1258/*
1259 * Wireless Handler : set Mode of Operation
1260 */
1261static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1262                        union iwreq_data *wrqu, char *extra)
1263{
1264        ray_dev_t *local = netdev_priv(dev);
1265        int err = -EINPROGRESS; /* Call commit handler */
1266        char card_mode = 1;
1267
1268        /* Reject if card is already initialised */
1269        if (local->card_status != CARD_AWAITING_PARAM)
1270                return -EBUSY;
1271
1272        switch (wrqu->mode) {
1273        case IW_MODE_ADHOC:
1274                card_mode = 0;
1275                /* Fall through */
1276        case IW_MODE_INFRA:
1277                local->sparm.b5.a_network_type = card_mode;
1278                break;
1279        default:
1280                err = -EINVAL;
1281        }
1282
1283        return err;
1284}
1285
1286/*------------------------------------------------------------------*/
1287/*
1288 * Wireless Handler : get Mode of Operation
1289 */
1290static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1291                        union iwreq_data *wrqu, char *extra)
1292{
1293        ray_dev_t *local = netdev_priv(dev);
1294
1295        if (local->sparm.b5.a_network_type)
1296                wrqu->mode = IW_MODE_INFRA;
1297        else
1298                wrqu->mode = IW_MODE_ADHOC;
1299
1300        return 0;
1301}
1302
1303/*------------------------------------------------------------------*/
1304/*
1305 * Wireless Handler : get range info
1306 */
1307static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1308                         union iwreq_data *wrqu, char *extra)
1309{
1310        struct iw_range *range = (struct iw_range *)extra;
1311
1312        memset(range, 0, sizeof(struct iw_range));
1313
1314        /* Set the length (very important for backward compatibility) */
1315        wrqu->data.length = sizeof(struct iw_range);
1316
1317        /* Set the Wireless Extension versions */
1318        range->we_version_compiled = WIRELESS_EXT;
1319        range->we_version_source = 9;
1320
1321        /* Set information in the range struct */
1322        range->throughput = 1.1 * 1000 * 1000;  /* Put the right number here */
1323        range->num_channels = hop_pattern_length[(int)country];
1324        range->num_frequency = 0;
1325        range->max_qual.qual = 0;
1326        range->max_qual.level = 255;    /* What's the correct value ? */
1327        range->max_qual.noise = 255;    /* Idem */
1328        range->num_bitrates = 2;
1329        range->bitrate[0] = 1000000;    /* 1 Mb/s */
1330        range->bitrate[1] = 2000000;    /* 2 Mb/s */
1331        return 0;
1332}
1333
1334/*------------------------------------------------------------------*/
1335/*
1336 * Wireless Private Handler : set framing mode
1337 */
1338static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1339                           union iwreq_data *wrqu, char *extra)
1340{
1341        translate = !!*(extra); /* Set framing mode */
1342
1343        return 0;
1344}
1345
1346/*------------------------------------------------------------------*/
1347/*
1348 * Wireless Private Handler : get framing mode
1349 */
1350static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1351                           union iwreq_data *wrqu, char *extra)
1352{
1353        *(extra) = translate;
1354
1355        return 0;
1356}
1357
1358/*------------------------------------------------------------------*/
1359/*
1360 * Wireless Private Handler : get country
1361 */
1362static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1363                           union iwreq_data *wrqu, char *extra)
1364{
1365        *(extra) = country;
1366
1367        return 0;
1368}
1369
1370/*------------------------------------------------------------------*/
1371/*
1372 * Commit handler : called after a bunch of SET operations
1373 */
1374static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1375                      union iwreq_data *wrqu, char *extra)
1376{
1377        return 0;
1378}
1379
1380/*------------------------------------------------------------------*/
1381/*
1382 * Stats handler : return Wireless Stats
1383 */
1384static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1385{
1386        ray_dev_t *local = netdev_priv(dev);
1387        struct pcmcia_device *link = local->finder;
1388        struct status __iomem *p = local->sram + STATUS_BASE;
1389
1390        local->wstats.status = local->card_status;
1391#ifdef WIRELESS_SPY
1392        if ((local->spy_data.spy_number > 0)
1393            && (local->sparm.b5.a_network_type == 0)) {
1394                /* Get it from the first node in spy list */
1395                local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1396                local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1397                local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1398                local->wstats.qual.updated =
1399                    local->spy_data.spy_stat[0].updated;
1400        }
1401#endif /* WIRELESS_SPY */
1402
1403        if (pcmcia_dev_present(link)) {
1404                local->wstats.qual.noise = readb(&p->rxnoise);
1405                local->wstats.qual.updated |= 4;
1406        }
1407
1408        return &local->wstats;
1409} /* end ray_get_wireless_stats */
1410
1411/*------------------------------------------------------------------*/
1412/*
1413 * Structures to export the Wireless Handlers
1414 */
1415
1416static const iw_handler ray_handler[] = {
1417        IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1418        IW_HANDLER(SIOCGIWNAME, ray_get_name),
1419        IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1420        IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1421        IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1422        IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1423        IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1424#ifdef WIRELESS_SPY
1425        IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1426        IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1427        IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1428        IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1429#endif /* WIRELESS_SPY */
1430        IW_HANDLER(SIOCGIWAP, ray_get_wap),
1431        IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1432        IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1433        IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1434        IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1435        IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1436        IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1437        IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1438        IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1439};
1440
1441#define SIOCSIPFRAMING  SIOCIWFIRSTPRIV /* Set framing mode */
1442#define SIOCGIPFRAMING  SIOCIWFIRSTPRIV + 1     /* Get framing mode */
1443#define SIOCGIPCOUNTRY  SIOCIWFIRSTPRIV + 3     /* Get country code */
1444
1445static const iw_handler ray_private_handler[] = {
1446        [0] = ray_set_framing,
1447        [1] = ray_get_framing,
1448        [3] = ray_get_country,
1449};
1450
1451static const struct iw_priv_args ray_private_args[] = {
1452/* cmd,         set_args,       get_args,       name */
1453        {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1454         "set_framing"},
1455        {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1456         "get_framing"},
1457        {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1458         "get_country"},
1459};
1460
1461static const struct iw_handler_def ray_handler_def = {
1462        .num_standard = ARRAY_SIZE(ray_handler),
1463        .num_private = ARRAY_SIZE(ray_private_handler),
1464        .num_private_args = ARRAY_SIZE(ray_private_args),
1465        .standard = ray_handler,
1466        .private = ray_private_handler,
1467        .private_args = ray_private_args,
1468        .get_wireless_stats = ray_get_wireless_stats,
1469};
1470
1471/*===========================================================================*/
1472static int ray_open(struct net_device *dev)
1473{
1474        ray_dev_t *local = netdev_priv(dev);
1475        struct pcmcia_device *link;
1476        link = local->finder;
1477
1478        dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1479
1480        if (link->open == 0)
1481                local->num_multi = 0;
1482        link->open++;
1483
1484        /* If the card is not started, time to start it ! - Jean II */
1485        if (local->card_status == CARD_AWAITING_PARAM) {
1486                int i;
1487
1488                dev_dbg(&link->dev, "ray_open: doing init now !\n");
1489
1490                /* Download startup parameters */
1491                if ((i = dl_startup_params(dev)) < 0) {
1492                        printk(KERN_INFO
1493                               "ray_dev_init dl_startup_params failed - "
1494                               "returns 0x%x\n", i);
1495                        return -1;
1496                }
1497        }
1498
1499        if (sniffer)
1500                netif_stop_queue(dev);
1501        else
1502                netif_start_queue(dev);
1503
1504        dev_dbg(&link->dev, "ray_open ending\n");
1505        return 0;
1506} /* end ray_open */
1507
1508/*===========================================================================*/
1509static int ray_dev_close(struct net_device *dev)
1510{
1511        ray_dev_t *local = netdev_priv(dev);
1512        struct pcmcia_device *link;
1513        link = local->finder;
1514
1515        dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1516
1517        link->open--;
1518        netif_stop_queue(dev);
1519
1520        /* In here, we should stop the hardware (stop card from beeing active)
1521         * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1522         * card is closed we can chage its configuration.
1523         * Probably also need a COR reset to get sane state - Jean II */
1524
1525        return 0;
1526} /* end ray_dev_close */
1527
1528/*===========================================================================*/
1529static void ray_reset(struct net_device *dev)
1530{
1531        pr_debug("ray_reset entered\n");
1532}
1533
1534/*===========================================================================*/
1535/* Cause a firmware interrupt if it is ready for one                         */
1536/* Return nonzero if not ready                                               */
1537static int interrupt_ecf(ray_dev_t *local, int ccs)
1538{
1539        int i = 50;
1540        struct pcmcia_device *link = local->finder;
1541
1542        if (!(pcmcia_dev_present(link))) {
1543                dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1544                return -1;
1545        }
1546        dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1547
1548        while (i &&
1549               (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1550                ECF_INTR_SET))
1551                i--;
1552        if (i == 0) {
1553                dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1554                return -1;
1555        }
1556        /* Fill the mailbox, then kick the card */
1557        writeb(ccs, local->sram + SCB_BASE);
1558        writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1559        return 0;
1560} /* interrupt_ecf */
1561
1562/*===========================================================================*/
1563/* Get next free transmit CCS                                                */
1564/* Return - index of current tx ccs                                          */
1565static int get_free_tx_ccs(ray_dev_t *local)
1566{
1567        int i;
1568        struct ccs __iomem *pccs = ccs_base(local);
1569        struct pcmcia_device *link = local->finder;
1570
1571        if (!(pcmcia_dev_present(link))) {
1572                dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1573                return ECARDGONE;
1574        }
1575
1576        if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1577                dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1578                return ECCSBUSY;
1579        }
1580
1581        for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1582                if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1583                        writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1584                        writeb(CCS_END_LIST, &(pccs + i)->link);
1585                        local->tx_ccs_lock = 0;
1586                        return i;
1587                }
1588        }
1589        local->tx_ccs_lock = 0;
1590        dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1591        return ECCSFULL;
1592} /* get_free_tx_ccs */
1593
1594/*===========================================================================*/
1595/* Get next free CCS                                                         */
1596/* Return - index of current ccs                                             */
1597static int get_free_ccs(ray_dev_t *local)
1598{
1599        int i;
1600        struct ccs __iomem *pccs = ccs_base(local);
1601        struct pcmcia_device *link = local->finder;
1602
1603        if (!(pcmcia_dev_present(link))) {
1604                dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1605                return ECARDGONE;
1606        }
1607        if (test_and_set_bit(0, &local->ccs_lock)) {
1608                dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1609                return ECCSBUSY;
1610        }
1611
1612        for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1613                if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1614                        writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1615                        writeb(CCS_END_LIST, &(pccs + i)->link);
1616                        local->ccs_lock = 0;
1617                        return i;
1618                }
1619        }
1620        local->ccs_lock = 0;
1621        dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1622        return ECCSFULL;
1623} /* get_free_ccs */
1624
1625/*===========================================================================*/
1626static void authenticate_timeout(struct timer_list *t)
1627{
1628        ray_dev_t *local = from_timer(local, t, timer);
1629        del_timer(&local->timer);
1630        printk(KERN_INFO "ray_cs Authentication with access point failed"
1631               " - timeout\n");
1632        join_net(&local->timer);
1633}
1634
1635/*===========================================================================*/
1636static int parse_addr(char *in_str, UCHAR *out)
1637{
1638        int len;
1639        int i, j, k;
1640        int status;
1641
1642        if (in_str == NULL)
1643                return 0;
1644        if ((len = strlen(in_str)) < 2)
1645                return 0;
1646        memset(out, 0, ADDRLEN);
1647
1648        status = 1;
1649        j = len - 1;
1650        if (j > 12)
1651                j = 12;
1652        i = 5;
1653
1654        while (j > 0) {
1655                if ((k = hex_to_bin(in_str[j--])) != -1)
1656                        out[i] = k;
1657                else
1658                        return 0;
1659
1660                if (j == 0)
1661                        break;
1662                if ((k = hex_to_bin(in_str[j--])) != -1)
1663                        out[i] += k << 4;
1664                else
1665                        return 0;
1666                if (!i--)
1667                        break;
1668        }
1669        return status;
1670}
1671
1672/*===========================================================================*/
1673static struct net_device_stats *ray_get_stats(struct net_device *dev)
1674{
1675        ray_dev_t *local = netdev_priv(dev);
1676        struct pcmcia_device *link = local->finder;
1677        struct status __iomem *p = local->sram + STATUS_BASE;
1678        if (!(pcmcia_dev_present(link))) {
1679                dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1680                return &local->stats;
1681        }
1682        if (readb(&p->mrx_overflow_for_host)) {
1683                local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1684                writeb(0, &p->mrx_overflow);
1685                writeb(0, &p->mrx_overflow_for_host);
1686        }
1687        if (readb(&p->mrx_checksum_error_for_host)) {
1688                local->stats.rx_crc_errors +=
1689                    swab16(readw(&p->mrx_checksum_error));
1690                writeb(0, &p->mrx_checksum_error);
1691                writeb(0, &p->mrx_checksum_error_for_host);
1692        }
1693        if (readb(&p->rx_hec_error_for_host)) {
1694                local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1695                writeb(0, &p->rx_hec_error);
1696                writeb(0, &p->rx_hec_error_for_host);
1697        }
1698        return &local->stats;
1699}
1700
1701/*===========================================================================*/
1702static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1703                            int len)
1704{
1705        ray_dev_t *local = netdev_priv(dev);
1706        struct pcmcia_device *link = local->finder;
1707        int ccsindex;
1708        int i;
1709        struct ccs __iomem *pccs;
1710
1711        if (!(pcmcia_dev_present(link))) {
1712                dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1713                return;
1714        }
1715
1716        if ((ccsindex = get_free_ccs(local)) < 0) {
1717                dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1718                return;
1719        }
1720        pccs = ccs_base(local) + ccsindex;
1721        writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1722        writeb(objid, &pccs->var.update_param.object_id);
1723        writeb(1, &pccs->var.update_param.number_objects);
1724        writeb(0, &pccs->var.update_param.failure_cause);
1725        for (i = 0; i < len; i++) {
1726                writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1727        }
1728        /* Interrupt the firmware to process the command */
1729        if (interrupt_ecf(local, ccsindex)) {
1730                dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1731                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1732        }
1733}
1734
1735/*===========================================================================*/
1736static void ray_update_multi_list(struct net_device *dev, int all)
1737{
1738        int ccsindex;
1739        struct ccs __iomem *pccs;
1740        ray_dev_t *local = netdev_priv(dev);
1741        struct pcmcia_device *link = local->finder;
1742        void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1743
1744        if (!(pcmcia_dev_present(link))) {
1745                dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1746                return;
1747        } else
1748                dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1749        if ((ccsindex = get_free_ccs(local)) < 0) {
1750                dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1751                return;
1752        }
1753        pccs = ccs_base(local) + ccsindex;
1754        writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1755
1756        if (all) {
1757                writeb(0xff, &pccs->var);
1758                local->num_multi = 0xff;
1759        } else {
1760                struct netdev_hw_addr *ha;
1761                int i = 0;
1762
1763                /* Copy the kernel's list of MC addresses to card */
1764                netdev_for_each_mc_addr(ha, dev) {
1765                        memcpy_toio(p, ha->addr, ETH_ALEN);
1766                        dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1767                                ha->addr);
1768                        p += ETH_ALEN;
1769                        i++;
1770                }
1771                if (i > 256 / ADDRLEN)
1772                        i = 256 / ADDRLEN;
1773                writeb((UCHAR) i, &pccs->var);
1774                dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1775                /* Interrupt the firmware to process the command */
1776                local->num_multi = i;
1777        }
1778        if (interrupt_ecf(local, ccsindex)) {
1779                dev_dbg(&link->dev,
1780                      "ray_cs update_multi failed - ECF not ready for intr\n");
1781                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1782        }
1783} /* end ray_update_multi_list */
1784
1785/*===========================================================================*/
1786static void set_multicast_list(struct net_device *dev)
1787{
1788        ray_dev_t *local = netdev_priv(dev);
1789        UCHAR promisc;
1790
1791        pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1792
1793        if (dev->flags & IFF_PROMISC) {
1794                if (local->sparm.b5.a_promiscuous_mode == 0) {
1795                        pr_debug("ray_cs set_multicast_list promisc on\n");
1796                        local->sparm.b5.a_promiscuous_mode = 1;
1797                        promisc = 1;
1798                        ray_update_parm(dev, OBJID_promiscuous_mode,
1799                                        &promisc, sizeof(promisc));
1800                }
1801        } else {
1802                if (local->sparm.b5.a_promiscuous_mode == 1) {
1803                        pr_debug("ray_cs set_multicast_list promisc off\n");
1804                        local->sparm.b5.a_promiscuous_mode = 0;
1805                        promisc = 0;
1806                        ray_update_parm(dev, OBJID_promiscuous_mode,
1807                                        &promisc, sizeof(promisc));
1808                }
1809        }
1810
1811        if (dev->flags & IFF_ALLMULTI)
1812                ray_update_multi_list(dev, 1);
1813        else {
1814                if (local->num_multi != netdev_mc_count(dev))
1815                        ray_update_multi_list(dev, 0);
1816        }
1817} /* end set_multicast_list */
1818
1819/*=============================================================================
1820 * All routines below here are run at interrupt time.
1821=============================================================================*/
1822static irqreturn_t ray_interrupt(int irq, void *dev_id)
1823{
1824        struct net_device *dev = (struct net_device *)dev_id;
1825        struct pcmcia_device *link;
1826        ray_dev_t *local;
1827        struct ccs __iomem *pccs;
1828        struct rcs __iomem *prcs;
1829        UCHAR rcsindex;
1830        UCHAR tmp;
1831        UCHAR cmd;
1832        UCHAR status;
1833        UCHAR memtmp[ESSID_SIZE + 1];
1834
1835
1836        if (dev == NULL)        /* Note that we want interrupts with dev->start == 0 */
1837                return IRQ_NONE;
1838
1839        pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1840
1841        local = netdev_priv(dev);
1842        link = local->finder;
1843        if (!pcmcia_dev_present(link)) {
1844                pr_debug(
1845                        "ray_cs interrupt from device not present or suspended.\n");
1846                return IRQ_NONE;
1847        }
1848        rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1849
1850        if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1851                dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1852                clear_interrupt(local);
1853                return IRQ_HANDLED;
1854        }
1855        if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1856                pccs = ccs_base(local) + rcsindex;
1857                cmd = readb(&pccs->cmd);
1858                status = readb(&pccs->buffer_status);
1859                switch (cmd) {
1860                case CCS_DOWNLOAD_STARTUP_PARAMS:       /* Happens in firmware someday */
1861                        del_timer(&local->timer);
1862                        if (status == CCS_COMMAND_COMPLETE) {
1863                                dev_dbg(&link->dev,
1864                                      "ray_cs interrupt download_startup_parameters OK\n");
1865                        } else {
1866                                dev_dbg(&link->dev,
1867                                      "ray_cs interrupt download_startup_parameters fail\n");
1868                        }
1869                        break;
1870                case CCS_UPDATE_PARAMS:
1871                        dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1872                        if (status != CCS_COMMAND_COMPLETE) {
1873                                tmp =
1874                                    readb(&pccs->var.update_param.
1875                                          failure_cause);
1876                                dev_dbg(&link->dev,
1877                                      "ray_cs interrupt update params failed - reason %d\n",
1878                                      tmp);
1879                        }
1880                        break;
1881                case CCS_REPORT_PARAMS:
1882                        dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1883                        break;
1884                case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1885                        dev_dbg(&link->dev,
1886                              "ray_cs interrupt CCS Update Multicast List done\n");
1887                        break;
1888                case CCS_UPDATE_POWER_SAVINGS_MODE:
1889                        dev_dbg(&link->dev,
1890                              "ray_cs interrupt update power save mode done\n");
1891                        break;
1892                case CCS_START_NETWORK:
1893                case CCS_JOIN_NETWORK:
1894                        memcpy(memtmp, local->sparm.b4.a_current_ess_id,
1895                                                                ESSID_SIZE);
1896                        memtmp[ESSID_SIZE] = '\0';
1897
1898                        if (status == CCS_COMMAND_COMPLETE) {
1899                                if (readb
1900                                    (&pccs->var.start_network.net_initiated) ==
1901                                    1) {
1902                                        dev_dbg(&link->dev,
1903                                              "ray_cs interrupt network \"%s\" started\n",
1904                                              memtmp);
1905                                } else {
1906                                        dev_dbg(&link->dev,
1907                                              "ray_cs interrupt network \"%s\" joined\n",
1908                                              memtmp);
1909                                }
1910                                memcpy_fromio(&local->bss_id,
1911                                              pccs->var.start_network.bssid,
1912                                              ADDRLEN);
1913
1914                                if (local->fw_ver == 0x55)
1915                                        local->net_default_tx_rate = 3;
1916                                else
1917                                        local->net_default_tx_rate =
1918                                            readb(&pccs->var.start_network.
1919                                                  net_default_tx_rate);
1920                                local->encryption =
1921                                    readb(&pccs->var.start_network.encryption);
1922                                if (!sniffer && (local->net_type == INFRA)
1923                                    && !(local->sparm.b4.a_acting_as_ap_status)) {
1924                                        authenticate(local);
1925                                }
1926                                local->card_status = CARD_ACQ_COMPLETE;
1927                        } else {
1928                                local->card_status = CARD_ACQ_FAILED;
1929
1930                                del_timer(&local->timer);
1931                                local->timer.expires = jiffies + HZ * 5;
1932                                if (status == CCS_START_NETWORK) {
1933                                        dev_dbg(&link->dev,
1934                                              "ray_cs interrupt network \"%s\" start failed\n",
1935                                              memtmp);
1936                                        local->timer.function = start_net;
1937                                } else {
1938                                        dev_dbg(&link->dev,
1939                                              "ray_cs interrupt network \"%s\" join failed\n",
1940                                              memtmp);
1941                                        local->timer.function = join_net;
1942                                }
1943                                add_timer(&local->timer);
1944                        }
1945                        break;
1946                case CCS_START_ASSOCIATION:
1947                        if (status == CCS_COMMAND_COMPLETE) {
1948                                local->card_status = CARD_ASSOC_COMPLETE;
1949                                dev_dbg(&link->dev, "ray_cs association successful\n");
1950                        } else {
1951                                dev_dbg(&link->dev, "ray_cs association failed,\n");
1952                                local->card_status = CARD_ASSOC_FAILED;
1953                                join_net(&local->timer);
1954                        }
1955                        break;
1956                case CCS_TX_REQUEST:
1957                        if (status == CCS_COMMAND_COMPLETE) {
1958                                dev_dbg(&link->dev,
1959                                      "ray_cs interrupt tx request complete\n");
1960                        } else {
1961                                dev_dbg(&link->dev,
1962                                      "ray_cs interrupt tx request failed\n");
1963                        }
1964                        if (!sniffer)
1965                                netif_start_queue(dev);
1966                        netif_wake_queue(dev);
1967                        break;
1968                case CCS_TEST_MEMORY:
1969                        dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1970                        break;
1971                case CCS_SHUTDOWN:
1972                        dev_dbg(&link->dev,
1973                              "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1974                        break;
1975                case CCS_DUMP_MEMORY:
1976                        dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1977                        break;
1978                case CCS_START_TIMER:
1979                        dev_dbg(&link->dev,
1980                              "ray_cs interrupt DING - raylink timer expired\n");
1981                        break;
1982                default:
1983                        dev_dbg(&link->dev,
1984                              "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1985                              rcsindex, cmd);
1986                }
1987                writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1988        } else { /* It's an RCS */
1989
1990                prcs = rcs_base(local) + rcsindex;
1991
1992                switch (readb(&prcs->interrupt_id)) {
1993                case PROCESS_RX_PACKET:
1994                        ray_rx(dev, local, prcs);
1995                        break;
1996                case REJOIN_NET_COMPLETE:
1997                        dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
1998                        local->card_status = CARD_ACQ_COMPLETE;
1999                        /* do we need to clear tx buffers CCS's? */
2000                        if (local->sparm.b4.a_network_type == ADHOC) {
2001                                if (!sniffer)
2002                                        netif_start_queue(dev);
2003                        } else {
2004                                memcpy_fromio(&local->bss_id,
2005                                              prcs->var.rejoin_net_complete.
2006                                              bssid, ADDRLEN);
2007                                dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2008                                        local->bss_id);
2009                                if (!sniffer)
2010                                        authenticate(local);
2011                        }
2012                        break;
2013                case ROAMING_INITIATED:
2014                        dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2015                        netif_stop_queue(dev);
2016                        local->card_status = CARD_DOING_ACQ;
2017                        break;
2018                case JAPAN_CALL_SIGN_RXD:
2019                        dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2020                        break;
2021                default:
2022                        dev_dbg(&link->dev,
2023                              "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2024                              rcsindex,
2025                              (unsigned int)readb(&prcs->interrupt_id));
2026                        break;
2027                }
2028                writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2029        }
2030        clear_interrupt(local);
2031        return IRQ_HANDLED;
2032} /* ray_interrupt */
2033
2034/*===========================================================================*/
2035static void ray_rx(struct net_device *dev, ray_dev_t *local,
2036                   struct rcs __iomem *prcs)
2037{
2038        int rx_len;
2039        unsigned int pkt_addr;
2040        void __iomem *pmsg;
2041        pr_debug("ray_rx process rx packet\n");
2042
2043        /* Calculate address of packet within Rx buffer */
2044        pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2045                    + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2046        /* Length of first packet fragment */
2047        rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2048            + readb(&prcs->var.rx_packet.rx_data_length[1]);
2049
2050        local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2051        pmsg = local->rmem + pkt_addr;
2052        switch (readb(pmsg)) {
2053        case DATA_TYPE:
2054                pr_debug("ray_rx data type\n");
2055                rx_data(dev, prcs, pkt_addr, rx_len);
2056                break;
2057        case AUTHENTIC_TYPE:
2058                pr_debug("ray_rx authentic type\n");
2059                if (sniffer)
2060                        rx_data(dev, prcs, pkt_addr, rx_len);
2061                else
2062                        rx_authenticate(local, prcs, pkt_addr, rx_len);
2063                break;
2064        case DEAUTHENTIC_TYPE:
2065                pr_debug("ray_rx deauth type\n");
2066                if (sniffer)
2067                        rx_data(dev, prcs, pkt_addr, rx_len);
2068                else
2069                        rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2070                break;
2071        case NULL_MSG_TYPE:
2072                pr_debug("ray_cs rx NULL msg\n");
2073                break;
2074        case BEACON_TYPE:
2075                pr_debug("ray_rx beacon type\n");
2076                if (sniffer)
2077                        rx_data(dev, prcs, pkt_addr, rx_len);
2078
2079                copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2080                                  rx_len < sizeof(struct beacon_rx) ?
2081                                  rx_len : sizeof(struct beacon_rx));
2082
2083                local->beacon_rxed = 1;
2084                /* Get the statistics so the card counters never overflow */
2085                ray_get_stats(dev);
2086                break;
2087        default:
2088                pr_debug("ray_cs unknown pkt type %2x\n",
2089                      (unsigned int)readb(pmsg));
2090                break;
2091        }
2092
2093} /* end ray_rx */
2094
2095/*===========================================================================*/
2096static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2097                    unsigned int pkt_addr, int rx_len)
2098{
2099        struct sk_buff *skb = NULL;
2100        struct rcs __iomem *prcslink = prcs;
2101        ray_dev_t *local = netdev_priv(dev);
2102        UCHAR *rx_ptr;
2103        int total_len;
2104        int tmp;
2105#ifdef WIRELESS_SPY
2106        int siglev = local->last_rsl;
2107        u_char linksrcaddr[ETH_ALEN];   /* Other end of the wireless link */
2108#endif
2109
2110        if (!sniffer) {
2111                if (translate) {
2112/* TBD length needs fixing for translated header */
2113                        if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2114                            rx_len >
2115                            (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2116                             FCS_LEN)) {
2117                                pr_debug(
2118                                      "ray_cs invalid packet length %d received\n",
2119                                      rx_len);
2120                                return;
2121                        }
2122                } else { /* encapsulated ethernet */
2123
2124                        if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2125                            rx_len >
2126                            (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2127                             FCS_LEN)) {
2128                                pr_debug(
2129                                      "ray_cs invalid packet length %d received\n",
2130                                      rx_len);
2131                                return;
2132                        }
2133                }
2134        }
2135        pr_debug("ray_cs rx_data packet\n");
2136        /* If fragmented packet, verify sizes of fragments add up */
2137        if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2138                pr_debug("ray_cs rx'ed fragment\n");
2139                tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2140                    + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2141                total_len = tmp;
2142                prcslink = prcs;
2143                do {
2144                        tmp -=
2145                            (readb(&prcslink->var.rx_packet.rx_data_length[0])
2146                             << 8)
2147                            + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2148                        if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2149                            == 0xFF || tmp < 0)
2150                                break;
2151                        prcslink = rcs_base(local)
2152                            + readb(&prcslink->link_field);
2153                } while (1);
2154
2155                if (tmp < 0) {
2156                        pr_debug(
2157                              "ray_cs rx_data fragment lengths don't add up\n");
2158                        local->stats.rx_dropped++;
2159                        release_frag_chain(local, prcs);
2160                        return;
2161                }
2162        } else { /* Single unfragmented packet */
2163                total_len = rx_len;
2164        }
2165
2166        skb = dev_alloc_skb(total_len + 5);
2167        if (skb == NULL) {
2168                pr_debug("ray_cs rx_data could not allocate skb\n");
2169                local->stats.rx_dropped++;
2170                if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2171                        release_frag_chain(local, prcs);
2172                return;
2173        }
2174        skb_reserve(skb, 2);    /* Align IP on 16 byte (TBD check this) */
2175
2176        pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2177              rx_len);
2178
2179/************************/
2180        /* Reserve enough room for the whole damn packet. */
2181        rx_ptr = skb_put(skb, total_len);
2182        /* Copy the whole packet to sk_buff */
2183        rx_ptr +=
2184            copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2185        /* Get source address */
2186#ifdef WIRELESS_SPY
2187        skb_copy_from_linear_data_offset(skb,
2188                                         offsetof(struct mac_header, addr_2),
2189                                         linksrcaddr, ETH_ALEN);
2190#endif
2191        /* Now, deal with encapsulation/translation/sniffer */
2192        if (!sniffer) {
2193                if (!translate) {
2194                        /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2195/* TBD reserve            skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2196                        skb_pull(skb, RX_MAC_HEADER_LENGTH);
2197                } else {
2198                        /* Do translation */
2199                        untranslate(local, skb, total_len);
2200                }
2201        } else { /* sniffer mode, so just pass whole packet */
2202        }
2203
2204/************************/
2205        /* Now pick up the rest of the fragments if any */
2206        tmp = 17;
2207        if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2208                prcslink = prcs;
2209                pr_debug("ray_cs rx_data in fragment loop\n");
2210                do {
2211                        prcslink = rcs_base(local)
2212                            +
2213                            readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2214                        rx_len =
2215                            ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2216                              << 8)
2217                             +
2218                             readb(&prcslink->var.rx_packet.rx_data_length[1]))
2219                            & RX_BUFF_END;
2220                        pkt_addr =
2221                            ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2222                              8)
2223                             + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2224                            & RX_BUFF_END;
2225
2226                        rx_ptr +=
2227                            copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2228
2229                } while (tmp-- &&
2230                         readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2231                         0xFF);
2232                release_frag_chain(local, prcs);
2233        }
2234
2235        skb->protocol = eth_type_trans(skb, dev);
2236        netif_rx(skb);
2237        local->stats.rx_packets++;
2238        local->stats.rx_bytes += total_len;
2239
2240        /* Gather signal strength per address */
2241#ifdef WIRELESS_SPY
2242        /* For the Access Point or the node having started the ad-hoc net
2243         * note : ad-hoc work only in some specific configurations, but we
2244         * kludge in ray_get_wireless_stats... */
2245        if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2246                /* Update statistics */
2247                /*local->wstats.qual.qual = none ? */
2248                local->wstats.qual.level = siglev;
2249                /*local->wstats.qual.noise = none ? */
2250                local->wstats.qual.updated = 0x2;
2251        }
2252        /* Now, update the spy stuff */
2253        {
2254                struct iw_quality wstats;
2255                wstats.level = siglev;
2256                /* wstats.noise = none ? */
2257                /* wstats.qual = none ? */
2258                wstats.updated = 0x2;
2259                /* Update spy records */
2260                wireless_spy_update(dev, linksrcaddr, &wstats);
2261        }
2262#endif /* WIRELESS_SPY */
2263} /* end rx_data */
2264
2265/*===========================================================================*/
2266static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2267{
2268        snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2269        struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2270        __be16 type = *(__be16 *) psnap->ethertype;
2271        int delta;
2272        struct ethhdr *peth;
2273        UCHAR srcaddr[ADDRLEN];
2274        UCHAR destaddr[ADDRLEN];
2275        static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2276        static const UCHAR org_1042[3] = { 0, 0, 0 };
2277
2278        memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2279        memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2280
2281#if 0
2282        if {
2283                print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2284                               DUMP_PREFIX_NONE, 16, 1,
2285                               skb->data, 64, true);
2286                printk(KERN_DEBUG
2287                       "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2288                       ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2289                       psnap->org[0], psnap->org[1], psnap->org[2]);
2290                printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2291        }
2292#endif
2293
2294        if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2295                /* not a snap type so leave it alone */
2296                pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2297                      psnap->dsap, psnap->ssap, psnap->ctrl);
2298
2299                delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2300                peth = (struct ethhdr *)(skb->data + delta);
2301                peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2302        } else { /* Its a SNAP */
2303                if (memcmp(psnap->org, org_bridge, 3) == 0) {
2304                /* EtherII and nuke the LLC */
2305                        pr_debug("ray_cs untranslate Bridge encap\n");
2306                        delta = RX_MAC_HEADER_LENGTH
2307                            + sizeof(struct snaphdr_t) - ETH_HLEN;
2308                        peth = (struct ethhdr *)(skb->data + delta);
2309                        peth->h_proto = type;
2310                } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2311                        switch (ntohs(type)) {
2312                        case ETH_P_IPX:
2313                        case ETH_P_AARP:
2314                                pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2315                                delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2316                                peth = (struct ethhdr *)(skb->data + delta);
2317                                peth->h_proto =
2318                                    htons(len - RX_MAC_HEADER_LENGTH);
2319                                break;
2320                        default:
2321                                pr_debug("ray_cs untranslate RFC default\n");
2322                                delta = RX_MAC_HEADER_LENGTH +
2323                                    sizeof(struct snaphdr_t) - ETH_HLEN;
2324                                peth = (struct ethhdr *)(skb->data + delta);
2325                                peth->h_proto = type;
2326                                break;
2327                        }
2328                } else {
2329                        printk("ray_cs untranslate very confused by packet\n");
2330                        delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2331                        peth = (struct ethhdr *)(skb->data + delta);
2332                        peth->h_proto = type;
2333                }
2334        }
2335/* TBD reserve  skb_reserve(skb, delta); */
2336        skb_pull(skb, delta);
2337        pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2338              skb->data);
2339        memcpy(peth->h_dest, destaddr, ADDRLEN);
2340        memcpy(peth->h_source, srcaddr, ADDRLEN);
2341#if 0
2342        {
2343                int i;
2344                printk(KERN_DEBUG "skb->data after untranslate:");
2345                for (i = 0; i < 64; i++)
2346                        printk("%02x ", skb->data[i]);
2347                printk("\n");
2348        }
2349#endif
2350} /* end untranslate */
2351
2352/*===========================================================================*/
2353/* Copy data from circular receive buffer to PC memory.
2354 * dest     = destination address in PC memory
2355 * pkt_addr = source address in receive buffer
2356 * len      = length of packet to copy
2357 */
2358static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2359                             int length)
2360{
2361        int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2362        if (wrap_bytes <= 0) {
2363                memcpy_fromio(dest, local->rmem + pkt_addr, length);
2364        } else { /* Packet wrapped in circular buffer */
2365
2366                memcpy_fromio(dest, local->rmem + pkt_addr,
2367                              length - wrap_bytes);
2368                memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2369                              wrap_bytes);
2370        }
2371        return length;
2372}
2373
2374/*===========================================================================*/
2375static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2376{
2377        struct rcs __iomem *prcslink = prcs;
2378        int tmp = 17;
2379        unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2380
2381        while (tmp--) {
2382                writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2383                if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2384                        pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2385                              rcsindex);
2386                        break;
2387                }
2388                prcslink = rcs_base(local) + rcsindex;
2389                rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2390        }
2391        writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2392}
2393
2394/*===========================================================================*/
2395static void authenticate(ray_dev_t *local)
2396{
2397        struct pcmcia_device *link = local->finder;
2398        dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2399        if (!(pcmcia_dev_present(link))) {
2400                dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2401                return;
2402        }
2403
2404        del_timer(&local->timer);
2405        if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2406                local->timer.function = join_net;
2407        } else {
2408                local->timer.function = authenticate_timeout;
2409        }
2410        local->timer.expires = jiffies + HZ * 2;
2411        add_timer(&local->timer);
2412        local->authentication_state = AWAITING_RESPONSE;
2413} /* end authenticate */
2414
2415/*===========================================================================*/
2416static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2417                            unsigned int pkt_addr, int rx_len)
2418{
2419        UCHAR buff[256];
2420        struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2421
2422        del_timer(&local->timer);
2423
2424        copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2425        /* if we are trying to get authenticated */
2426        if (local->sparm.b4.a_network_type == ADHOC) {
2427                pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2428                      msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2429                      msg->var[4], msg->var[5]);
2430                if (msg->var[2] == 1) {
2431                        pr_debug("ray_cs Sending authentication response.\n");
2432                        if (!build_auth_frame
2433                            (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2434                                local->authentication_state = NEED_TO_AUTH;
2435                                memcpy(local->auth_id, msg->mac.addr_2,
2436                                       ADDRLEN);
2437                        }
2438                }
2439        } else { /* Infrastructure network */
2440
2441                if (local->authentication_state == AWAITING_RESPONSE) {
2442                        /* Verify authentication sequence #2 and success */
2443                        if (msg->var[2] == 2) {
2444                                if ((msg->var[3] | msg->var[4]) == 0) {
2445                                        pr_debug("Authentication successful\n");
2446                                        local->card_status = CARD_AUTH_COMPLETE;
2447                                        associate(local);
2448                                        local->authentication_state =
2449                                            AUTHENTICATED;
2450                                } else {
2451                                        pr_debug("Authentication refused\n");
2452                                        local->card_status = CARD_AUTH_REFUSED;
2453                                        join_net(&local->timer);
2454                                        local->authentication_state =
2455                                            UNAUTHENTICATED;
2456                                }
2457                        }
2458                }
2459        }
2460
2461} /* end rx_authenticate */
2462
2463/*===========================================================================*/
2464static void associate(ray_dev_t *local)
2465{
2466        struct ccs __iomem *pccs;
2467        struct pcmcia_device *link = local->finder;
2468        struct net_device *dev = link->priv;
2469        int ccsindex;
2470        if (!(pcmcia_dev_present(link))) {
2471                dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2472                return;
2473        }
2474        /* If no tx buffers available, return */
2475        if ((ccsindex = get_free_ccs(local)) < 0) {
2476/* TBD should never be here but... what if we are? */
2477                dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2478                return;
2479        }
2480        dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2481        pccs = ccs_base(local) + ccsindex;
2482        /* fill in the CCS */
2483        writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2484        /* Interrupt the firmware to process the command */
2485        if (interrupt_ecf(local, ccsindex)) {
2486                dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2487                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2488
2489                del_timer(&local->timer);
2490                local->timer.expires = jiffies + HZ * 2;
2491                local->timer.function = join_net;
2492                add_timer(&local->timer);
2493                local->card_status = CARD_ASSOC_FAILED;
2494                return;
2495        }
2496        if (!sniffer)
2497                netif_start_queue(dev);
2498
2499} /* end associate */
2500
2501/*===========================================================================*/
2502static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2503                              unsigned int pkt_addr, int rx_len)
2504{
2505/*  UCHAR buff[256];
2506    struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2507*/
2508        pr_debug("Deauthentication frame received\n");
2509        local->authentication_state = UNAUTHENTICATED;
2510        /* Need to reauthenticate or rejoin depending on reason code */
2511/*  copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2512 */
2513}
2514
2515/*===========================================================================*/
2516static void clear_interrupt(ray_dev_t *local)
2517{
2518        writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2519}
2520
2521/*===========================================================================*/
2522#ifdef CONFIG_PROC_FS
2523#define MAXDATA (PAGE_SIZE - 80)
2524
2525static const char *card_status[] = {
2526        "Card inserted - uninitialized",        /* 0 */
2527        "Card not downloaded",                  /* 1 */
2528        "Waiting for download parameters",      /* 2 */
2529        "Card doing acquisition",               /* 3 */
2530        "Acquisition complete",                 /* 4 */
2531        "Authentication complete",              /* 5 */
2532        "Association complete",                 /* 6 */
2533        "???", "???", "???", "???",             /* 7 8 9 10 undefined */
2534        "Card init error",                      /* 11 */
2535        "Download parameters error",            /* 12 */
2536        "???",                                  /* 13 */
2537        "Acquisition failed",                   /* 14 */
2538        "Authentication refused",               /* 15 */
2539        "Association failed"                    /* 16 */
2540};
2541
2542static const char *nettype[] = { "Adhoc", "Infra " };
2543static const char *framing[] = { "Encapsulation", "Translation" }
2544
2545;
2546/*===========================================================================*/
2547static int ray_cs_proc_show(struct seq_file *m, void *v)
2548{
2549/* Print current values which are not available via other means
2550 * eg ifconfig
2551 */
2552        int i;
2553        struct pcmcia_device *link;
2554        struct net_device *dev;
2555        ray_dev_t *local;
2556        UCHAR *p;
2557        struct freq_hop_element *pfh;
2558        UCHAR c[33];
2559
2560        link = this_device;
2561        if (!link)
2562                return 0;
2563        dev = (struct net_device *)link->priv;
2564        if (!dev)
2565                return 0;
2566        local = netdev_priv(dev);
2567        if (!local)
2568                return 0;
2569
2570        seq_puts(m, "Raylink Wireless LAN driver status\n");
2571        seq_printf(m, "%s\n", rcsid);
2572        /* build 4 does not report version, and field is 0x55 after memtest */
2573        seq_puts(m, "Firmware version     = ");
2574        if (local->fw_ver == 0x55)
2575                seq_puts(m, "4 - Use dump_cis for more details\n");
2576        else
2577                seq_printf(m, "%2d.%02d.%02d\n",
2578                           local->fw_ver, local->fw_bld, local->fw_var);
2579
2580        for (i = 0; i < 32; i++)
2581                c[i] = local->sparm.b5.a_current_ess_id[i];
2582        c[32] = 0;
2583        seq_printf(m, "%s network ESSID = \"%s\"\n",
2584                   nettype[local->sparm.b5.a_network_type], c);
2585
2586        p = local->bss_id;
2587        seq_printf(m, "BSSID                = %pM\n", p);
2588
2589        seq_printf(m, "Country code         = %d\n",
2590                   local->sparm.b5.a_curr_country_code);
2591
2592        i = local->card_status;
2593        if (i < 0)
2594                i = 10;
2595        if (i > 16)
2596                i = 10;
2597        seq_printf(m, "Card status          = %s\n", card_status[i]);
2598
2599        seq_printf(m, "Framing mode         = %s\n", framing[translate]);
2600
2601        seq_printf(m, "Last pkt signal lvl  = %d\n", local->last_rsl);
2602
2603        if (local->beacon_rxed) {
2604                /* Pull some fields out of last beacon received */
2605                seq_printf(m, "Beacon Interval      = %d Kus\n",
2606                           local->last_bcn.beacon_intvl[0]
2607                           + 256 * local->last_bcn.beacon_intvl[1]);
2608
2609                p = local->last_bcn.elements;
2610                if (p[0] == C_ESSID_ELEMENT_ID)
2611                        p += p[1] + 2;
2612                else {
2613                        seq_printf(m,
2614                                   "Parse beacon failed at essid element id = %d\n",
2615                                   p[0]);
2616                        return 0;
2617                }
2618
2619                if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2620                        seq_puts(m, "Supported rate codes = ");
2621                        for (i = 2; i < p[1] + 2; i++)
2622                                seq_printf(m, "0x%02x ", p[i]);
2623                        seq_putc(m, '\n');
2624                        p += p[1] + 2;
2625                } else {
2626                        seq_puts(m, "Parse beacon failed at rates element\n");
2627                        return 0;
2628                }
2629
2630                if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2631                        pfh = (struct freq_hop_element *)p;
2632                        seq_printf(m, "Hop dwell            = %d Kus\n",
2633                                   pfh->dwell_time[0] +
2634                                   256 * pfh->dwell_time[1]);
2635                        seq_printf(m, "Hop set              = %d\n",
2636                                   pfh->hop_set);
2637                        seq_printf(m, "Hop pattern          = %d\n",
2638                                   pfh->hop_pattern);
2639                        seq_printf(m, "Hop index            = %d\n",
2640                                   pfh->hop_index);
2641                        p += p[1] + 2;
2642                } else {
2643                        seq_puts(m,
2644                                 "Parse beacon failed at FH param element\n");
2645                        return 0;
2646                }
2647        } else {
2648                seq_puts(m, "No beacons received\n");
2649        }
2650        return 0;
2651}
2652#endif
2653/*===========================================================================*/
2654static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2655{
2656        int addr;
2657        struct ccs __iomem *pccs;
2658        struct tx_msg __iomem *ptx;
2659        int ccsindex;
2660
2661        /* If no tx buffers available, return */
2662        if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2663                pr_debug("ray_cs send authenticate - No free tx ccs\n");
2664                return -1;
2665        }
2666
2667        pccs = ccs_base(local) + ccsindex;
2668
2669        /* Address in card space */
2670        addr = TX_BUF_BASE + (ccsindex << 11);
2671        /* fill in the CCS */
2672        writeb(CCS_TX_REQUEST, &pccs->cmd);
2673        writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2674        writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2675        writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2676        writeb(TX_AUTHENTICATE_LENGTH_LSB,
2677               pccs->var.tx_request.tx_data_length + 1);
2678        writeb(0, &pccs->var.tx_request.pow_sav_mode);
2679
2680        ptx = local->sram + addr;
2681        /* fill in the mac header */
2682        writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2683        writeb(0, &ptx->mac.frame_ctl_2);
2684
2685        memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2686        memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2687        memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2688
2689        /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2690        memset_io(ptx->var, 0, 6);
2691        writeb(auth_type & 0xff, ptx->var + 2);
2692
2693        /* Interrupt the firmware to process the command */
2694        if (interrupt_ecf(local, ccsindex)) {
2695                pr_debug(
2696                      "ray_cs send authentication request failed - ECF not ready for intr\n");
2697                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2698                return -1;
2699        }
2700        return 0;
2701} /* End build_auth_frame */
2702
2703/*===========================================================================*/
2704#ifdef CONFIG_PROC_FS
2705static ssize_t ray_cs_essid_proc_write(struct file *file,
2706                const char __user *buffer, size_t count, loff_t *pos)
2707{
2708        static char proc_essid[33];
2709        unsigned int len = count;
2710
2711        if (len > 32)
2712                len = 32;
2713        memset(proc_essid, 0, 33);
2714        if (copy_from_user(proc_essid, buffer, len))
2715                return -EFAULT;
2716        essid = proc_essid;
2717        return count;
2718}
2719
2720static const struct file_operations ray_cs_essid_proc_fops = {
2721        .owner          = THIS_MODULE,
2722        .write          = ray_cs_essid_proc_write,
2723        .llseek         = noop_llseek,
2724};
2725
2726static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2727                              size_t count, loff_t *pos)
2728{
2729        static char proc_number[10];
2730        char *p;
2731        int nr, len;
2732
2733        if (!count)
2734                return 0;
2735
2736        if (count > 9)
2737                return -EINVAL;
2738        if (copy_from_user(proc_number, buffer, count))
2739                return -EFAULT;
2740        p = proc_number;
2741        nr = 0;
2742        len = count;
2743        do {
2744                unsigned int c = *p - '0';
2745                if (c > 9)
2746                        return -EINVAL;
2747                nr = nr * 10 + c;
2748                p++;
2749        } while (--len);
2750        *(int *)PDE_DATA(file_inode(file)) = nr;
2751        return count;
2752}
2753
2754static const struct file_operations int_proc_fops = {
2755        .owner          = THIS_MODULE,
2756        .write          = int_proc_write,
2757        .llseek         = noop_llseek,
2758};
2759#endif
2760
2761static const struct pcmcia_device_id ray_ids[] = {
2762        PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2763        PCMCIA_DEVICE_NULL,
2764};
2765
2766MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2767
2768static struct pcmcia_driver ray_driver = {
2769        .owner = THIS_MODULE,
2770        .name = "ray_cs",
2771        .probe = ray_probe,
2772        .remove = ray_detach,
2773        .id_table = ray_ids,
2774        .suspend = ray_suspend,
2775        .resume = ray_resume,
2776};
2777
2778static int __init init_ray_cs(void)
2779{
2780        int rc;
2781
2782        pr_debug("%s\n", rcsid);
2783        rc = pcmcia_register_driver(&ray_driver);
2784        pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2785              rc);
2786        if (rc)
2787                return rc;
2788
2789#ifdef CONFIG_PROC_FS
2790        proc_mkdir("driver/ray_cs", NULL);
2791
2792        proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show);
2793        proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_fops);
2794        proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_fops,
2795                         &net_type);
2796        proc_create_data("driver/ray_cs/translate", 0200, NULL, &int_proc_fops,
2797                         &translate);
2798#endif
2799        if (translate != 0)
2800                translate = 1;
2801        return 0;
2802} /* init_ray_cs */
2803
2804/*===========================================================================*/
2805
2806static void __exit exit_ray_cs(void)
2807{
2808        pr_debug("ray_cs: cleanup_module\n");
2809
2810#ifdef CONFIG_PROC_FS
2811        remove_proc_subtree("driver/ray_cs", NULL);
2812#endif
2813
2814        pcmcia_unregister_driver(&ray_driver);
2815} /* exit_ray_cs */
2816
2817module_init(init_ray_cs);
2818module_exit(exit_ray_cs);
2819
2820/*===========================================================================*/
2821