// SPDX-License-Identifier: GPL-2.0-only
/*=============================================================================
 *
 * A  PCMCIA client driver for the Raylink wireless LAN card.
 * The starting point for this module was the skeleton.c in the
 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
 *
 * Copyright (c) 1998  Corey Thomas (corey@world.std.com)
 *
 * Changes:
 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
 * - reorganize kmallocs in ray_attach, checking all for failure
 *   and releasing the previous allocations if one fails
 *
 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
 *
=============================================================================*/

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/proc_fs.h>
#include <linux/ptrace.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <linux/ioport.h>
#include <linux/skbuff.h>
#include <linux/ieee80211.h>

#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>

#include <linux/wireless.h>
#include <net/iw_handler.h>

#include <asm/io.h>
#include <asm/byteorder.h>
#include <linux/uaccess.h>

/* Warning : these stuff will slow down the driver... */
#define WIRELESS_SPY            /* Enable spying addresses */
/* Definitions we need for spy */
typedef struct iw_statistics iw_stats;
typedef u_char mac_addr[ETH_ALEN];      /* Hardware address */

#include "rayctl.h"
#include "ray_cs.h"


/** Prototypes based on PCMCIA skeleton driver *******************************/
static int ray_config(struct pcmcia_device *link);
static void ray_release(struct pcmcia_device *link);
static void ray_detach(struct pcmcia_device *p_dev);

/***** Prototypes indicated by device structure ******************************/
static int ray_dev_close(struct net_device *dev);
static int ray_dev_config(struct net_device *dev, struct ifmap *map);
static struct net_device_stats *ray_get_stats(struct net_device *dev);
static int ray_dev_init(struct net_device *dev);

static int ray_open(struct net_device *dev);
static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
                                            struct net_device *dev);
static void set_multicast_list(struct net_device *dev);
static void ray_update_multi_list(struct net_device *dev, int all);
static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
                           unsigned char *data, int len);
static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
                             UCHAR msg_type, unsigned char *data);
static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
static iw_stats *ray_get_wireless_stats(struct net_device *dev);
static const struct iw_handler_def ray_handler_def;

/***** Prototypes for raylink functions **************************************/
static void authenticate(ray_dev_t *local);
static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
static void authenticate_timeout(struct timer_list *t);
static int get_free_ccs(ray_dev_t *local);
static int get_free_tx_ccs(ray_dev_t *local);
static void init_startup_params(ray_dev_t *local);
static int parse_addr(char *in_str, UCHAR *out);
static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
static int ray_init(struct net_device *dev);
static int interrupt_ecf(ray_dev_t *local, int ccs);
static void ray_reset(struct net_device *dev);
static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
static void verify_dl_startup(struct timer_list *t);

/* Prototypes for interrpt time functions **********************************/
static irqreturn_t ray_interrupt(int reg, void *dev_id);
static void clear_interrupt(ray_dev_t *local);
static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
                              unsigned int pkt_addr, int rx_len);
static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
                            unsigned int pkt_addr, int rx_len);
static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
                    unsigned int pkt_addr, int rx_len);
static void associate(ray_dev_t *local);

/* Card command functions */
static int dl_startup_params(struct net_device *dev);
static void join_net(struct timer_list *t);
static void start_net(struct timer_list *t);

/*===========================================================================*/
/* Parameters that can be set with 'insmod' */

/* ADHOC=0, Infrastructure=1 */
static int net_type = ADHOC;

/* Hop dwell time in Kus (1024 us units defined by 802.11) */
static int hop_dwell = 128;

/* Beacon period in Kus */
static int beacon_period = 256;

/* power save mode (0 = off, 1 = save power) */
static int psm;

/* String for network's Extended Service Set ID. 32 Characters max */
static char *essid;

/* Default to encapsulation unless translation requested */
static bool translate = true;

static int country = USA;

static int sniffer;

static int bc;

/* 48 bit physical card address if overriding card's real physical
 * address is required.  Since IEEE 802.11 addresses are 48 bits
 * like ethernet, an int can't be used, so a string is used. To
 * allow use of addresses starting with a decimal digit, the first
 * character must be a letter and will be ignored. This letter is
 * followed by up to 12 hex digits which are the address.  If less
 * than 12 digits are used, the address will be left filled with 0's.
 * Note that bit 0 of the first byte is the broadcast bit, and evil
 * things will happen if it is not 0 in a card address.
 */
static char *phy_addr = NULL;

static unsigned int ray_mem_speed = 500;

/* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
static struct pcmcia_device *this_device = NULL;

MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
MODULE_LICENSE("GPL");

module_param(net_type, int, 0);
module_param(hop_dwell, int, 0);
module_param(beacon_period, int, 0);
module_param(psm, int, 0);
module_param(essid, charp, 0);
module_param(translate, bool, 0);
module_param(country, int, 0);
module_param(sniffer, int, 0);
module_param(bc, int, 0);
module_param(phy_addr, charp, 0);
module_param(ray_mem_speed, int, 0);

static const UCHAR b5_default_startup_parms[] = {
        0, 0,                   /* Adhoc station */
        'L', 'I', 'N', 'U', 'X', 0, 0, 0,       /* 32 char ESSID */
        0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0,
        1, 0,                   /* Active scan, CA Mode */
        0, 0, 0, 0, 0, 0,       /* No default MAC addr  */
        0x7f, 0xff,             /* Frag threshold */
        0x00, 0x80,             /* Hop time 128 Kus */
        0x01, 0x00,             /* Beacon period 256 Kus */
        0x01, 0x07, 0xa3,       /* DTIM, retries, ack timeout */
        0x1d, 0x82, 0x4e,       /* SIFS, DIFS, PIFS */
        0x7f, 0xff,             /* RTS threshold */
        0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
        0x05,                   /* assoc resp timeout thresh */
        0x08, 0x02, 0x08,       /* adhoc, infra, super cycle max */
        0,                      /* Promiscuous mode */
        0x0c, 0x0bd,            /* Unique word */
        0x32,                   /* Slot time */
        0xff, 0xff,             /* roam-low snr, low snr count */
        0x05, 0xff,             /* Infra, adhoc missed bcn thresh */
        0x01, 0x0b, 0x4f,       /* USA, hop pattern, hop pat length */
/* b4 - b5 differences start here */
        0x00, 0x3f,             /* CW max */
        0x00, 0x0f,             /* CW min */
        0x04, 0x08,             /* Noise gain, limit offset */
        0x28, 0x28,             /* det rssi, med busy offsets */
        7,                      /* det sync thresh */
        0, 2, 2,                /* test mode, min, max */
        0,                      /* allow broadcast SSID probe resp */
        0, 0,                   /* privacy must start, can join */
        2, 0, 0, 0, 0, 0, 0, 0  /* basic rate set */
};

static const UCHAR b4_default_startup_parms[] = {
        0, 0,                   /* Adhoc station */
        'L', 'I', 'N', 'U', 'X', 0, 0, 0,       /* 32 char ESSID */
        0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0,
        1, 0,                   /* Active scan, CA Mode */
        0, 0, 0, 0, 0, 0,       /* No default MAC addr  */
        0x7f, 0xff,             /* Frag threshold */
        0x02, 0x00,             /* Hop time */
        0x00, 0x01,             /* Beacon period */
        0x01, 0x07, 0xa3,       /* DTIM, retries, ack timeout */
        0x1d, 0x82, 0xce,       /* SIFS, DIFS, PIFS */
        0x7f, 0xff,             /* RTS threshold */
        0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
        0x05,                   /* assoc resp timeout thresh */
        0x04, 0x02, 0x4,        /* adhoc, infra, super cycle max */
        0,                      /* Promiscuous mode */
        0x0c, 0x0bd,            /* Unique word */
        0x4e,                   /* Slot time (TBD seems wrong) */
        0xff, 0xff,             /* roam-low snr, low snr count */
        0x05, 0xff,             /* Infra, adhoc missed bcn thresh */
        0x01, 0x0b, 0x4e,       /* USA, hop pattern, hop pat length */
/* b4 - b5 differences start here */
        0x3f, 0x0f,             /* CW max, min */
        0x04, 0x08,             /* Noise gain, limit offset */
        0x28, 0x28,             /* det rssi, med busy offsets */
        7,                      /* det sync thresh */
        0, 2, 2,                /* test mode, min, max */
        0,                      /* rx/tx delay */
        0, 0, 0, 0, 0, 0,       /* current BSS id */
        0                       /* hop set */
};

/*===========================================================================*/
static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };

static const char hop_pattern_length[] = { 1,
        USA_HOP_MOD, EUROPE_HOP_MOD,
        JAPAN_HOP_MOD, KOREA_HOP_MOD,
        SPAIN_HOP_MOD, FRANCE_HOP_MOD,
        ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
        JAPAN_TEST_HOP_MOD
};

static const char rcsid[] =
    "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";

static const struct net_device_ops ray_netdev_ops = {
        .ndo_init               = ray_dev_init,
        .ndo_open               = ray_open,
        .ndo_stop               = ray_dev_close,
        .ndo_start_xmit         = ray_dev_start_xmit,
        .ndo_set_config         = ray_dev_config,
        .ndo_get_stats          = ray_get_stats,
        .ndo_set_rx_mode        = set_multicast_list,
        .ndo_set_mac_address    = eth_mac_addr,
        .ndo_validate_addr      = eth_validate_addr,
};

static int ray_probe(struct pcmcia_device *p_dev)
{
        ray_dev_t *local;
        struct net_device *dev;

        dev_dbg(&p_dev->dev, "ray_attach()\n");

        /* Allocate space for private device-specific data */
        dev = alloc_etherdev(sizeof(ray_dev_t));
        if (!dev)
                goto fail_alloc_dev;

        local = netdev_priv(dev);
        local->finder = p_dev;

        /* The io structure describes IO port mapping. None used here */
        p_dev->resource[0]->end = 0;
        p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;

        /* General socket configuration */
        p_dev->config_flags |= CONF_ENABLE_IRQ;
        p_dev->config_index = 1;

        p_dev->priv = dev;

        local->finder = p_dev;
        local->card_status = CARD_INSERTED;
        local->authentication_state = UNAUTHENTICATED;
        local->num_multi = 0;
        dev_dbg(&p_dev->dev, "ray_attach p_dev = %p,  dev = %p,  local = %p, intr = %p\n",
              p_dev, dev, local, &ray_interrupt);

        /* Raylink entries in the device structure */
        dev->netdev_ops = &ray_netdev_ops;
        dev->wireless_handlers = &ray_handler_def;
#ifdef WIRELESS_SPY
        local->wireless_data.spy_data = &local->spy_data;
        dev->wireless_data = &local->wireless_data;
#endif /* WIRELESS_SPY */


        dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
        netif_stop_queue(dev);

        timer_setup(&local->timer, NULL, 0);

        this_device = p_dev;
        return ray_config(p_dev);

fail_alloc_dev:
        return -ENOMEM;
} /* ray_attach */

static void ray_detach(struct pcmcia_device *link)
{
        struct net_device *dev;
        ray_dev_t *local;

        dev_dbg(&link->dev, "ray_detach\n");

        this_device = NULL;
        dev = link->priv;

        ray_release(link);

        local = netdev_priv(dev);
        del_timer_sync(&local->timer);

        if (link->priv) {
                unregister_netdev(dev);
                free_netdev(dev);
        }
        dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
} /* ray_detach */

#define MAX_TUPLE_SIZE 128
static int ray_config(struct pcmcia_device *link)
{
        int ret = 0;
        int i;
        struct net_device *dev = (struct net_device *)link->priv;
        ray_dev_t *local = netdev_priv(dev);

        dev_dbg(&link->dev, "ray_config\n");

        /* Determine card type and firmware version */
        printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
               link->prod_id[0] ? link->prod_id[0] : " ",
               link->prod_id[1] ? link->prod_id[1] : " ",
               link->prod_id[2] ? link->prod_id[2] : " ",
               link->prod_id[3] ? link->prod_id[3] : " ");

        /* Now allocate an interrupt line.  Note that this does not
           actually assign a handler to the interrupt.
         */
        ret = pcmcia_request_irq(link, ray_interrupt);
        if (ret)
                goto failed;
        dev->irq = link->irq;

        ret = pcmcia_enable_device(link);
        if (ret)
                goto failed;

/*** Set up 32k window for shared memory (transmit and control) ************/
        link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
        link->resource[2]->start = 0;
        link->resource[2]->end = 0x8000;
        ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
        if (ret)
                goto failed;
        ret = pcmcia_map_mem_page(link, link->resource[2], 0);
        if (ret)
                goto failed;
        local->sram = ioremap(link->resource[2]->start,
                        resource_size(link->resource[2]));
        if (!local->sram)
                goto failed;

/*** Set up 16k window for shared memory (receive buffer) ***************/
        link->resource[3]->flags |=
            WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
        link->resource[3]->start = 0;
        link->resource[3]->end = 0x4000;
        ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
        if (ret)
                goto failed;
        ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
        if (ret)
                goto failed;
        local->rmem = ioremap(link->resource[3]->start,
                        resource_size(link->resource[3]));
        if (!local->rmem)
                goto failed;

/*** Set up window for attribute memory ***********************************/
        link->resource[4]->flags |=
            WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
        link->resource[4]->start = 0;
        link->resource[4]->end = 0x1000;
        ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
        if (ret)
                goto failed;
        ret = pcmcia_map_mem_page(link, link->resource[4], 0);
        if (ret)
                goto failed;
        local->amem = ioremap(link->resource[4]->start,
                        resource_size(link->resource[4]));
        if (!local->amem)
                goto failed;

        dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
        dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
        dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
        if (ray_init(dev) < 0) {
                ray_release(link);
                return -ENODEV;
        }

        SET_NETDEV_DEV(dev, &link->dev);
        i = register_netdev(dev);
        if (i != 0) {
                printk("ray_config register_netdev() failed\n");
                ray_release(link);
                return i;
        }

        printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
               dev->name, dev->irq, dev->dev_addr);

        return 0;

failed:
        ray_release(link);
        return -ENODEV;
} /* ray_config */

static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
{
        return dev->sram + CCS_BASE;
}

static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
{
        /*
         * This looks nonsensical, since there is a separate
         * RCS_BASE. But the difference between a "struct rcs"
         * and a "struct ccs" ends up being in the _index_ off
         * the base, so the base pointer is the same for both
         * ccs/rcs.
         */
        return dev->sram + CCS_BASE;
}

/*===========================================================================*/
static int ray_init(struct net_device *dev)
{
        int i;
        struct ccs __iomem *pccs;
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link = local->finder;
        dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_init - device not present\n");
                return -1;
        }

        local->net_type = net_type;
        local->sta_type = TYPE_STA;

        /* Copy the startup results to local memory */
        memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
                      sizeof(struct startup_res_6));

        /* Check Power up test status and get mac address from card */
        if (local->startup_res.startup_word != 0x80) {
                printk(KERN_INFO "ray_init ERROR card status = %2x\n",
                       local->startup_res.startup_word);
                local->card_status = CARD_INIT_ERROR;
                return -1;
        }

        local->fw_ver = local->startup_res.firmware_version[0];
        local->fw_bld = local->startup_res.firmware_version[1];
        local->fw_var = local->startup_res.firmware_version[2];
        dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
              local->fw_bld);

        local->tib_length = 0x20;
        if ((local->fw_ver == 5) && (local->fw_bld >= 30))
                local->tib_length = local->startup_res.tib_length;
        dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
        /* Initialize CCS's to buffer free state */
        pccs = ccs_base(local);
        for (i = 0; i < NUMBER_OF_CCS; i++) {
                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
        }
        init_startup_params(local);

        /* copy mac address to startup parameters */
        if (!parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
                memcpy(&local->sparm.b4.a_mac_addr,
                       &local->startup_res.station_addr, ADDRLEN);
        }

        clear_interrupt(local); /* Clear any interrupt from the card */
        local->card_status = CARD_AWAITING_PARAM;
        dev_dbg(&link->dev, "ray_init ending\n");
        return 0;
} /* ray_init */

/*===========================================================================*/
/* Download startup parameters to the card and command it to read them       */
static int dl_startup_params(struct net_device *dev)
{
        int ccsindex;
        ray_dev_t *local = netdev_priv(dev);
        struct ccs __iomem *pccs;
        struct pcmcia_device *link = local->finder;

        dev_dbg(&link->dev, "dl_startup_params entered\n");
        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
                return -1;
        }

        /* Copy parameters to host to ECF area */
        if (local->fw_ver == 0x55)
                memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
                            sizeof(struct b4_startup_params));
        else
                memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
                            sizeof(struct b5_startup_params));

        /* Fill in the CCS fields for the ECF */
        if ((ccsindex = get_free_ccs(local)) < 0)
                return -1;
        local->dl_param_ccs = ccsindex;
        pccs = ccs_base(local) + ccsindex;
        writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
        dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
              local->dl_param_ccs);
        /* Interrupt the firmware to process the command */
        if (interrupt_ecf(local, ccsindex)) {
                printk(KERN_INFO "ray dl_startup_params failed - "
                       "ECF not ready for intr\n");
                local->card_status = CARD_DL_PARAM_ERROR;
                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
                return -2;
        }
        local->card_status = CARD_DL_PARAM;
        /* Start kernel timer to wait for dl startup to complete. */
        local->timer.expires = jiffies + HZ / 2;
        local->timer.function = verify_dl_startup;
        add_timer(&local->timer);
        dev_dbg(&link->dev,
              "ray_cs dl_startup_params started timer for verify_dl_startup\n");
        return 0;
} /* dl_startup_params */

/*===========================================================================*/
static void init_startup_params(ray_dev_t *local)
{
        int i;

        if (country > JAPAN_TEST)
                country = USA;
        else if (country < USA)
                country = USA;
        /* structure for hop time and beacon period is defined here using
         * New 802.11D6.1 format.  Card firmware is still using old format
         * until version 6.
         *    Before                    After
         *    a_hop_time ms byte        a_hop_time ms byte
         *    a_hop_time 2s byte        a_hop_time ls byte
         *    a_hop_time ls byte        a_beacon_period ms byte
         *    a_beacon_period           a_beacon_period ls byte
         *
         *    a_hop_time = uS           a_hop_time = KuS
         *    a_beacon_period = hops    a_beacon_period = KuS
         *//* 64ms = 010000 */
        if (local->fw_ver == 0x55) {
                memcpy(&local->sparm.b4, b4_default_startup_parms,
                       sizeof(struct b4_startup_params));
                /* Translate sane kus input values to old build 4/5 format */
                /* i = hop time in uS truncated to 3 bytes */
                i = (hop_dwell * 1024) & 0xffffff;
                local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
                local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
                local->sparm.b4.a_beacon_period[0] = 0;
                local->sparm.b4.a_beacon_period[1] =
                    ((beacon_period / hop_dwell) - 1) & 0xff;
                local->sparm.b4.a_curr_country_code = country;
                local->sparm.b4.a_hop_pattern_length =
                    hop_pattern_length[(int)country] - 1;
                if (bc) {
                        local->sparm.b4.a_ack_timeout = 0x50;
                        local->sparm.b4.a_sifs = 0x3f;
                }
        } else { /* Version 5 uses real kus values */
                memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
                       sizeof(struct b5_startup_params));

                local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
                local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
                local->sparm.b5.a_beacon_period[0] =
                    (beacon_period >> 8) & 0xff;
                local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
                if (psm)
                        local->sparm.b5.a_power_mgt_state = 1;
                local->sparm.b5.a_curr_country_code = country;
                local->sparm.b5.a_hop_pattern_length =
                    hop_pattern_length[(int)country];
        }

        local->sparm.b4.a_network_type = net_type & 0x01;
        local->sparm.b4.a_acting_as_ap_status = TYPE_STA;

        if (essid != NULL)
                strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
} /* init_startup_params */

/*===========================================================================*/
static void verify_dl_startup(struct timer_list *t)
{
        ray_dev_t *local = from_timer(local, t, timer);
        struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
        UCHAR status;
        struct pcmcia_device *link = local->finder;

        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
                return;
        }
#if 0
        {
                int i;
                printk(KERN_DEBUG
                       "verify_dl_startup parameters sent via ccs %d:\n",
                       local->dl_param_ccs);
                for (i = 0; i < sizeof(struct b5_startup_params); i++) {
                        printk(" %2x",
                               (unsigned int)readb(local->sram +
                                                   HOST_TO_ECF_BASE + i));
                }
                printk("\n");
        }
#endif

        status = readb(&pccs->buffer_status);
        if (status != CCS_BUFFER_FREE) {
                printk(KERN_INFO
                       "Download startup params failed.  Status = %d\n",
                       status);
                local->card_status = CARD_DL_PARAM_ERROR;
                return;
        }
        if (local->sparm.b4.a_network_type == ADHOC)
                start_net(&local->timer);
        else
                join_net(&local->timer);
} /* end verify_dl_startup */

/*===========================================================================*/
/* Command card to start a network */
static void start_net(struct timer_list *t)
{
        ray_dev_t *local = from_timer(local, t, timer);
        struct ccs __iomem *pccs;
        int ccsindex;
        struct pcmcia_device *link = local->finder;
        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
                return;
        }
        /* Fill in the CCS fields for the ECF */
        if ((ccsindex = get_free_ccs(local)) < 0)
                return;
        pccs = ccs_base(local) + ccsindex;
        writeb(CCS_START_NETWORK, &pccs->cmd);
        writeb(0, &pccs->var.start_network.update_param);
        /* Interrupt the firmware to process the command */
        if (interrupt_ecf(local, ccsindex)) {
                dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
                return;
        }
        local->card_status = CARD_DOING_ACQ;
} /* end start_net */

/*===========================================================================*/
/* Command card to join a network */
static void join_net(struct timer_list *t)
{
        ray_dev_t *local = from_timer(local, t, timer);

        struct ccs __iomem *pccs;
        int ccsindex;
        struct pcmcia_device *link = local->finder;

        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
                return;
        }
        /* Fill in the CCS fields for the ECF */
        if ((ccsindex = get_free_ccs(local)) < 0)
                return;
        pccs = ccs_base(local) + ccsindex;
        writeb(CCS_JOIN_NETWORK, &pccs->cmd);
        writeb(0, &pccs->var.join_network.update_param);
        writeb(0, &pccs->var.join_network.net_initiated);
        /* Interrupt the firmware to process the command */
        if (interrupt_ecf(local, ccsindex)) {
                dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
                return;
        }
        local->card_status = CARD_DOING_ACQ;
}


static void ray_release(struct pcmcia_device *link)
{
        struct net_device *dev = link->priv;
        ray_dev_t *local = netdev_priv(dev);

        dev_dbg(&link->dev, "ray_release\n");

        del_timer(&local->timer);

        iounmap(local->sram);
        iounmap(local->rmem);
        iounmap(local->amem);
        pcmcia_disable_device(link);

        dev_dbg(&link->dev, "ray_release ending\n");
}

static int ray_suspend(struct pcmcia_device *link)
{
        struct net_device *dev = link->priv;

        if (link->open)
                netif_device_detach(dev);

        return 0;
}

static int ray_resume(struct pcmcia_device *link)
{
        struct net_device *dev = link->priv;

        if (link->open) {
                ray_reset(dev);
                netif_device_attach(dev);
        }

        return 0;
}

/*===========================================================================*/
static int ray_dev_init(struct net_device *dev)
{
#ifdef RAY_IMMEDIATE_INIT
        int i;
#endif /* RAY_IMMEDIATE_INIT */
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link = local->finder;

        dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_dev_init - device not present\n");
                return -1;
        }
#ifdef RAY_IMMEDIATE_INIT
        /* Download startup parameters */
        if ((i = dl_startup_params(dev)) < 0) {
                printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
                       "returns 0x%x\n", i);
                return -1;
        }
#else /* RAY_IMMEDIATE_INIT */
        /* Postpone the card init so that we can still configure the card,
         * for example using the Wireless Extensions. The init will happen
         * in ray_open() - Jean II */
        dev_dbg(&link->dev,
              "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
              local->card_status);
#endif /* RAY_IMMEDIATE_INIT */

        /* copy mac and broadcast addresses to linux device */
        eth_hw_addr_set(dev, local->sparm.b4.a_mac_addr);
        eth_broadcast_addr(dev->broadcast);

        dev_dbg(&link->dev, "ray_dev_init ending\n");
        return 0;
}

/*===========================================================================*/
static int ray_dev_config(struct net_device *dev, struct ifmap *map)
{
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link = local->finder;
        /* Dummy routine to satisfy device structure */
        dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_dev_config - device not present\n");
                return -1;
        }

        return 0;
}

/*===========================================================================*/
static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
                                            struct net_device *dev)
{
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link = local->finder;
        short length = skb->len;

        if (!pcmcia_dev_present(link)) {
                dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
                dev_kfree_skb(skb);
                return NETDEV_TX_OK;
        }

        dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
        if (local->authentication_state == NEED_TO_AUTH) {
                dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
                if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
                        local->authentication_state = AUTHENTICATED;
                        netif_stop_queue(dev);
                        return NETDEV_TX_BUSY;
                }
        }

        if (length < ETH_ZLEN) {
                if (skb_padto(skb, ETH_ZLEN))
                        return NETDEV_TX_OK;
                length = ETH_ZLEN;
        }
        switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
        case XMIT_NO_CCS:
        case XMIT_NEED_AUTH:
                netif_stop_queue(dev);
                return NETDEV_TX_BUSY;
        case XMIT_NO_INTR:
        case XMIT_MSG_BAD:
        case XMIT_OK:
        default:
                dev_kfree_skb(skb);
        }

        return NETDEV_TX_OK;
} /* ray_dev_start_xmit */

/*===========================================================================*/
static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
                       UCHAR msg_type)
{
        ray_dev_t *local = netdev_priv(dev);
        struct ccs __iomem *pccs;
        int ccsindex;
        int offset;
        struct tx_msg __iomem *ptx;     /* Address of xmit buffer in PC space */
        short int addr;         /* Address of xmit buffer in card space */

        pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
        if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
                printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
                       len);
                return XMIT_MSG_BAD;
        }
        switch (ccsindex = get_free_tx_ccs(local)) {
        case ECCSBUSY:
                pr_debug("ray_hw_xmit tx_ccs table busy\n");
                fallthrough;
        case ECCSFULL:
                pr_debug("ray_hw_xmit No free tx ccs\n");
                fallthrough;
        case ECARDGONE:
                netif_stop_queue(dev);
                return XMIT_NO_CCS;
        default:
                break;
        }
        addr = TX_BUF_BASE + (ccsindex << 11);

        if (msg_type == DATA_TYPE) {
                local->stats.tx_bytes += len;
                local->stats.tx_packets++;
        }

        ptx = local->sram + addr;

        ray_build_header(local, ptx, msg_type, data);
        if (translate) {
                offset = translate_frame(local, ptx, data, len);
        } else { /* Encapsulate frame */
                /* TBD TIB length will move address of ptx->var */
                memcpy_toio(&ptx->var, data, len);
                offset = 0;
        }

        /* fill in the CCS */
        pccs = ccs_base(local) + ccsindex;
        len += TX_HEADER_LENGTH + offset;
        writeb(CCS_TX_REQUEST, &pccs->cmd);
        writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
        writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
        writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
        writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
/* TBD still need psm_cam? */
        writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
        writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
        writeb(0, &pccs->var.tx_request.antenna);
        pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
              local->net_default_tx_rate);

        /* Interrupt the firmware to process the command */
        if (interrupt_ecf(local, ccsindex)) {
                pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
/* TBD very inefficient to copy packet to buffer, and then not
   send it, but the alternative is to queue the messages and that
   won't be done for a while.  Maybe set tbusy until a CCS is free?
*/
                writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
                return XMIT_NO_INTR;
        }
        return XMIT_OK;
} /* end ray_hw_xmit */

/*===========================================================================*/
static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
                           unsigned char *data, int len)
{
        __be16 proto = ((struct ethhdr *)data)->h_proto;
        if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
                pr_debug("ray_cs translate_frame DIX II\n");
                /* Copy LLC header to card buffer */
                memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
                memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
                            (UCHAR *) &proto, 2);
                if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
                        /* This is the selective translation table, only 2 entries */
                        writeb(0xf8,
                               &((struct snaphdr_t __iomem *)ptx->var)->org[2]);
                }
                /* Copy body of ethernet packet without ethernet header */
                memcpy_toio((void __iomem *)&ptx->var +
                            sizeof(struct snaphdr_t), data + ETH_HLEN,
                            len - ETH_HLEN);
                return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
        } else { /* already  802 type, and proto is length */
                pr_debug("ray_cs translate_frame 802\n");
                if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
                        pr_debug("ray_cs translate_frame evil IPX\n");
                        memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
                        return 0 - ETH_HLEN;
                }
                memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
                return 0 - ETH_HLEN;
        }
        /* TBD do other frame types */
} /* end translate_frame */

/*===========================================================================*/
static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
                             UCHAR msg_type, unsigned char *data)
{
        writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
/*** IEEE 802.11 Address field assignments *************
                TODS    FROMDS  addr_1          addr_2          addr_3  addr_4
Adhoc           0       0       dest            src (terminal)  BSSID   N/A
AP to Terminal  0       1       dest            AP(BSSID)       source  N/A
Terminal to AP  1       0       AP(BSSID)       src (terminal)  dest    N/A
AP to AP        1       1       dest AP         src AP          dest    source
*******************************************************/
        if (local->net_type == ADHOC) {
                writeb(0, &ptx->mac.frame_ctl_2);
                memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
                            ADDRLEN);
                memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source,
                            ADDRLEN);
                memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
        } else { /* infrastructure */

                if (local->sparm.b4.a_acting_as_ap_status) {
                        writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
                        memcpy_toio(ptx->mac.addr_1,
                                    ((struct ethhdr *)data)->h_dest, ADDRLEN);

                        memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
                        memcpy_toio(ptx->mac.addr_3,
                                    ((struct ethhdr *)data)->h_source, ADDRLEN);
                } else { /* Terminal */

                        writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
                        memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
                        memcpy_toio(ptx->mac.addr_2,
                                    ((struct ethhdr *)data)->h_source, ADDRLEN);
                        memcpy_toio(ptx->mac.addr_3,
                                    ((struct ethhdr *)data)->h_dest, ADDRLEN);
                }
        }
} /* end encapsulate_frame */

/*====================================================================*/

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get protocol name
 */
static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        strcpy(wrqu->name, "IEEE 802.11-FH");
        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set frequency
 */
static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);
        int err = -EINPROGRESS; /* Call commit handler */

        /* Reject if card is already initialised */
        if (local->card_status != CARD_AWAITING_PARAM)
                return -EBUSY;

        /* Setting by channel number */
        if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
                err = -EOPNOTSUPP;
        else
                local->sparm.b5.a_hop_pattern = wrqu->freq.m;

        return err;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get frequency
 */
static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);

        wrqu->freq.m = local->sparm.b5.a_hop_pattern;
        wrqu->freq.e = 0;
        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set ESSID
 */
static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
                         union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);

        /* Reject if card is already initialised */
        if (local->card_status != CARD_AWAITING_PARAM)
                return -EBUSY;

        /* Check if we asked for `any' */
        if (wrqu->essid.flags == 0)
                /* Corey : can you do that ? */
                return -EOPNOTSUPP;

        /* Check the size of the string */
        if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
                return -E2BIG;

        /* Set the ESSID in the card */
        memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
        memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);

        return -EINPROGRESS;    /* Call commit handler */
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get ESSID
 */
static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
                         union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);
        UCHAR tmp[IW_ESSID_MAX_SIZE + 1];

        /* Get the essid that was set */
        memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
        memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
        tmp[IW_ESSID_MAX_SIZE] = '\0';

        /* Push it out ! */
        wrqu->essid.length = strlen(tmp);
        wrqu->essid.flags = 1;  /* active */

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get AP address
 */
static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
                       union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);

        memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
        wrqu->ap_addr.sa_family = ARPHRD_ETHER;

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set Bit-Rate
 */
static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);

        /* Reject if card is already initialised */
        if (local->card_status != CARD_AWAITING_PARAM)
                return -EBUSY;

        /* Check if rate is in range */
        if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
                return -EINVAL;

        /* Hack for 1.5 Mb/s instead of 2 Mb/s */
        if ((local->fw_ver == 0x55) &&  /* Please check */
            (wrqu->bitrate.value == 2000000))
                local->net_default_tx_rate = 3;
        else
                local->net_default_tx_rate = wrqu->bitrate.value / 500000;

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get Bit-Rate
 */
static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);

        if (local->net_default_tx_rate == 3)
                wrqu->bitrate.value = 2000000;  /* Hum... */
        else
                wrqu->bitrate.value = local->net_default_tx_rate * 500000;
        wrqu->bitrate.fixed = 0;        /* We are in auto mode */

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set RTS threshold
 */
static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
                       union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);
        int rthr = wrqu->rts.value;

        /* Reject if card is already initialised */
        if (local->card_status != CARD_AWAITING_PARAM)
                return -EBUSY;

        /* if(wrq->u.rts.fixed == 0) we should complain */
        if (wrqu->rts.disabled)
                rthr = 32767;
        else {
                if ((rthr < 0) || (rthr > 2347))   /* What's the max packet size ??? */
                        return -EINVAL;
        }
        local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
        local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;

        return -EINPROGRESS;    /* Call commit handler */
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get RTS threshold
 */
static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
                       union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);

        wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
            + local->sparm.b5.a_rts_threshold[1];
        wrqu->rts.disabled = (wrqu->rts.value == 32767);
        wrqu->rts.fixed = 1;

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set Fragmentation threshold
 */
static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);
        int fthr = wrqu->frag.value;

        /* Reject if card is already initialised */
        if (local->card_status != CARD_AWAITING_PARAM)
                return -EBUSY;

        /* if(wrq->u.frag.fixed == 0) should complain */
        if (wrqu->frag.disabled)
                fthr = 32767;
        else {
                if ((fthr < 256) || (fthr > 2347))      /* To check out ! */
                        return -EINVAL;
        }
        local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
        local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;

        return -EINPROGRESS;    /* Call commit handler */
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get Fragmentation threshold
 */
static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);

        wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
            + local->sparm.b5.a_frag_threshold[1];
        wrqu->frag.disabled = (wrqu->frag.value == 32767);
        wrqu->frag.fixed = 1;

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : set Mode of Operation
 */
static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);
        int err = -EINPROGRESS; /* Call commit handler */
        char card_mode = 1;

        /* Reject if card is already initialised */
        if (local->card_status != CARD_AWAITING_PARAM)
                return -EBUSY;

        switch (wrqu->mode) {
        case IW_MODE_ADHOC:
                card_mode = 0;
                fallthrough;
        case IW_MODE_INFRA:
                local->sparm.b5.a_network_type = card_mode;
                break;
        default:
                err = -EINVAL;
        }

        return err;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get Mode of Operation
 */
static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
                        union iwreq_data *wrqu, char *extra)
{
        ray_dev_t *local = netdev_priv(dev);

        if (local->sparm.b5.a_network_type)
                wrqu->mode = IW_MODE_INFRA;
        else
                wrqu->mode = IW_MODE_ADHOC;

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Handler : get range info
 */
static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
                         union iwreq_data *wrqu, char *extra)
{
        struct iw_range *range = (struct iw_range *)extra;

        memset(range, 0, sizeof(struct iw_range));

        /* Set the length (very important for backward compatibility) */
        wrqu->data.length = sizeof(struct iw_range);

        /* Set the Wireless Extension versions */
        range->we_version_compiled = WIRELESS_EXT;
        range->we_version_source = 9;

        /* Set information in the range struct */
        range->throughput = 1.1 * 1000 * 1000;  /* Put the right number here */
        range->num_channels = hop_pattern_length[(int)country];
        range->num_frequency = 0;
        range->max_qual.qual = 0;
        range->max_qual.level = 255;    /* What's the correct value ? */
        range->max_qual.noise = 255;    /* Idem */
        range->num_bitrates = 2;
        range->bitrate[0] = 1000000;    /* 1 Mb/s */
        range->bitrate[1] = 2000000;    /* 2 Mb/s */
        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Private Handler : set framing mode
 */
static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
                           union iwreq_data *wrqu, char *extra)
{
        translate = !!*(extra); /* Set framing mode */

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Private Handler : get framing mode
 */
static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
                           union iwreq_data *wrqu, char *extra)
{
        *(extra) = translate;

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Wireless Private Handler : get country
 */
static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
                           union iwreq_data *wrqu, char *extra)
{
        *(extra) = country;

        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Commit handler : called after a bunch of SET operations
 */
static int ray_commit(struct net_device *dev, struct iw_request_info *info,
                      union iwreq_data *wrqu, char *extra)
{
        return 0;
}

/*------------------------------------------------------------------*/
/*
 * Stats handler : return Wireless Stats
 */
static iw_stats *ray_get_wireless_stats(struct net_device *dev)
{
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link = local->finder;
        struct status __iomem *p = local->sram + STATUS_BASE;

        local->wstats.status = local->card_status;
#ifdef WIRELESS_SPY
        if ((local->spy_data.spy_number > 0)
            && (local->sparm.b5.a_network_type == 0)) {
                /* Get it from the first node in spy list */
                local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
                local->wstats.qual.level = local->spy_data.spy_stat[0].level;
                local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
                local->wstats.qual.updated =
                    local->spy_data.spy_stat[0].updated;
        }
#endif /* WIRELESS_SPY */

        if (pcmcia_dev_present(link)) {
                local->wstats.qual.noise = readb(&p->rxnoise);
                local->wstats.qual.updated |= 4;
        }

        return &local->wstats;
} /* end ray_get_wireless_stats */

/*------------------------------------------------------------------*/
/*
 * Structures to export the Wireless Handlers
 */

static const iw_handler ray_handler[] = {
        IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
        IW_HANDLER(SIOCGIWNAME, ray_get_name),
        IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
        IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
        IW_HANDLER(SIOCSIWMODE, ray_set_mode),
        IW_HANDLER(SIOCGIWMODE, ray_get_mode),
        IW_HANDLER(SIOCGIWRANGE, ray_get_range),
#ifdef WIRELESS_SPY
        IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
        IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
        IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
        IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
#endif /* WIRELESS_SPY */
        IW_HANDLER(SIOCGIWAP, ray_get_wap),
        IW_HANDLER(SIOCSIWESSID, ray_set_essid),
        IW_HANDLER(SIOCGIWESSID, ray_get_essid),
        IW_HANDLER(SIOCSIWRATE, ray_set_rate),
        IW_HANDLER(SIOCGIWRATE, ray_get_rate),
        IW_HANDLER(SIOCSIWRTS, ray_set_rts),
        IW_HANDLER(SIOCGIWRTS, ray_get_rts),
        IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
        IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
};

#define SIOCSIPFRAMING  SIOCIWFIRSTPRIV /* Set framing mode */
#define SIOCGIPFRAMING  SIOCIWFIRSTPRIV + 1     /* Get framing mode */
#define SIOCGIPCOUNTRY  SIOCIWFIRSTPRIV + 3     /* Get country code */

static const iw_handler ray_private_handler[] = {
        [0] = ray_set_framing,
        [1] = ray_get_framing,
        [3] = ray_get_country,
};

static const struct iw_priv_args ray_private_args[] = {
/* cmd,         set_args,       get_args,       name */
        {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
         "set_framing"},
        {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
         "get_framing"},
        {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
         "get_country"},
};

static const struct iw_handler_def ray_handler_def = {
        .num_standard = ARRAY_SIZE(ray_handler),
        .num_private = ARRAY_SIZE(ray_private_handler),
        .num_private_args = ARRAY_SIZE(ray_private_args),
        .standard = ray_handler,
        .private = ray_private_handler,
        .private_args = ray_private_args,
        .get_wireless_stats = ray_get_wireless_stats,
};

/*===========================================================================*/
static int ray_open(struct net_device *dev)
{
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link;
        link = local->finder;

        dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);

        if (link->open == 0)
                local->num_multi = 0;
        link->open++;

        /* If the card is not started, time to start it ! - Jean II */
        if (local->card_status == CARD_AWAITING_PARAM) {
                int i;

                dev_dbg(&link->dev, "ray_open: doing init now !\n");

                /* Download startup parameters */
                if ((i = dl_startup_params(dev)) < 0) {
                        printk(KERN_INFO
                               "ray_dev_init dl_startup_params failed - "
                               "returns 0x%x\n", i);
                        return -1;
                }
        }

        if (sniffer)
                netif_stop_queue(dev);
        else
                netif_start_queue(dev);

        dev_dbg(&link->dev, "ray_open ending\n");
        return 0;
} /* end ray_open */

/*===========================================================================*/
static int ray_dev_close(struct net_device *dev)
{
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link;
        link = local->finder;

        dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);

        link->open--;
        netif_stop_queue(dev);

        /* In here, we should stop the hardware (stop card from beeing active)
         * and set local->card_status to CARD_AWAITING_PARAM, so that while the
         * card is closed we can chage its configuration.
         * Probably also need a COR reset to get sane state - Jean II */

        return 0;
} /* end ray_dev_close */

/*===========================================================================*/
static void ray_reset(struct net_device *dev)
{
        pr_debug("ray_reset entered\n");
}

/*===========================================================================*/
/* Cause a firmware interrupt if it is ready for one                         */
/* Return nonzero if not ready                                               */
static int interrupt_ecf(ray_dev_t *local, int ccs)
{
        int i = 50;
        struct pcmcia_device *link = local->finder;

        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
                return -1;
        }
        dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);

        while (i &&
               (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
                ECF_INTR_SET))
                i--;
        if (i == 0) {
                dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
                return -1;
        }
        /* Fill the mailbox, then kick the card */
        writeb(ccs, local->sram + SCB_BASE);
        writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
        return 0;
} /* interrupt_ecf */

/*===========================================================================*/
/* Get next free transmit CCS                                                */
/* Return - index of current tx ccs                                          */
static int get_free_tx_ccs(ray_dev_t *local)
{
        int i;
        struct ccs __iomem *pccs = ccs_base(local);
        struct pcmcia_device *link = local->finder;

        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
                return ECARDGONE;
        }

        if (test_and_set_bit(0, &local->tx_ccs_lock)) {
                dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
                return ECCSBUSY;
        }

        for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
                if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
                        writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
                        writeb(CCS_END_LIST, &(pccs + i)->link);
                        local->tx_ccs_lock = 0;
                        return i;
                }
        }
        local->tx_ccs_lock = 0;
        dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
        return ECCSFULL;
} /* get_free_tx_ccs */

/*===========================================================================*/
/* Get next free CCS                                                         */
/* Return - index of current ccs                                             */
static int get_free_ccs(ray_dev_t *local)
{
        int i;
        struct ccs __iomem *pccs = ccs_base(local);
        struct pcmcia_device *link = local->finder;

        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
                return ECARDGONE;
        }
        if (test_and_set_bit(0, &local->ccs_lock)) {
                dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
                return ECCSBUSY;
        }

        for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
                if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
                        writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
                        writeb(CCS_END_LIST, &(pccs + i)->link);
                        local->ccs_lock = 0;
                        return i;
                }
        }
        local->ccs_lock = 0;
        dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
        return ECCSFULL;
} /* get_free_ccs */

/*===========================================================================*/
static void authenticate_timeout(struct timer_list *t)
{
        ray_dev_t *local = from_timer(local, t, timer);
        del_timer(&local->timer);
        printk(KERN_INFO "ray_cs Authentication with access point failed"
               " - timeout\n");
        join_net(&local->timer);
}

/*===========================================================================*/
static int parse_addr(char *in_str, UCHAR *out)
{
        int len;
        int i, j, k;
        int status;

        if (in_str == NULL)
                return 0;
        if ((len = strlen(in_str)) < 2)
                return 0;
        memset(out, 0, ADDRLEN);

        status = 1;
        j = len - 1;
        if (j > 12)
                j = 12;
        i = 5;

        while (j > 0) {
                if ((k = hex_to_bin(in_str[j--])) != -1)
                        out[i] = k;
                else
                        return 0;

                if (j == 0)
                        break;
                if ((k = hex_to_bin(in_str[j--])) != -1)
                        out[i] += k << 4;
                else
                        return 0;
                if (!i--)
                        break;
        }
        return status;
}

/*===========================================================================*/
static struct net_device_stats *ray_get_stats(struct net_device *dev)
{
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link = local->finder;
        struct status __iomem *p = local->sram + STATUS_BASE;
        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
                return &local->stats;
        }
        if (readb(&p->mrx_overflow_for_host)) {
                local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
                writeb(0, &p->mrx_overflow);
                writeb(0, &p->mrx_overflow_for_host);
        }
        if (readb(&p->mrx_checksum_error_for_host)) {
                local->stats.rx_crc_errors +=
                    swab16(readw(&p->mrx_checksum_error));
                writeb(0, &p->mrx_checksum_error);
                writeb(0, &p->mrx_checksum_error_for_host);
        }
        if (readb(&p->rx_hec_error_for_host)) {
                local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
                writeb(0, &p->rx_hec_error);
                writeb(0, &p->rx_hec_error_for_host);
        }
        return &local->stats;
}

/*===========================================================================*/
static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
                            int len)
{
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link = local->finder;
        int ccsindex;
        int i;
        struct ccs __iomem *pccs;

        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_update_parm - device not present\n");
                return;
        }

        if ((ccsindex = get_free_ccs(local)) < 0) {
                dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
                return;
        }
        pccs = ccs_base(local) + ccsindex;
        writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
        writeb(objid, &pccs->var.update_param.object_id);
        writeb(1, &pccs->var.update_param.number_objects);
        writeb(0, &pccs->var.update_param.failure_cause);
        for (i = 0; i < len; i++) {
                writeb(value[i], local->sram + HOST_TO_ECF_BASE);
        }
        /* Interrupt the firmware to process the command */
        if (interrupt_ecf(local, ccsindex)) {
                dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
        }
}

/*===========================================================================*/
static void ray_update_multi_list(struct net_device *dev, int all)
{
        int ccsindex;
        struct ccs __iomem *pccs;
        ray_dev_t *local = netdev_priv(dev);
        struct pcmcia_device *link = local->finder;
        void __iomem *p = local->sram + HOST_TO_ECF_BASE;

        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
                return;
        } else
                dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
        if ((ccsindex = get_free_ccs(local)) < 0) {
                dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
                return;
        }
        pccs = ccs_base(local) + ccsindex;
        writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);

        if (all) {
                writeb(0xff, &pccs->var);
                local->num_multi = 0xff;
        } else {
                struct netdev_hw_addr *ha;
                int i = 0;

                /* Copy the kernel's list of MC addresses to card */
                netdev_for_each_mc_addr(ha, dev) {
                        memcpy_toio(p, ha->addr, ETH_ALEN);
                        dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
                                ha->addr);
                        p += ETH_ALEN;
                        i++;
                }
                if (i > 256 / ADDRLEN)
                        i = 256 / ADDRLEN;
                writeb((UCHAR) i, &pccs->var);
                dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
                /* Interrupt the firmware to process the command */
                local->num_multi = i;
        }
        if (interrupt_ecf(local, ccsindex)) {
                dev_dbg(&link->dev,
                      "ray_cs update_multi failed - ECF not ready for intr\n");
                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
        }
} /* end ray_update_multi_list */

/*===========================================================================*/
static void set_multicast_list(struct net_device *dev)
{
        ray_dev_t *local = netdev_priv(dev);
        UCHAR promisc;

        pr_debug("ray_cs set_multicast_list(%p)\n", dev);

        if (dev->flags & IFF_PROMISC) {
                if (local->sparm.b5.a_promiscuous_mode == 0) {
                        pr_debug("ray_cs set_multicast_list promisc on\n");
                        local->sparm.b5.a_promiscuous_mode = 1;
                        promisc = 1;
                        ray_update_parm(dev, OBJID_promiscuous_mode,
                                        &promisc, sizeof(promisc));
                }
        } else {
                if (local->sparm.b5.a_promiscuous_mode == 1) {
                        pr_debug("ray_cs set_multicast_list promisc off\n");
                        local->sparm.b5.a_promiscuous_mode = 0;
                        promisc = 0;
                        ray_update_parm(dev, OBJID_promiscuous_mode,
                                        &promisc, sizeof(promisc));
                }
        }

        if (dev->flags & IFF_ALLMULTI)
                ray_update_multi_list(dev, 1);
        else {
                if (local->num_multi != netdev_mc_count(dev))
                        ray_update_multi_list(dev, 0);
        }
} /* end set_multicast_list */

/*=============================================================================
 * All routines below here are run at interrupt time.
=============================================================================*/
static irqreturn_t ray_interrupt(int irq, void *dev_id)
{
        struct net_device *dev = (struct net_device *)dev_id;
        struct pcmcia_device *link;
        ray_dev_t *local;
        struct ccs __iomem *pccs;
        struct rcs __iomem *prcs;
        UCHAR rcsindex;
        UCHAR tmp;
        UCHAR cmd;
        UCHAR status;
        UCHAR memtmp[ESSID_SIZE + 1];


        if (dev == NULL)        /* Note that we want interrupts with dev->start == 0 */
                return IRQ_NONE;

        pr_debug("ray_cs: interrupt for *dev=%p\n", dev);

        local = netdev_priv(dev);
        link = local->finder;
        if (!pcmcia_dev_present(link)) {
                pr_debug(
                        "ray_cs interrupt from device not present or suspended.\n");
                return IRQ_NONE;
        }
        rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);

        if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
                dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
                clear_interrupt(local);
                return IRQ_HANDLED;
        }
        if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
                pccs = ccs_base(local) + rcsindex;
                cmd = readb(&pccs->cmd);
                status = readb(&pccs->buffer_status);
                switch (cmd) {
                case CCS_DOWNLOAD_STARTUP_PARAMS:       /* Happens in firmware someday */
                        del_timer(&local->timer);
                        if (status == CCS_COMMAND_COMPLETE) {
                                dev_dbg(&link->dev,
                                      "ray_cs interrupt download_startup_parameters OK\n");
                        } else {
                                dev_dbg(&link->dev,
                                      "ray_cs interrupt download_startup_parameters fail\n");
                        }
                        break;
                case CCS_UPDATE_PARAMS:
                        dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
                        if (status != CCS_COMMAND_COMPLETE) {
                                tmp =
                                    readb(&pccs->var.update_param.
                                          failure_cause);
                                dev_dbg(&link->dev,
                                      "ray_cs interrupt update params failed - reason %d\n",
                                      tmp);
                        }
                        break;
                case CCS_REPORT_PARAMS:
                        dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
                        break;
                case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
                        dev_dbg(&link->dev,
                              "ray_cs interrupt CCS Update Multicast List done\n");
                        break;
                case CCS_UPDATE_POWER_SAVINGS_MODE:
                        dev_dbg(&link->dev,
                              "ray_cs interrupt update power save mode done\n");
                        break;
                case CCS_START_NETWORK:
                case CCS_JOIN_NETWORK:
                        memcpy(memtmp, local->sparm.b4.a_current_ess_id,
                                                                ESSID_SIZE);
                        memtmp[ESSID_SIZE] = '\0';

                        if (status == CCS_COMMAND_COMPLETE) {
                                if (readb
                                    (&pccs->var.start_network.net_initiated) ==
                                    1) {
                                        dev_dbg(&link->dev,
                                              "ray_cs interrupt network \"%s\" started\n",
                                              memtmp);
                                } else {
                                        dev_dbg(&link->dev,
                                              "ray_cs interrupt network \"%s\" joined\n",
                                              memtmp);
                                }
                                memcpy_fromio(&local->bss_id,
                                              pccs->var.start_network.bssid,
                                              ADDRLEN);

                                if (local->fw_ver == 0x55)
                                        local->net_default_tx_rate = 3;
                                else
                                        local->net_default_tx_rate =
                                            readb(&pccs->var.start_network.
                                                  net_default_tx_rate);
                                local->encryption =
                                    readb(&pccs->var.start_network.encryption);
                                if (!sniffer && (local->net_type == INFRA)
                                    && !(local->sparm.b4.a_acting_as_ap_status)) {
                                        authenticate(local);
                                }
                                local->card_status = CARD_ACQ_COMPLETE;
                        } else {
                                local->card_status = CARD_ACQ_FAILED;

                                del_timer(&local->timer);
                                local->timer.expires = jiffies + HZ * 5;
                                if (status == CCS_START_NETWORK) {
                                        dev_dbg(&link->dev,
                                              "ray_cs interrupt network \"%s\" start failed\n",
                                              memtmp);
                                        local->timer.function = start_net;
                                } else {
                                        dev_dbg(&link->dev,
                                              "ray_cs interrupt network \"%s\" join failed\n",
                                              memtmp);
                                        local->timer.function = join_net;
                                }
                                add_timer(&local->timer);
                        }
                        break;
                case CCS_START_ASSOCIATION:
                        if (status == CCS_COMMAND_COMPLETE) {
                                local->card_status = CARD_ASSOC_COMPLETE;
                                dev_dbg(&link->dev, "ray_cs association successful\n");
                        } else {
                                dev_dbg(&link->dev, "ray_cs association failed,\n");
                                local->card_status = CARD_ASSOC_FAILED;
                                join_net(&local->timer);
                        }
                        break;
                case CCS_TX_REQUEST:
                        if (status == CCS_COMMAND_COMPLETE) {
                                dev_dbg(&link->dev,
                                      "ray_cs interrupt tx request complete\n");
                        } else {
                                dev_dbg(&link->dev,
                                      "ray_cs interrupt tx request failed\n");
                        }
                        if (!sniffer)
                                netif_start_queue(dev);
                        netif_wake_queue(dev);
                        break;
                case CCS_TEST_MEMORY:
                        dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
                        break;
                case CCS_SHUTDOWN:
                        dev_dbg(&link->dev,
                              "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
                        break;
                case CCS_DUMP_MEMORY:
                        dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
                        break;
                case CCS_START_TIMER:
                        dev_dbg(&link->dev,
                              "ray_cs interrupt DING - raylink timer expired\n");
                        break;
                default:
                        dev_dbg(&link->dev,
                              "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
                              rcsindex, cmd);
                }
                writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
        } else { /* It's an RCS */

                prcs = rcs_base(local) + rcsindex;

                switch (readb(&prcs->interrupt_id)) {

                case PROCESS_RX_PACKET:
                        ray_rx(dev, local, prcs);
                        break;
                case REJOIN_NET_COMPLETE:
                        dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
                        local->card_status = CARD_ACQ_COMPLETE;
                        /* do we need to clear tx buffers CCS's? */
                        if (local->sparm.b4.a_network_type == ADHOC) {
                                if (!sniffer)
                                        netif_start_queue(dev);
                        } else {
                                memcpy_fromio(&local->bss_id,
                                              prcs->var.rejoin_net_complete.
                                              bssid, ADDRLEN);
                                dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
                                        local->bss_id);
                                if (!sniffer)
                                        authenticate(local);
                        }
                        break;
                case ROAMING_INITIATED:
                        dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
                        netif_stop_queue(dev);
                        local->card_status = CARD_DOING_ACQ;
                        break;
                case JAPAN_CALL_SIGN_RXD:
                        dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
                        break;
                default:
                        dev_dbg(&link->dev,
                              "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
                              rcsindex,
                              (unsigned int)readb(&prcs->interrupt_id));
                        break;
                }
                writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
        }
        clear_interrupt(local);
        return IRQ_HANDLED;
} /* ray_interrupt */

/*===========================================================================*/
static void ray_rx(struct net_device *dev, ray_dev_t *local,
                   struct rcs __iomem *prcs)
{
        int rx_len;
        unsigned int pkt_addr;
        void __iomem *pmsg;
        pr_debug("ray_rx process rx packet\n");

        /* Calculate address of packet within Rx buffer */
        pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
                    + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
        /* Length of first packet fragment */
        rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
            + readb(&prcs->var.rx_packet.rx_data_length[1]);

        local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
        pmsg = local->rmem + pkt_addr;
        switch (readb(pmsg)) {
        case DATA_TYPE:
                pr_debug("ray_rx data type\n");
                rx_data(dev, prcs, pkt_addr, rx_len);
                break;
        case AUTHENTIC_TYPE:
                pr_debug("ray_rx authentic type\n");
                if (sniffer)
                        rx_data(dev, prcs, pkt_addr, rx_len);
                else
                        rx_authenticate(local, prcs, pkt_addr, rx_len);
                break;
        case DEAUTHENTIC_TYPE:
                pr_debug("ray_rx deauth type\n");
                if (sniffer)
                        rx_data(dev, prcs, pkt_addr, rx_len);
                else
                        rx_deauthenticate(local, prcs, pkt_addr, rx_len);
                break;
        case NULL_MSG_TYPE:
                pr_debug("ray_cs rx NULL msg\n");
                break;
        case BEACON_TYPE:
                pr_debug("ray_rx beacon type\n");
                if (sniffer)
                        rx_data(dev, prcs, pkt_addr, rx_len);

                copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
                                  rx_len < sizeof(struct beacon_rx) ?
                                  rx_len : sizeof(struct beacon_rx));

                local->beacon_rxed = 1;
                /* Get the statistics so the card counters never overflow */
                ray_get_stats(dev);
                break;
        default:
                pr_debug("ray_cs unknown pkt type %2x\n",
                      (unsigned int)readb(pmsg));
                break;
        }

} /* end ray_rx */

/*===========================================================================*/
static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
                    unsigned int pkt_addr, int rx_len)
{
        struct sk_buff *skb = NULL;
        struct rcs __iomem *prcslink = prcs;
        ray_dev_t *local = netdev_priv(dev);
        UCHAR *rx_ptr;
        int total_len;
        int tmp;
#ifdef WIRELESS_SPY
        int siglev = local->last_rsl;
        u_char linksrcaddr[ETH_ALEN];   /* Other end of the wireless link */
#endif

        if (!sniffer) {
                if (translate) {
/* TBD length needs fixing for translated header */
                        if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
                            rx_len >
                            (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
                             FCS_LEN)) {
                                pr_debug(
                                      "ray_cs invalid packet length %d received\n",
                                      rx_len);
                                return;
                        }
                } else { /* encapsulated ethernet */

                        if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
                            rx_len >
                            (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
                             FCS_LEN)) {
                                pr_debug(
                                      "ray_cs invalid packet length %d received\n",
                                      rx_len);
                                return;
                        }
                }
        }
        pr_debug("ray_cs rx_data packet\n");
        /* If fragmented packet, verify sizes of fragments add up */
        if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
                pr_debug("ray_cs rx'ed fragment\n");
                tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
                    + readb(&prcs->var.rx_packet.totalpacketlength[1]);
                total_len = tmp;
                prcslink = prcs;
                do {
                        tmp -=
                            (readb(&prcslink->var.rx_packet.rx_data_length[0])
                             << 8)
                            + readb(&prcslink->var.rx_packet.rx_data_length[1]);
                        if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
                            == 0xFF || tmp < 0)
                                break;
                        prcslink = rcs_base(local)
                            + readb(&prcslink->link_field);
                } while (1);

                if (tmp < 0) {
                        pr_debug(
                              "ray_cs rx_data fragment lengths don't add up\n");
                        local->stats.rx_dropped++;
                        release_frag_chain(local, prcs);
                        return;
                }
        } else { /* Single unfragmented packet */
                total_len = rx_len;
        }

        skb = dev_alloc_skb(total_len + 5);
        if (skb == NULL) {
                pr_debug("ray_cs rx_data could not allocate skb\n");
                local->stats.rx_dropped++;
                if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
                        release_frag_chain(local, prcs);
                return;
        }
        skb_reserve(skb, 2);    /* Align IP on 16 byte (TBD check this) */

        pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
              rx_len);

/************************/
        /* Reserve enough room for the whole damn packet. */
        rx_ptr = skb_put(skb, total_len);
        /* Copy the whole packet to sk_buff */
        rx_ptr +=
            copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
        /* Get source address */
#ifdef WIRELESS_SPY
        skb_copy_from_linear_data_offset(skb,
                                         offsetof(struct mac_header, addr_2),
                                         linksrcaddr, ETH_ALEN);
#endif
        /* Now, deal with encapsulation/translation/sniffer */
        if (!sniffer) {
                if (!translate) {
                        /* Encapsulated ethernet, so just lop off 802.11 MAC header */
/* TBD reserve            skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
                        skb_pull(skb, RX_MAC_HEADER_LENGTH);
                } else {
                        /* Do translation */
                        untranslate(local, skb, total_len);
                }
        } else { /* sniffer mode, so just pass whole packet */
        }

/************************/
        /* Now pick up the rest of the fragments if any */
        tmp = 17;
        if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
                prcslink = prcs;
                pr_debug("ray_cs rx_data in fragment loop\n");
                do {
                        prcslink = rcs_base(local)
                            +
                            readb(&prcslink->var.rx_packet.next_frag_rcs_index);
                        rx_len =
                            ((readb(&prcslink->var.rx_packet.rx_data_length[0])
                              << 8)
                             +
                             readb(&prcslink->var.rx_packet.rx_data_length[1]))
                            & RX_BUFF_END;
                        pkt_addr =
                            ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
                              8)
                             + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
                            & RX_BUFF_END;

                        rx_ptr +=
                            copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);

                } while (tmp-- &&
                         readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
                         0xFF);
                release_frag_chain(local, prcs);
        }

        skb->protocol = eth_type_trans(skb, dev);
        netif_rx(skb);
        local->stats.rx_packets++;
        local->stats.rx_bytes += total_len;

        /* Gather signal strength per address */
#ifdef WIRELESS_SPY
        /* For the Access Point or the node having started the ad-hoc net
         * note : ad-hoc work only in some specific configurations, but we
         * kludge in ray_get_wireless_stats... */
        if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
                /* Update statistics */
                /*local->wstats.qual.qual = none ? */
                local->wstats.qual.level = siglev;
                /*local->wstats.qual.noise = none ? */
                local->wstats.qual.updated = 0x2;
        }
        /* Now, update the spy stuff */
        {
                struct iw_quality wstats;
                wstats.level = siglev;
                /* wstats.noise = none ? */
                /* wstats.qual = none ? */
                wstats.updated = 0x2;
                /* Update spy records */
                wireless_spy_update(dev, linksrcaddr, &wstats);
        }
#endif /* WIRELESS_SPY */
} /* end rx_data */

/*===========================================================================*/
static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
{
        snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
        struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
        __be16 type = *(__be16 *) psnap->ethertype;
        int delta;
        struct ethhdr *peth;
        UCHAR srcaddr[ADDRLEN];
        UCHAR destaddr[ADDRLEN];
        static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
        static const UCHAR org_1042[3] = { 0, 0, 0 };

        memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
        memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);

#if 0
        if {
                print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
                               DUMP_PREFIX_NONE, 16, 1,
                               skb->data, 64, true);
                printk(KERN_DEBUG
                       "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
                       ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
                       psnap->org[0], psnap->org[1], psnap->org[2]);
                printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
        }
#endif

        if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
                /* not a snap type so leave it alone */
                pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
                      psnap->dsap, psnap->ssap, psnap->ctrl);

                delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
                peth = (struct ethhdr *)(skb->data + delta);
                peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
        } else { /* Its a SNAP */
                if (memcmp(psnap->org, org_bridge, 3) == 0) {
                /* EtherII and nuke the LLC */
                        pr_debug("ray_cs untranslate Bridge encap\n");
                        delta = RX_MAC_HEADER_LENGTH
                            + sizeof(struct snaphdr_t) - ETH_HLEN;
                        peth = (struct ethhdr *)(skb->data + delta);
                        peth->h_proto = type;
                } else if (memcmp(psnap->org, org_1042, 3) == 0) {
                        switch (ntohs(type)) {
                        case ETH_P_IPX:
                        case ETH_P_AARP:
                                pr_debug("ray_cs untranslate RFC IPX/AARP\n");
                                delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
                                peth = (struct ethhdr *)(skb->data + delta);
                                peth->h_proto =
                                    htons(len - RX_MAC_HEADER_LENGTH);
                                break;
                        default:
                                pr_debug("ray_cs untranslate RFC default\n");
                                delta = RX_MAC_HEADER_LENGTH +
                                    sizeof(struct snaphdr_t) - ETH_HLEN;
                                peth = (struct ethhdr *)(skb->data + delta);
                                peth->h_proto = type;
                                break;
                        }
                } else {
                        printk("ray_cs untranslate very confused by packet\n");
                        delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
                        peth = (struct ethhdr *)(skb->data + delta);
                        peth->h_proto = type;
                }
        }
/* TBD reserve  skb_reserve(skb, delta); */
        skb_pull(skb, delta);
        pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
              skb->data);
        memcpy(peth->h_dest, destaddr, ADDRLEN);
        memcpy(peth->h_source, srcaddr, ADDRLEN);
#if 0
        {
                int i;
                printk(KERN_DEBUG "skb->data after untranslate:");
                for (i = 0; i < 64; i++)
                        printk("%02x ", skb->data[i]);
                printk("\n");
        }
#endif
} /* end untranslate */

/*===========================================================================*/
/* Copy data from circular receive buffer to PC memory.
 * dest     = destination address in PC memory
 * pkt_addr = source address in receive buffer
 * len      = length of packet to copy
 */
static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
                             int length)
{
        int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
        if (wrap_bytes <= 0) {
                memcpy_fromio(dest, local->rmem + pkt_addr, length);
        } else { /* Packet wrapped in circular buffer */

                memcpy_fromio(dest, local->rmem + pkt_addr,
                              length - wrap_bytes);
                memcpy_fromio(dest + length - wrap_bytes, local->rmem,
                              wrap_bytes);
        }
        return length;
}

/*===========================================================================*/
static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
{
        struct rcs __iomem *prcslink = prcs;
        int tmp = 17;
        unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);

        while (tmp--) {
                writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
                if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
                        pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
                              rcsindex);
                        break;
                }
                prcslink = rcs_base(local) + rcsindex;
                rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
        }
        writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
}

/*===========================================================================*/
static void authenticate(ray_dev_t *local)
{
        struct pcmcia_device *link = local->finder;
        dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
                return;
        }

        del_timer(&local->timer);
        if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
                local->timer.function = join_net;
        } else {
                local->timer.function = authenticate_timeout;
        }
        local->timer.expires = jiffies + HZ * 2;
        add_timer(&local->timer);
        local->authentication_state = AWAITING_RESPONSE;
} /* end authenticate */

/*===========================================================================*/
static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
                            unsigned int pkt_addr, int rx_len)
{
        UCHAR buff[256];
        struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;

        del_timer(&local->timer);

        copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
        /* if we are trying to get authenticated */
        if (local->sparm.b4.a_network_type == ADHOC) {
                pr_debug("ray_cs rx_auth var= %6ph\n", msg->var);
                if (msg->var[2] == 1) {
                        pr_debug("ray_cs Sending authentication response.\n");
                        if (!build_auth_frame
                            (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
                                local->authentication_state = NEED_TO_AUTH;
                                memcpy(local->auth_id, msg->mac.addr_2,
                                       ADDRLEN);
                        }
                }
        } else { /* Infrastructure network */

                if (local->authentication_state == AWAITING_RESPONSE) {
                        /* Verify authentication sequence #2 and success */
                        if (msg->var[2] == 2) {
                                if ((msg->var[3] | msg->var[4]) == 0) {
                                        pr_debug("Authentication successful\n");
                                        local->card_status = CARD_AUTH_COMPLETE;
                                        associate(local);
                                        local->authentication_state =
                                            AUTHENTICATED;
                                } else {
                                        pr_debug("Authentication refused\n");
                                        local->card_status = CARD_AUTH_REFUSED;
                                        join_net(&local->timer);
                                        local->authentication_state =
                                            UNAUTHENTICATED;
                                }
                        }
                }
        }

} /* end rx_authenticate */

/*===========================================================================*/
static void associate(ray_dev_t *local)
{
        struct ccs __iomem *pccs;
        struct pcmcia_device *link = local->finder;
        struct net_device *dev = link->priv;
        int ccsindex;
        if (!(pcmcia_dev_present(link))) {
                dev_dbg(&link->dev, "ray_cs associate - device not present\n");
                return;
        }
        /* If no tx buffers available, return */
        if ((ccsindex = get_free_ccs(local)) < 0) {
/* TBD should never be here but... what if we are? */
                dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
                return;
        }
        dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
        pccs = ccs_base(local) + ccsindex;
        /* fill in the CCS */
        writeb(CCS_START_ASSOCIATION, &pccs->cmd);
        /* Interrupt the firmware to process the command */
        if (interrupt_ecf(local, ccsindex)) {
                dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);

                del_timer(&local->timer);
                local->timer.expires = jiffies + HZ * 2;
                local->timer.function = join_net;
                add_timer(&local->timer);
                local->card_status = CARD_ASSOC_FAILED;
                return;
        }
        if (!sniffer)
                netif_start_queue(dev);

} /* end associate */

/*===========================================================================*/
static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
                              unsigned int pkt_addr, int rx_len)
{
/*  UCHAR buff[256];
    struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
*/
        pr_debug("Deauthentication frame received\n");
        local->authentication_state = UNAUTHENTICATED;
        /* Need to reauthenticate or rejoin depending on reason code */
/*  copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
 */
}

/*===========================================================================*/
static void clear_interrupt(ray_dev_t *local)
{
        writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
}

/*===========================================================================*/
#ifdef CONFIG_PROC_FS
#define MAXDATA (PAGE_SIZE - 80)

static const char *card_status[] = {
        "Card inserted - uninitialized",        /* 0 */
        "Card not downloaded",                  /* 1 */
        "Waiting for download parameters",      /* 2 */
        "Card doing acquisition",               /* 3 */
        "Acquisition complete",                 /* 4 */
        "Authentication complete",              /* 5 */
        "Association complete",                 /* 6 */
        "???", "???", "???", "???",             /* 7 8 9 10 undefined */
        "Card init error",                      /* 11 */
        "Download parameters error",            /* 12 */
        "???",                                  /* 13 */
        "Acquisition failed",                   /* 14 */
        "Authentication refused",               /* 15 */
        "Association failed"                    /* 16 */
};

static const char *nettype[] = { "Adhoc", "Infra " };
static const char *framing[] = { "Encapsulation", "Translation" }

;
/*===========================================================================*/
static int ray_cs_proc_show(struct seq_file *m, void *v)
{
/* Print current values which are not available via other means
 * eg ifconfig
 */
        int i;
        struct pcmcia_device *link;
        struct net_device *dev;
        ray_dev_t *local;
        UCHAR *p;
        struct freq_hop_element *pfh;
        UCHAR c[33];

        link = this_device;
        if (!link)
                return 0;
        dev = (struct net_device *)link->priv;
        if (!dev)
                return 0;
        local = netdev_priv(dev);
        if (!local)
                return 0;

        seq_puts(m, "Raylink Wireless LAN driver status\n");
        seq_printf(m, "%s\n", rcsid);
        /* build 4 does not report version, and field is 0x55 after memtest */
        seq_puts(m, "Firmware version     = ");
        if (local->fw_ver == 0x55)
                seq_puts(m, "4 - Use dump_cis for more details\n");
        else
                seq_printf(m, "%2d.%02d.%02d\n",
                           local->fw_ver, local->fw_bld, local->fw_var);

        for (i = 0; i < 32; i++)
                c[i] = local->sparm.b5.a_current_ess_id[i];
        c[32] = 0;
        seq_printf(m, "%s network ESSID = \"%s\"\n",
                   nettype[local->sparm.b5.a_network_type], c);

        p = local->bss_id;
        seq_printf(m, "BSSID                = %pM\n", p);

        seq_printf(m, "Country code         = %d\n",
                   local->sparm.b5.a_curr_country_code);

        i = local->card_status;
        if (i < 0)
                i = 10;
        if (i > 16)
                i = 10;
        seq_printf(m, "Card status          = %s\n", card_status[i]);

        seq_printf(m, "Framing mode         = %s\n", framing[translate]);

        seq_printf(m, "Last pkt signal lvl  = %d\n", local->last_rsl);

        if (local->beacon_rxed) {
                /* Pull some fields out of last beacon received */
                seq_printf(m, "Beacon Interval      = %d Kus\n",
                           local->last_bcn.beacon_intvl[0]
                           + 256 * local->last_bcn.beacon_intvl[1]);

                p = local->last_bcn.elements;
                if (p[0] == C_ESSID_ELEMENT_ID)
                        p += p[1] + 2;
                else {
                        seq_printf(m,
                                   "Parse beacon failed at essid element id = %d\n",
                                   p[0]);
                        return 0;
                }

                if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
                        seq_puts(m, "Supported rate codes = ");
                        for (i = 2; i < p[1] + 2; i++)
                                seq_printf(m, "0x%02x ", p[i]);
                        seq_putc(m, '\n');
                        p += p[1] + 2;
                } else {
                        seq_puts(m, "Parse beacon failed at rates element\n");
                        return 0;
                }

                if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
                        pfh = (struct freq_hop_element *)p;
                        seq_printf(m, "Hop dwell            = %d Kus\n",
                                   pfh->dwell_time[0] +
                                   256 * pfh->dwell_time[1]);
                        seq_printf(m, "Hop set              = %d\n",
                                   pfh->hop_set);
                        seq_printf(m, "Hop pattern          = %d\n",
                                   pfh->hop_pattern);
                        seq_printf(m, "Hop index            = %d\n",
                                   pfh->hop_index);
                        p += p[1] + 2;
                } else {
                        seq_puts(m,
                                 "Parse beacon failed at FH param element\n");
                        return 0;
                }
        } else {
                seq_puts(m, "No beacons received\n");
        }
        return 0;
}
#endif
/*===========================================================================*/
static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
{
        int addr;
        struct ccs __iomem *pccs;
        struct tx_msg __iomem *ptx;
        int ccsindex;

        /* If no tx buffers available, return */
        if ((ccsindex = get_free_tx_ccs(local)) < 0) {
                pr_debug("ray_cs send authenticate - No free tx ccs\n");
                return -1;
        }

        pccs = ccs_base(local) + ccsindex;

        /* Address in card space */
        addr = TX_BUF_BASE + (ccsindex << 11);
        /* fill in the CCS */
        writeb(CCS_TX_REQUEST, &pccs->cmd);
        writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
        writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
        writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
        writeb(TX_AUTHENTICATE_LENGTH_LSB,
               pccs->var.tx_request.tx_data_length + 1);
        writeb(0, &pccs->var.tx_request.pow_sav_mode);

        ptx = local->sram + addr;
        /* fill in the mac header */
        writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
        writeb(0, &ptx->mac.frame_ctl_2);

        memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
        memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
        memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);

        /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
        memset_io(ptx->var, 0, 6);
        writeb(auth_type & 0xff, ptx->var + 2);

        /* Interrupt the firmware to process the command */
        if (interrupt_ecf(local, ccsindex)) {
                pr_debug(
                      "ray_cs send authentication request failed - ECF not ready for intr\n");
                writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
                return -1;
        }
        return 0;
} /* End build_auth_frame */

/*===========================================================================*/
#ifdef CONFIG_PROC_FS
static ssize_t ray_cs_essid_proc_write(struct file *file,
                const char __user *buffer, size_t count, loff_t *pos)
{
        static char proc_essid[33];
        unsigned int len = count;

        if (len > 32)
                len = 32;
        memset(proc_essid, 0, 33);
        if (copy_from_user(proc_essid, buffer, len))
                return -EFAULT;
        essid = proc_essid;
        return count;
}

static const struct proc_ops ray_cs_essid_proc_ops = {
        .proc_write     = ray_cs_essid_proc_write,
        .proc_lseek     = noop_llseek,
};

static ssize_t int_proc_write(struct file *file, const char __user *buffer,
                              size_t count, loff_t *pos)
{
        static char proc_number[10];
        char *p;
        int nr, len;

        if (!count)
                return 0;

        if (count > 9)
                return -EINVAL;
        if (copy_from_user(proc_number, buffer, count))
                return -EFAULT;
        p = proc_number;
        nr = 0;
        len = count;
        do {
                unsigned int c = *p - '0';
                if (c > 9)
                        return -EINVAL;
                nr = nr * 10 + c;
                p++;
        } while (--len);
        *(int *)pde_data(file_inode(file)) = nr;
        return count;
}

static const struct proc_ops int_proc_ops = {
        .proc_write     = int_proc_write,
        .proc_lseek     = noop_llseek,
};
#endif

static const struct pcmcia_device_id ray_ids[] = {
        PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
        PCMCIA_DEVICE_NULL,
};

MODULE_DEVICE_TABLE(pcmcia, ray_ids);

static struct pcmcia_driver ray_driver = {
        .owner = THIS_MODULE,
        .name = "ray_cs",
        .probe = ray_probe,
        .remove = ray_detach,
        .id_table = ray_ids,
        .suspend = ray_suspend,
        .resume = ray_resume,
};

static int __init init_ray_cs(void)
{
        int rc;

        pr_debug("%s\n", rcsid);
        rc = pcmcia_register_driver(&ray_driver);
        pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
              rc);
        if (rc)
                return rc;

#ifdef CONFIG_PROC_FS
        proc_mkdir("driver/ray_cs", NULL);

        proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show);
        proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_ops);
        proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_ops,
                         &net_type);
        proc_create_data("driver/ray_cs/translate", 0200, NULL, &int_proc_ops,
                         &translate);
#endif
        translate = !!translate;
        return 0;
} /* init_ray_cs */

/*===========================================================================*/

static void __exit exit_ray_cs(void)
{
        pr_debug("ray_cs: cleanup_module\n");

#ifdef CONFIG_PROC_FS
        remove_proc_subtree("driver/ray_cs", NULL);
#endif

        pcmcia_unregister_driver(&ray_driver);
} /* exit_ray_cs */

module_init(init_ray_cs);
module_exit(exit_ray_cs);

/*===========================================================================*/