hycapi.c

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/* $Id: hycapi.c,v 1.8.6.4 2001/09/23 22:24:54 kai Exp $
 *
 * Linux driver for HYSDN cards, CAPI2.0-Interface.
 *
 * Author    Ulrich Albrecht <[email protected]> for Hypercope GmbH
 * Copyright 2000 by Hypercope GmbH
 *
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */

#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/slab.h>

#define VER_DRIVER  0
#define VER_CARDTYPE    1
#define VER_HWID    2
#define VER_SERIAL  3
#define VER_OPTION  4
#define VER_PROTO   5
#define VER_PROFILE 6
#define VER_CAPI    7

#include "hysdn_defs.h"
#include <linux/kernelcapi.h>

static char hycapi_revision[] = "$Revision: 1.8.6.4 $";

unsigned int hycapi_enable = 0xffffffff;
module_param(hycapi_enable, uint, 0);

typedef struct _hycapi_appl {
    unsigned int ctrl_mask;
    capi_register_params rp;
    struct sk_buff *listen_req[CAPI_MAXCONTR];
} hycapi_appl;

static hycapi_appl hycapi_applications[CAPI_MAXAPPL];

static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);

static inline int _hycapi_appCheck(int app_id, int ctrl_no)
{
    if ((ctrl_no <= 0) || (ctrl_no > CAPI_MAXCONTR) || (app_id <= 0) ||
       (app_id > CAPI_MAXAPPL))
    {
        printk(KERN_ERR "HYCAPI: Invalid request app_id %d for controller %d", app_id, ctrl_no);
        return -1;
    }
    return ((hycapi_applications[app_id - 1].ctrl_mask & (1 << (ctrl_no-1))) != 0);
}

/******************************
Kernel-Capi callback reset_ctr
******************************/

static void
hycapi_reset_ctr(struct capi_ctr *ctrl)
{
    hycapictrl_info *cinfo = ctrl->driverdata;

#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "HYCAPI hycapi_reset_ctr\n");
#endif
    capilib_release(&cinfo->ncci_head);
    capi_ctr_down(ctrl);
}

/******************************
Kernel-Capi callback remove_ctr
******************************/

static void
hycapi_remove_ctr(struct capi_ctr *ctrl)
{
    int i;
    hycapictrl_info *cinfo = NULL;
    hysdn_card *card = NULL;
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "HYCAPI hycapi_remove_ctr\n");
#endif
    cinfo = (hycapictrl_info *)(ctrl->driverdata);
    if (!cinfo) {
        printk(KERN_ERR "No hycapictrl_info set!");
        return;
    }
    card = cinfo->card;
    capi_ctr_suspend_output(ctrl);
    for (i = 0; i < CAPI_MAXAPPL; i++) {
        if (hycapi_applications[i].listen_req[ctrl->cnr - 1]) {
            kfree_skb(hycapi_applications[i].listen_req[ctrl->cnr - 1]);
            hycapi_applications[i].listen_req[ctrl->cnr - 1] = NULL;
        }
    }
    detach_capi_ctr(ctrl);
    ctrl->driverdata = NULL;
    kfree(card->hyctrlinfo);


    card->hyctrlinfo = NULL;
}

/***********************************************************

Queue a CAPI-message to the controller.

***********************************************************/

static void
hycapi_sendmsg_internal(struct capi_ctr *ctrl, struct sk_buff *skb)
{
    hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
    hysdn_card *card = cinfo->card;

    spin_lock_irq(&cinfo->lock);
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_send_message\n");
#endif
    cinfo->skbs[cinfo->in_idx++] = skb; /* add to buffer list */
    if (cinfo->in_idx >= HYSDN_MAX_CAPI_SKB)
        cinfo->in_idx = 0;  /* wrap around */
    cinfo->sk_count++;      /* adjust counter */
    if (cinfo->sk_count >= HYSDN_MAX_CAPI_SKB) {
        /* inform upper layers we're full */
        printk(KERN_ERR "HYSDN Card%d: CAPI-buffer overrun!\n",
               card->myid);
        capi_ctr_suspend_output(ctrl);
    }
    cinfo->tx_skb = skb;
    spin_unlock_irq(&cinfo->lock);
    schedule_work(&card->irq_queue);
}

/***********************************************************
hycapi_register_internal

Send down the CAPI_REGISTER-Command to the controller.
This functions will also be used if the adapter has been rebooted to
re-register any applications in the private list.

************************************************************/

static void
hycapi_register_internal(struct capi_ctr *ctrl, __u16 appl,
             capi_register_params *rp)
{
    char ExtFeatureDefaults[] = "49  /0/0/0/0,*/1,*/2,*/3,*/4,*/5,*/6,*/7,*/8,*/9,*";
    hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
    hysdn_card *card = cinfo->card;
    struct sk_buff *skb;
    __u16 len;
    __u8 _command = 0xa0, _subcommand = 0x80;
    __u16 MessageNumber = 0x0000;
    __u16 MessageBufferSize = 0;
    int slen = strlen(ExtFeatureDefaults);
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_register_appl\n");
#endif
    MessageBufferSize = rp->level3cnt * rp->datablkcnt * rp->datablklen;

    len = CAPI_MSG_BASELEN + 8 + slen + 1;
    if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
        printk(KERN_ERR "HYSDN card%d: memory squeeze in hycapi_register_appl\n",
               card->myid);
        return;
    }
    memcpy(skb_put(skb, sizeof(__u16)), &len, sizeof(__u16));
    memcpy(skb_put(skb, sizeof(__u16)), &appl, sizeof(__u16));
    memcpy(skb_put(skb, sizeof(__u8)), &_command, sizeof(_command));
    memcpy(skb_put(skb, sizeof(__u8)), &_subcommand, sizeof(_subcommand));
    memcpy(skb_put(skb, sizeof(__u16)), &MessageNumber, sizeof(__u16));
    memcpy(skb_put(skb, sizeof(__u16)), &MessageBufferSize, sizeof(__u16));
    memcpy(skb_put(skb, sizeof(__u16)), &(rp->level3cnt), sizeof(__u16));
    memcpy(skb_put(skb, sizeof(__u16)), &(rp->datablkcnt), sizeof(__u16));
    memcpy(skb_put(skb, sizeof(__u16)), &(rp->datablklen), sizeof(__u16));
    memcpy(skb_put(skb, slen), ExtFeatureDefaults, slen);
    hycapi_applications[appl - 1].ctrl_mask |= (1 << (ctrl->cnr - 1));
    hycapi_send_message(ctrl, skb);
}

/************************************************************
hycapi_restart_internal

After an adapter has been rebootet, re-register all applications and
send a LISTEN_REQ (if there has been such a thing )

*************************************************************/

static void hycapi_restart_internal(struct capi_ctr *ctrl)
{
    int i;
    struct sk_buff *skb;
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_WARNING "HYSDN: hycapi_restart_internal");
#endif
    for (i = 0; i < CAPI_MAXAPPL; i++) {
        if (_hycapi_appCheck(i + 1, ctrl->cnr) == 1) {
            hycapi_register_internal(ctrl, i + 1,
                         &hycapi_applications[i].rp);
            if (hycapi_applications[i].listen_req[ctrl->cnr - 1]) {
                skb = skb_copy(hycapi_applications[i].listen_req[ctrl->cnr - 1], GFP_ATOMIC);
                hycapi_sendmsg_internal(ctrl, skb);
            }
        }
    }
}

/*************************************************************
Register an application.
Error-checking is done for CAPI-compliance.

The application is recorded in the internal list.
*************************************************************/

static void
hycapi_register_appl(struct capi_ctr *ctrl, __u16 appl,
             capi_register_params *rp)
{
    int MaxLogicalConnections = 0, MaxBDataBlocks = 0, MaxBDataLen = 0;
    hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
    hysdn_card *card = cinfo->card;
    int chk = _hycapi_appCheck(appl, ctrl->cnr);
    if (chk < 0) {
        return;
    }
    if (chk == 1) {
        printk(KERN_INFO "HYSDN: apl %d already registered\n", appl);
        return;
    }
    MaxBDataBlocks = rp->datablkcnt > CAPI_MAXDATAWINDOW ? CAPI_MAXDATAWINDOW : rp->datablkcnt;
    rp->datablkcnt = MaxBDataBlocks;
    MaxBDataLen = rp->datablklen < 1024 ? 1024 : rp->datablklen;
    rp->datablklen = MaxBDataLen;

    MaxLogicalConnections = rp->level3cnt;
    if (MaxLogicalConnections < 0) {
        MaxLogicalConnections = card->bchans * -MaxLogicalConnections;
    }
    if (MaxLogicalConnections == 0) {
        MaxLogicalConnections = card->bchans;
    }

    rp->level3cnt = MaxLogicalConnections;
    memcpy(&hycapi_applications[appl - 1].rp,
           rp, sizeof(capi_register_params));
}

/*********************************************************************

hycapi_release_internal

Send down a CAPI_RELEASE to the controller.
*********************************************************************/

static void hycapi_release_internal(struct capi_ctr *ctrl, __u16 appl)
{
    hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
    hysdn_card *card = cinfo->card;
    struct sk_buff *skb;
    __u16 len;
    __u8 _command = 0xa1, _subcommand = 0x80;
    __u16 MessageNumber = 0x0000;

    capilib_release_appl(&cinfo->ncci_head, appl);

#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_release_appl\n");
#endif
    len = CAPI_MSG_BASELEN;
    if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
        printk(KERN_ERR "HYSDN card%d: memory squeeze in hycapi_register_appl\n",
               card->myid);
        return;
    }
    memcpy(skb_put(skb, sizeof(__u16)), &len, sizeof(__u16));
    memcpy(skb_put(skb, sizeof(__u16)), &appl, sizeof(__u16));
    memcpy(skb_put(skb, sizeof(__u8)), &_command, sizeof(_command));
    memcpy(skb_put(skb, sizeof(__u8)), &_subcommand, sizeof(_subcommand));
    memcpy(skb_put(skb, sizeof(__u16)), &MessageNumber, sizeof(__u16));
    hycapi_send_message(ctrl, skb);
    hycapi_applications[appl - 1].ctrl_mask &= ~(1 << (ctrl->cnr - 1));
}

/******************************************************************
hycapi_release_appl

Release the application from the internal list an remove it's
registration at controller-level
******************************************************************/

static void
hycapi_release_appl(struct capi_ctr *ctrl, __u16 appl)
{
    int chk;

    chk = _hycapi_appCheck(appl, ctrl->cnr);
    if (chk < 0) {
        printk(KERN_ERR "HYCAPI: Releasing invalid appl %d on controller %d\n", appl, ctrl->cnr);
        return;
    }
    if (hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1]) {
        kfree_skb(hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1]);
        hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1] = NULL;
    }
    if (chk == 1)
    {
        hycapi_release_internal(ctrl, appl);
    }
}


/**************************************************************
Kill a single controller.
**************************************************************/

int hycapi_capi_release(hysdn_card *card)
{
    hycapictrl_info *cinfo = card->hyctrlinfo;
    struct capi_ctr *ctrl;
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_capi_release\n");
#endif
    if (cinfo) {
        ctrl = &cinfo->capi_ctrl;
        hycapi_remove_ctr(ctrl);
    }
    return 0;
}

/**************************************************************
hycapi_capi_stop

Stop CAPI-Output on a card. (e.g. during reboot)
***************************************************************/

int hycapi_capi_stop(hysdn_card *card)
{
    hycapictrl_info *cinfo = card->hyctrlinfo;
    struct capi_ctr *ctrl;
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_capi_stop\n");
#endif
    if (cinfo) {
        ctrl = &cinfo->capi_ctrl;
/*      ctrl->suspend_output(ctrl); */
        capi_ctr_down(ctrl);
    }
    return 0;
}

/***************************************************************
hycapi_send_message

Send a message to the controller.

Messages are parsed for their Command/Subcommand-type, and appropriate
action's are performed.

Note that we have to muck around with a 64Bit-DATA_REQ as there are
firmware-releases that do not check the MsgLen-Indication!

***************************************************************/

static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
{
    __u16 appl_id;
    int _len, _len2;
    __u8 msghead[64];
    hycapictrl_info *cinfo = ctrl->driverdata;
    u16 retval = CAPI_NOERROR;

    appl_id = CAPIMSG_APPID(skb->data);
    switch (_hycapi_appCheck(appl_id, ctrl->cnr))
    {
    case 0:
/*          printk(KERN_INFO "Need to register\n"); */
        hycapi_register_internal(ctrl,
                     appl_id,
                     &(hycapi_applications[appl_id - 1].rp));
        break;
    case 1:
        break;
    default:
        printk(KERN_ERR "HYCAPI: Controller mixup!\n");
        retval = CAPI_ILLAPPNR;
        goto out;
    }
    switch (CAPIMSG_CMD(skb->data)) {
    case CAPI_DISCONNECT_B3_RESP:
        capilib_free_ncci(&cinfo->ncci_head, appl_id,
                  CAPIMSG_NCCI(skb->data));
        break;
    case CAPI_DATA_B3_REQ:
        _len = CAPIMSG_LEN(skb->data);
        if (_len > 22) {
            _len2 = _len - 22;
            skb_copy_from_linear_data(skb, msghead, 22);
            skb_copy_to_linear_data_offset(skb, _len2,
                               msghead, 22);
            skb_pull(skb, _len2);
            CAPIMSG_SETLEN(skb->data, 22);
            retval = capilib_data_b3_req(&cinfo->ncci_head,
                             CAPIMSG_APPID(skb->data),
                             CAPIMSG_NCCI(skb->data),
                             CAPIMSG_MSGID(skb->data));
        }
        break;
    case CAPI_LISTEN_REQ:
        if (hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1])
        {
            kfree_skb(hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1]);
            hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1] = NULL;
        }
        if (!(hycapi_applications[appl_id  -1].listen_req[ctrl->cnr - 1] = skb_copy(skb, GFP_ATOMIC)))
        {
            printk(KERN_ERR "HYSDN: memory squeeze in private_listen\n");
        }
        break;
    default:
        break;
    }
out:
    if (retval == CAPI_NOERROR)
        hycapi_sendmsg_internal(ctrl, skb);
    else
        dev_kfree_skb_any(skb);

    return retval;
}

static int hycapi_proc_show(struct seq_file *m, void *v)
{
    struct capi_ctr *ctrl = m->private;
    hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
    hysdn_card *card = cinfo->card;
    char *s;

    seq_printf(m, "%-16s %s\n", "name", cinfo->cardname);
    seq_printf(m, "%-16s 0x%x\n", "io", card->iobase);
    seq_printf(m, "%-16s %d\n", "irq", card->irq);

    switch (card->brdtype) {
    case BD_PCCARD:  s = "HYSDN Hycard"; break;
    case BD_ERGO: s = "HYSDN Ergo2"; break;
    case BD_METRO: s = "HYSDN Metro4"; break;
    case BD_CHAMP2: s = "HYSDN Champ2"; break;
    case BD_PLEXUS: s = "HYSDN Plexus30"; break;
    default: s = "???"; break;
    }
    seq_printf(m, "%-16s %s\n", "type", s);
    if ((s = cinfo->version[VER_DRIVER]) != NULL)
        seq_printf(m, "%-16s %s\n", "ver_driver", s);
    if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
        seq_printf(m, "%-16s %s\n", "ver_cardtype", s);
    if ((s = cinfo->version[VER_SERIAL]) != NULL)
        seq_printf(m, "%-16s %s\n", "ver_serial", s);

    seq_printf(m, "%-16s %s\n", "cardname", cinfo->cardname);

    return 0;
}

static int hycapi_proc_open(struct inode *inode, struct file *file)
{
    return single_open(file, hycapi_proc_show, PDE(inode)->data);
}

static const struct file_operations hycapi_proc_fops = {
    .owner      = THIS_MODULE,
    .open       = hycapi_proc_open,
    .read       = seq_read,
    .llseek     = seq_lseek,
    .release    = single_release,
};

/**************************************************************
hycapi_load_firmware

This does NOT load any firmware, but the callback somehow is needed
on capi-interface registration.

**************************************************************/

static int hycapi_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
{
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_load_firmware\n");
#endif
    return 0;
}


static char *hycapi_procinfo(struct capi_ctr *ctrl)
{
    hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_proc_info\n");
#endif
    if (!cinfo)
        return "";
    sprintf(cinfo->infobuf, "%s %s 0x%x %d %s",
        cinfo->cardname[0] ? cinfo->cardname : "-",
        cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
        cinfo->card ? cinfo->card->iobase : 0x0,
        cinfo->card ? cinfo->card->irq : 0,
        hycapi_revision
        );
    return cinfo->infobuf;
}

/******************************************************************
hycapi_rx_capipkt

Receive a capi-message.

All B3_DATA_IND are converted to 64K-extension compatible format.
New nccis are created if necessary.
*******************************************************************/

void
hycapi_rx_capipkt(hysdn_card *card, unsigned char *buf, unsigned short len)
{
    struct sk_buff *skb;
    hycapictrl_info *cinfo = card->hyctrlinfo;
    struct capi_ctr *ctrl;
    __u16 ApplId;
    __u16 MsgLen, info;
    __u16 len2, CapiCmd;
    __u32 CP64[2] = {0, 0};
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_rx_capipkt\n");
#endif
    if (!cinfo) {
        return;
    }
    ctrl = &cinfo->capi_ctrl;
    if (len < CAPI_MSG_BASELEN) {
        printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, length %d!\n",
               card->myid, len);
        return;
    }
    MsgLen = CAPIMSG_LEN(buf);
    ApplId = CAPIMSG_APPID(buf);
    CapiCmd = CAPIMSG_CMD(buf);

    if ((CapiCmd == CAPI_DATA_B3_IND) && (MsgLen < 30)) {
        len2 = len + (30 - MsgLen);
        if (!(skb = alloc_skb(len2, GFP_ATOMIC))) {
            printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
                   card->myid);
            return;
        }
        memcpy(skb_put(skb, MsgLen), buf, MsgLen);
        memcpy(skb_put(skb, 2 * sizeof(__u32)), CP64, 2 * sizeof(__u32));
        memcpy(skb_put(skb, len - MsgLen), buf + MsgLen,
               len - MsgLen);
        CAPIMSG_SETLEN(skb->data, 30);
    } else {
        if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
            printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
                   card->myid);
            return;
        }
        memcpy(skb_put(skb, len), buf, len);
    }
    switch (CAPIMSG_CMD(skb->data))
    {
    case CAPI_CONNECT_B3_CONF:
/* Check info-field for error-indication: */
        info = CAPIMSG_U16(skb->data, 12);
        switch (info)
        {
        case 0:
            capilib_new_ncci(&cinfo->ncci_head, ApplId, CAPIMSG_NCCI(skb->data),
                     hycapi_applications[ApplId - 1].rp.datablkcnt);

            break;
        case 0x0001:
            printk(KERN_ERR "HYSDN Card%d: NCPI not supported by current "
                   "protocol. NCPI ignored.\n", card->myid);
            break;
        case 0x2001:
            printk(KERN_ERR "HYSDN Card%d: Message not supported in"
                   " current state\n", card->myid);
            break;
        case 0x2002:
            printk(KERN_ERR "HYSDN Card%d: invalid PLCI\n", card->myid);
            break;
        case 0x2004:
            printk(KERN_ERR "HYSDN Card%d: out of NCCI\n", card->myid);
            break;
        case 0x3008:
            printk(KERN_ERR "HYSDN Card%d: NCPI not supported\n",
                   card->myid);
            break;
        default:
            printk(KERN_ERR "HYSDN Card%d: Info in CONNECT_B3_CONF: %d\n",
                   card->myid, info);
            break;
        }
        break;
    case CAPI_CONNECT_B3_IND:
        capilib_new_ncci(&cinfo->ncci_head, ApplId,
                 CAPIMSG_NCCI(skb->data),
                 hycapi_applications[ApplId - 1].rp.datablkcnt);
        break;
    case CAPI_DATA_B3_CONF:
        capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
                     CAPIMSG_NCCI(skb->data),
                     CAPIMSG_MSGID(skb->data));
        break;
    default:
        break;
    }
    capi_ctr_handle_message(ctrl, ApplId, skb);
}

/******************************************************************
hycapi_tx_capiack

Internally acknowledge a msg sent. This will remove the msg from the
internal queue.

*******************************************************************/

void hycapi_tx_capiack(hysdn_card *card)
{
    hycapictrl_info *cinfo = card->hyctrlinfo;
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_tx_capiack\n");
#endif
    if (!cinfo) {
        return;
    }
    spin_lock_irq(&cinfo->lock);
    kfree_skb(cinfo->skbs[cinfo->out_idx]);     /* free skb */
    cinfo->skbs[cinfo->out_idx++] = NULL;
    if (cinfo->out_idx >= HYSDN_MAX_CAPI_SKB)
        cinfo->out_idx = 0; /* wrap around */

    if (cinfo->sk_count-- == HYSDN_MAX_CAPI_SKB)    /* dec usage count */
        capi_ctr_resume_output(&cinfo->capi_ctrl);
    spin_unlock_irq(&cinfo->lock);
}

/***************************************************************
hycapi_tx_capiget(hysdn_card *card)

This is called when polling for messages to SEND.

****************************************************************/

struct sk_buff *
hycapi_tx_capiget(hysdn_card *card)
{
    hycapictrl_info *cinfo = card->hyctrlinfo;
    if (!cinfo) {
        return (struct sk_buff *)NULL;
    }
    if (!cinfo->sk_count)
        return (struct sk_buff *)NULL;  /* nothing available */

    return (cinfo->skbs[cinfo->out_idx]);       /* next packet to send */
}


/**********************************************************
int hycapi_init()

attach the capi-driver to the kernel-capi.

***********************************************************/

int hycapi_init(void)
{
    int i;
    for (i = 0; i < CAPI_MAXAPPL; i++) {
        memset(&(hycapi_applications[i]), 0, sizeof(hycapi_appl));
    }
    return (0);
}

/**************************************************************
hycapi_cleanup(void)

detach the capi-driver to the kernel-capi. Actually this should
free some more ressources. Do that later.
**************************************************************/

void
hycapi_cleanup(void)
{
}

/********************************************************************
hycapi_capi_create(hysdn_card *card)

Attach the card with its capi-ctrl.
*********************************************************************/

static void hycapi_fill_profile(hysdn_card *card)
{
    hycapictrl_info *cinfo = NULL;
    struct capi_ctr *ctrl = NULL;
    cinfo = card->hyctrlinfo;
    if (!cinfo) return;
    ctrl = &cinfo->capi_ctrl;
    strcpy(ctrl->manu, "Hypercope");
    ctrl->version.majorversion = 2;
    ctrl->version.minorversion = 0;
    ctrl->version.majormanuversion = 3;
    ctrl->version.minormanuversion = 2;
    ctrl->profile.ncontroller = card->myid;
    ctrl->profile.nbchannel = card->bchans;
    ctrl->profile.goptions = GLOBAL_OPTION_INTERNAL_CONTROLLER |
        GLOBAL_OPTION_B_CHANNEL_OPERATION;
    ctrl->profile.support1 =  B1_PROT_64KBIT_HDLC |
        (card->faxchans ? B1_PROT_T30 : 0) |
        B1_PROT_64KBIT_TRANSPARENT;
    ctrl->profile.support2 = B2_PROT_ISO7776 |
        (card->faxchans ? B2_PROT_T30 : 0) |
        B2_PROT_TRANSPARENT;
    ctrl->profile.support3 = B3_PROT_TRANSPARENT |
        B3_PROT_T90NL |
        (card->faxchans ? B3_PROT_T30 : 0) |
        (card->faxchans ? B3_PROT_T30EXT : 0) |
        B3_PROT_ISO8208;
}

int
hycapi_capi_create(hysdn_card *card)
{
    hycapictrl_info *cinfo = NULL;
    struct capi_ctr *ctrl = NULL;
    int retval;
#ifdef HYCAPI_PRINTFNAMES
    printk(KERN_NOTICE "hycapi_capi_create\n");
#endif
    if ((hycapi_enable & (1 << card->myid)) == 0) {
        return 1;
    }
    if (!card->hyctrlinfo) {
        cinfo = kzalloc(sizeof(hycapictrl_info), GFP_ATOMIC);
        if (!cinfo) {
            printk(KERN_WARNING "HYSDN: no memory for capi-ctrl.\n");
            return -ENOMEM;
        }
        card->hyctrlinfo = cinfo;
        cinfo->card = card;
        spin_lock_init(&cinfo->lock);
        INIT_LIST_HEAD(&cinfo->ncci_head);

        switch (card->brdtype) {
        case BD_PCCARD:  strcpy(cinfo->cardname, "HYSDN Hycard"); break;
        case BD_ERGO: strcpy(cinfo->cardname, "HYSDN Ergo2"); break;
        case BD_METRO: strcpy(cinfo->cardname, "HYSDN Metro4"); break;
        case BD_CHAMP2: strcpy(cinfo->cardname, "HYSDN Champ2"); break;
        case BD_PLEXUS: strcpy(cinfo->cardname, "HYSDN Plexus30"); break;
        default: strcpy(cinfo->cardname, "HYSDN ???"); break;
        }

        ctrl = &cinfo->capi_ctrl;
        ctrl->driver_name   = "hycapi";
        ctrl->driverdata    = cinfo;
        ctrl->register_appl = hycapi_register_appl;
        ctrl->release_appl  = hycapi_release_appl;
        ctrl->send_message  = hycapi_send_message;
        ctrl->load_firmware = hycapi_load_firmware;
        ctrl->reset_ctr     = hycapi_reset_ctr;
        ctrl->procinfo      = hycapi_procinfo;
        ctrl->proc_fops = &hycapi_proc_fops;
        strcpy(ctrl->name, cinfo->cardname);
        ctrl->owner = THIS_MODULE;

        retval = attach_capi_ctr(ctrl);
        if (retval) {
            printk(KERN_ERR "hycapi: attach controller failed.\n");
            return -EBUSY;
        }
        /* fill in the blanks: */
        hycapi_fill_profile(card);
        capi_ctr_ready(ctrl);
    } else {
        /* resume output on stopped ctrl */
        ctrl = &card->hyctrlinfo->capi_ctrl;
        hycapi_fill_profile(card);
        capi_ctr_ready(ctrl);
        hycapi_restart_internal(ctrl);
/*      ctrl->resume_output(ctrl); */
    }
    return 0;
}