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/* $Id: kcapi.c,v 1.1.4.1 2001/11/20 14:19:34 kai Exp $
*
* Kernel CAPI 2.0 Module
*
* Copyright 1999 by Carsten Paeth <calle@calle.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#define CONFIG_AVMB1_COMPAT
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <asm/segment.h>
#include <linux/proc_fs.h>
#include <linux/skbuff.h>
#include <linux/tqueue.h>
#include <linux/capi.h>
#include <linux/kernelcapi.h>
#include <linux/locks.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include "capicmd.h"
#include "capiutil.h"
#include "capilli.h"
#ifdef CONFIG_AVMB1_COMPAT
#include <linux/b1lli.h>
#endif
static char *revision = "$Revision: 1.1.4.1 $";
/* ------------------------------------------------------------- */
#define CARD_FREE 0
#define CARD_DETECTED 1
#define CARD_LOADING 2
#define CARD_RUNNING 3
/* ------------------------------------------------------------- */
static int showcapimsgs = 0;
MODULE_DESCRIPTION("CAPI4Linux: kernel CAPI layer");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");
MODULE_PARM(showcapimsgs, "i");
/* ------------------------------------------------------------- */
struct msgidqueue {
struct msgidqueue *next;
__u16 msgid;
};
struct capi_ncci {
struct capi_ncci *next;
__u16 applid;
__u32 ncci;
__u32 winsize;
int nmsg;
struct msgidqueue *msgidqueue;
struct msgidqueue *msgidlast;
struct msgidqueue *msgidfree;
struct msgidqueue msgidpool[CAPI_MAXDATAWINDOW];
};
struct capi_appl {
__u16 applid;
capi_register_params rparam;
int releasing;
void *param;
void (*signal) (__u16 applid, void *param);
struct sk_buff_head recv_queue;
int nncci;
struct capi_ncci *nccilist;
unsigned long nrecvctlpkt;
unsigned long nrecvdatapkt;
unsigned long nsentctlpkt;
unsigned long nsentdatapkt;
};
struct capi_notifier {
struct capi_notifier *next;
unsigned int cmd;
__u32 controller;
__u16 applid;
__u32 ncci;
};
/* ------------------------------------------------------------- */
static struct capi_version driver_version = {2, 0, 1, 1<<4};
static char driver_serial[CAPI_SERIAL_LEN] = "0004711";
static char capi_manufakturer[64] = "AVM Berlin";
#define APPL(a) (&applications[(a)-1])
#define VALID_APPLID(a) ((a) && (a) <= CAPI_MAXAPPL && APPL(a)->applid == a)
#define APPL_IS_FREE(a) (APPL(a)->applid == 0)
#define APPL_MARK_FREE(a) do{ APPL(a)->applid=0; MOD_DEC_USE_COUNT; }while(0);
#define APPL_MARK_USED(a) do{ APPL(a)->applid=(a); MOD_INC_USE_COUNT; }while(0);
#define NCCI2CTRL(ncci) (((ncci) >> 24) & 0x7f)
#define VALID_CARD(c) ((c) > 0 && (c) <= CAPI_MAXCONTR)
#define CARD(c) (&cards[(c)-1])
#define CARDNR(cp) (((cp)-cards)+1)
static struct capi_appl applications[CAPI_MAXAPPL];
static struct capi_ctr cards[CAPI_MAXCONTR];
static int ncards = 0;
static struct sk_buff_head recv_queue;
static struct capi_interface_user *capi_users = 0;
static spinlock_t capi_users_lock = SPIN_LOCK_UNLOCKED;
static struct capi_driver *drivers;
static spinlock_t drivers_lock = SPIN_LOCK_UNLOCKED;
static struct tq_struct tq_state_notify;
static struct tq_struct tq_recv_notify;
/* -------- util functions ------------------------------------ */
static char *cardstate2str(unsigned short cardstate)
{
switch (cardstate) {
default:
case CARD_FREE: return "free";
case CARD_DETECTED: return "detected";
case CARD_LOADING: return "loading";
case CARD_RUNNING: return "running";
}
}
static inline int capi_cmd_valid(__u8 cmd)
{
switch (cmd) {
case CAPI_ALERT:
case CAPI_CONNECT:
case CAPI_CONNECT_ACTIVE:
case CAPI_CONNECT_B3_ACTIVE:
case CAPI_CONNECT_B3:
case CAPI_CONNECT_B3_T90_ACTIVE:
case CAPI_DATA_B3:
case CAPI_DISCONNECT_B3:
case CAPI_DISCONNECT:
case CAPI_FACILITY:
case CAPI_INFO:
case CAPI_LISTEN:
case CAPI_MANUFACTURER:
case CAPI_RESET_B3:
case CAPI_SELECT_B_PROTOCOL:
return 1;
}
return 0;
}
static inline int capi_subcmd_valid(__u8 subcmd)
{
switch (subcmd) {
case CAPI_REQ:
case CAPI_CONF:
case CAPI_IND:
case CAPI_RESP:
return 1;
}
return 0;
}
/* -------- /proc functions ----------------------------------- */
/*
* /proc/capi/applications:
* applid l3cnt dblkcnt dblklen #ncci recvqueuelen
*/
static int proc_applications_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct capi_appl *ap;
int i;
int len = 0;
for (i=0; i < CAPI_MAXAPPL; i++) {
ap = &applications[i];
if (ap->applid == 0) continue;
len += sprintf(page+len, "%u %d %d %d %d %d\n",
ap->applid,
ap->rparam.level3cnt,
ap->rparam.datablkcnt,
ap->rparam.datablklen,
ap->nncci,
skb_queue_len(&ap->recv_queue));
if (len <= off) {
off -= len;
len = 0;
} else {
if (len-off > count)
goto endloop;
}
}
endloop:
*start = page+off;
if (len < count)
*eof = 1;
if (len>count) len = count;
if (len<0) len = 0;
return len;
}
/*
* /proc/capi/ncci:
* applid ncci winsize nblk
*/
static int proc_ncci_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct capi_appl *ap;
struct capi_ncci *np;
int i;
int len = 0;
for (i=0; i < CAPI_MAXAPPL; i++) {
ap = &applications[i];
if (ap->applid == 0) continue;
for (np = ap->nccilist; np; np = np->next) {
len += sprintf(page+len, "%d 0x%x %d %d\n",
np->applid,
np->ncci,
np->winsize,
np->nmsg);
if (len <= off) {
off -= len;
len = 0;
} else {
if (len-off > count)
goto endloop;
}
}
}
endloop:
*start = page+off;
if (len < count)
*eof = 1;
if (len>count) len = count;
if (len<0) len = 0;
return len;
}
/*
* /proc/capi/driver:
* driver ncontroller
*/
static int proc_driver_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct capi_driver *driver;
int len = 0;
spin_lock(&drivers_lock);
for (driver = drivers; driver; driver = driver->next) {
len += sprintf(page+len, "%-32s %d %s\n",
driver->name,
driver->ncontroller,
driver->revision);
if (len <= off) {
off -= len;
len = 0;
} else {
if (len-off > count)
goto endloop;
}
}
endloop:
spin_unlock(&drivers_lock);
*start = page+off;
if (len < count)
*eof = 1;
if (len>count) len = count;
if (len<0) len = 0;
return len;
}
/*
* /proc/capi/users:
* name
*/
static int proc_users_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct capi_interface_user *cp;
int len = 0;
spin_lock(&capi_users_lock);
for (cp = capi_users; cp ; cp = cp->next) {
len += sprintf(page+len, "%s\n", cp->name);
if (len <= off) {
off -= len;
len = 0;
} else {
if (len-off > count)
goto endloop;
}
}
endloop:
spin_unlock(&capi_users_lock);
*start = page+off;
if (len < count)
*eof = 1;
if (len>count) len = count;
if (len<0) len = 0;
return len;
}
/*
* /proc/capi/controller:
* cnr driver cardstate name driverinfo
*/
static int proc_controller_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct capi_ctr *cp;
int i;
int len = 0;
for (i=0; i < CAPI_MAXCONTR; i++) {
cp = &cards[i];
if (cp->cardstate == CARD_FREE) continue;
len += sprintf(page+len, "%d %-10s %-8s %-16s %s\n",
cp->cnr, cp->driver->name,
cardstate2str(cp->cardstate),
cp->name,
cp->driver->procinfo ? cp->driver->procinfo(cp) : ""
);
if (len <= off) {
off -= len;
len = 0;
} else {
if (len-off > count)
goto endloop;
}
}
endloop:
*start = page+off;
if (len < count)
*eof = 1;
if (len>count) len = count;
if (len<0) len = 0;
return len;
}
/*
* /proc/capi/applstats:
* applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
*/
static int proc_applstats_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct capi_appl *ap;
int i;
int len = 0;
for (i=0; i < CAPI_MAXAPPL; i++) {
ap = &applications[i];
if (ap->applid == 0) continue;
len += sprintf(page+len, "%u %lu %lu %lu %lu\n",
ap->applid,
ap->nrecvctlpkt,
ap->nrecvdatapkt,
ap->nsentctlpkt,
ap->nsentdatapkt);
if (len <= off) {
off -= len;
len = 0;
} else {
if (len-off > count)
goto endloop;
}
}
endloop:
*start = page+off;
if (len < count)
*eof = 1;
if (len>count) len = count;
if (len<0) len = 0;
return len;
}
/*
* /proc/capi/contrstats:
* cnr nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
*/
static int proc_contrstats_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct capi_ctr *cp;
int i;
int len = 0;
for (i=0; i < CAPI_MAXCONTR; i++) {
cp = &cards[i];
if (cp->cardstate == CARD_FREE) continue;
len += sprintf(page+len, "%d %lu %lu %lu %lu\n",
cp->cnr,
cp->nrecvctlpkt,
cp->nrecvdatapkt,
cp->nsentctlpkt,
cp->nsentdatapkt);
if (len <= off) {
off -= len;
len = 0;
} else {
if (len-off > count)
goto endloop;
}
}
endloop:
*start = page+off;
if (len < count)
*eof = 1;
if (len>count) len = count;
if (len<0) len = 0;
return len;
}
static struct procfsentries {
char *name;
mode_t mode;
int (*read_proc)(char *page, char **start, off_t off,
int count, int *eof, void *data);
struct proc_dir_entry *procent;
} procfsentries[] = {
{ "capi", S_IFDIR, 0 },
{ "capi/applications", 0 , proc_applications_read_proc },
{ "capi/ncci", 0 , proc_ncci_read_proc },
{ "capi/driver", 0 , proc_driver_read_proc },
{ "capi/users", 0 , proc_users_read_proc },
{ "capi/controller", 0 , proc_controller_read_proc },
{ "capi/applstats", 0 , proc_applstats_read_proc },
{ "capi/contrstats", 0 , proc_contrstats_read_proc },
{ "capi/drivers", S_IFDIR, 0 },
{ "capi/controllers", S_IFDIR, 0 },
};
static void proc_capi_init(void)
{
int nelem = sizeof(procfsentries)/sizeof(procfsentries[0]);
int i;
for (i=0; i < nelem; i++) {
struct procfsentries *p = procfsentries + i;
p->procent = create_proc_entry(p->name, p->mode, 0);
if (p->procent) p->procent->read_proc = p->read_proc;
}
}
static void proc_capi_exit(void)
{
int nelem = sizeof(procfsentries)/sizeof(procfsentries[0]);
int i;
for (i=nelem-1; i >= 0; i--) {
struct procfsentries *p = procfsentries + i;
if (p->procent) {
remove_proc_entry(p->name, 0);
p->procent = 0;
}
}
}
/* -------- Notifier handling --------------------------------- */
static struct capi_notifier_list{
struct capi_notifier *head;
struct capi_notifier *tail;
} notifier_list;
static spinlock_t notifier_lock = SPIN_LOCK_UNLOCKED;
static inline void notify_enqueue(struct capi_notifier *np)
{
struct capi_notifier_list *q = ¬ifier_list;
unsigned long flags;
spin_lock_irqsave(¬ifier_lock, flags);
if (q->tail) {
q->tail->next = np;
q->tail = np;
} else {
q->head = q->tail = np;
}
spin_unlock_irqrestore(¬ifier_lock, flags);
}
static inline struct capi_notifier *notify_dequeue(void)
{
struct capi_notifier_list *q = ¬ifier_list;
struct capi_notifier *np = 0;
unsigned long flags;
spin_lock_irqsave(¬ifier_lock, flags);
if (q->head) {
np = q->head;
if ((q->head = np->next) == 0)
q->tail = 0;
np->next = 0;
}
spin_unlock_irqrestore(¬ifier_lock, flags);
return np;
}
static int notify_push(unsigned int cmd, __u32 controller,
__u16 applid, __u32 ncci)
{
struct capi_notifier *np;
MOD_INC_USE_COUNT;
np = (struct capi_notifier *)kmalloc(sizeof(struct capi_notifier), GFP_ATOMIC);
if (!np) {
MOD_DEC_USE_COUNT;
return -1;
}
memset(np, 0, sizeof(struct capi_notifier));
np->cmd = cmd;
np->controller = controller;
np->applid = applid;
np->ncci = ncci;
notify_enqueue(np);
/*
* The notifier will result in adding/deleteing
* of devices. Devices can only removed in
* user process, not in bh.
*/
MOD_INC_USE_COUNT;
if (schedule_task(&tq_state_notify) == 0)
MOD_DEC_USE_COUNT;
return 0;
}
/* -------- KCI_CONTRUP --------------------------------------- */
static void notify_up(__u32 contr)
{
struct capi_interface_user *p;
printk(KERN_NOTICE "kcapi: notify up contr %d\n", contr);
spin_lock(&capi_users_lock);
for (p = capi_users; p; p = p->next) {
if (!p->callback) continue;
(*p->callback) (KCI_CONTRUP, contr, &CARD(contr)->profile);
}
spin_unlock(&capi_users_lock);
}
/* -------- KCI_CONTRDOWN ------------------------------------- */
static void notify_down(__u32 contr)
{
struct capi_interface_user *p;
printk(KERN_NOTICE "kcapi: notify down contr %d\n", contr);
spin_lock(&capi_users_lock);
for (p = capi_users; p; p = p->next) {
if (!p->callback) continue;
(*p->callback) (KCI_CONTRDOWN, contr, 0);
}
spin_unlock(&capi_users_lock);
}
/* -------- KCI_NCCIUP ---------------------------------------- */
static void notify_ncciup(__u32 contr, __u16 applid, __u32 ncci)
{
struct capi_interface_user *p;
struct capi_ncciinfo n;
n.applid = applid;
n.ncci = ncci;
/*printk(KERN_NOTICE "kcapi: notify up contr %d\n", contr);*/
spin_lock(&capi_users_lock);
for (p = capi_users; p; p = p->next) {
if (!p->callback) continue;
(*p->callback) (KCI_NCCIUP, contr, &n);
}
spin_unlock(&capi_users_lock);
};
/* -------- KCI_NCCIDOWN -------------------------------------- */
static void notify_nccidown(__u32 contr, __u16 applid, __u32 ncci)
{
struct capi_interface_user *p;
struct capi_ncciinfo n;
n.applid = applid;
n.ncci = ncci;
/*printk(KERN_NOTICE "kcapi: notify down contr %d\n", contr);*/
spin_lock(&capi_users_lock);
for (p = capi_users; p; p = p->next) {
if (!p->callback) continue;
(*p->callback) (KCI_NCCIDOWN, contr, &n);
}
spin_unlock(&capi_users_lock);
};
/* ------------------------------------------------------------ */
static void inline notify_doit(struct capi_notifier *np)
{
switch (np->cmd) {
case KCI_CONTRUP:
notify_up(np->controller);
break;
case KCI_CONTRDOWN:
notify_down(np->controller);
break;
case KCI_NCCIUP:
notify_ncciup(np->controller, np->applid, np->ncci);
break;
case KCI_NCCIDOWN:
notify_nccidown(np->controller, np->applid, np->ncci);
break;
}
}
static void notify_handler(void *dummy)
{
struct capi_notifier *np;
while ((np = notify_dequeue()) != 0) {
notify_doit(np);
kfree(np);
MOD_DEC_USE_COUNT;
}
MOD_DEC_USE_COUNT;
}
/* -------- NCCI Handling ------------------------------------- */
static inline void mq_init(struct capi_ncci * np)
{
int i;
np->msgidqueue = 0;
np->msgidlast = 0;
np->nmsg = 0;
memset(np->msgidpool, 0, sizeof(np->msgidpool));
np->msgidfree = &np->msgidpool[0];
for (i = 1; i < np->winsize; i++) {
np->msgidpool[i].next = np->msgidfree;
np->msgidfree = &np->msgidpool[i];
}
}
static inline int mq_enqueue(struct capi_ncci * np, __u16 msgid)
{
struct msgidqueue *mq;
if ((mq = np->msgidfree) == 0)
return 0;
np->msgidfree = mq->next;
mq->msgid = msgid;
mq->next = 0;
if (np->msgidlast)
np->msgidlast->next = mq;
np->msgidlast = mq;
if (!np->msgidqueue)
np->msgidqueue = mq;
np->nmsg++;
return 1;
}
static inline int mq_dequeue(struct capi_ncci * np, __u16 msgid)
{
struct msgidqueue **pp;
for (pp = &np->msgidqueue; *pp; pp = &(*pp)->next) {
if ((*pp)->msgid == msgid) {
struct msgidqueue *mq = *pp;
*pp = mq->next;
if (mq == np->msgidlast)
np->msgidlast = 0;
mq->next = np->msgidfree;
np->msgidfree = mq;
np->nmsg--;
return 1;
}
}
return 0;
}
static void controllercb_appl_registered(struct capi_ctr * card, __u16 appl)
{
}
static void controllercb_appl_released(struct capi_ctr * card, __u16 appl)
{
struct capi_ncci **pp, **nextpp;
for (pp = &APPL(appl)->nccilist; *pp; pp = nextpp) {
if (NCCI2CTRL((*pp)->ncci) == card->cnr) {
struct capi_ncci *np = *pp;
*pp = np->next;
printk(KERN_INFO "kcapi: appl %d ncci 0x%x down!\n", appl, np->ncci);
kfree(np);
APPL(appl)->nncci--;
nextpp = pp;
} else {
nextpp = &(*pp)->next;
}
}
APPL(appl)->releasing--;
if (APPL(appl)->releasing <= 0) {
APPL(appl)->signal = 0;
APPL_MARK_FREE(appl);
printk(KERN_INFO "kcapi: appl %d down\n", appl);
}
}
/*
* ncci management
*/
static void controllercb_new_ncci(struct capi_ctr * card,
__u16 appl, __u32 ncci, __u32 winsize)
{
struct capi_ncci *np;
if (!VALID_APPLID(appl)) {
printk(KERN_ERR "avmb1_handle_new_ncci: illegal appl %d\n", appl);
return;
}
if ((np = (struct capi_ncci *) kmalloc(sizeof(struct capi_ncci), GFP_ATOMIC)) == 0) {
printk(KERN_ERR "capi_new_ncci: alloc failed ncci 0x%x\n", ncci);
return;
}
if (winsize > CAPI_MAXDATAWINDOW) {
printk(KERN_ERR "capi_new_ncci: winsize %d too big, set to %d\n",
winsize, CAPI_MAXDATAWINDOW);
winsize = CAPI_MAXDATAWINDOW;
}
np->applid = appl;
np->ncci = ncci;
np->winsize = winsize;
mq_init(np);
np->next = APPL(appl)->nccilist;
APPL(appl)->nccilist = np;
APPL(appl)->nncci++;
printk(KERN_INFO "kcapi: appl %d ncci 0x%x up\n", appl, ncci);
notify_push(KCI_NCCIUP, CARDNR(card), appl, ncci);
}
static void controllercb_free_ncci(struct capi_ctr * card,
__u16 appl, __u32 ncci)
{
struct capi_ncci **pp;
if (!VALID_APPLID(appl)) {
printk(KERN_ERR "free_ncci: illegal appl %d\n", appl);
return;
}
for (pp = &APPL(appl)->nccilist; *pp; pp = &(*pp)->next) {
if ((*pp)->ncci == ncci) {
struct capi_ncci *np = *pp;
*pp = np->next;
kfree(np);
APPL(appl)->nncci--;
printk(KERN_INFO "kcapi: appl %d ncci 0x%x down\n", appl, ncci);
notify_push(KCI_NCCIDOWN, CARDNR(card), appl, ncci);
return;
}
}
printk(KERN_ERR "free_ncci: ncci 0x%x not found\n", ncci);
}
static struct capi_ncci *find_ncci(struct capi_appl * app, __u32 ncci)
{
struct capi_ncci *np;
for (np = app->nccilist; np; np = np->next) {
if (np->ncci == ncci)
return np;
}
return 0;
}
/* -------- Receiver ------------------------------------------ */
static void recv_handler(void *dummy)
{
struct sk_buff *skb;
while ((skb = skb_dequeue(&recv_queue)) != 0) {
__u16 appl = CAPIMSG_APPID(skb->data);
struct capi_ncci *np;
if (!VALID_APPLID(appl)) {
printk(KERN_ERR "kcapi: recv_handler: applid %d ? (%s)\n",
appl, capi_message2str(skb->data));
kfree_skb(skb);
continue;
}
if (APPL(appl)->signal == 0) {
printk(KERN_ERR "kcapi: recv_handler: applid %d has no signal function\n",
appl);
kfree_skb(skb);
continue;
}
if ( CAPIMSG_COMMAND(skb->data) == CAPI_DATA_B3
&& CAPIMSG_SUBCOMMAND(skb->data) == CAPI_CONF
&& (np = find_ncci(APPL(appl), CAPIMSG_NCCI(skb->data))) != 0
&& mq_dequeue(np, CAPIMSG_MSGID(skb->data)) == 0) {
printk(KERN_ERR "kcapi: msgid %hu ncci 0x%x not on queue\n",
CAPIMSG_MSGID(skb->data), np->ncci);
}
if ( CAPIMSG_COMMAND(skb->data) == CAPI_DATA_B3
&& CAPIMSG_SUBCOMMAND(skb->data) == CAPI_IND) {
APPL(appl)->nrecvdatapkt++;
} else {
APPL(appl)->nrecvctlpkt++;
}
skb_queue_tail(&APPL(appl)->recv_queue, skb);
(APPL(appl)->signal) (APPL(appl)->applid, APPL(appl)->param);
}
}
static void controllercb_handle_capimsg(struct capi_ctr * card,
__u16 appl, struct sk_buff *skb)
{
int showctl = 0;
__u8 cmd, subcmd;
if (card->cardstate != CARD_RUNNING) {
printk(KERN_INFO "kcapi: controller %d not active, got: %s",
card->cnr, capi_message2str(skb->data));
goto error;
}
cmd = CAPIMSG_COMMAND(skb->data);
subcmd = CAPIMSG_SUBCOMMAND(skb->data);
if (cmd == CAPI_DATA_B3 && subcmd == CAPI_IND) {
card->nrecvdatapkt++;
if (card->traceflag > 2) showctl |= 2;
} else {
card->nrecvctlpkt++;
if (card->traceflag) showctl |= 2;
}
showctl |= (card->traceflag & 1);
if (showctl & 2) {
if (showctl & 1) {
printk(KERN_DEBUG "kcapi: got [0x%lx] id#%d %s len=%u\n",
(unsigned long) card->cnr,
CAPIMSG_APPID(skb->data),
capi_cmd2str(cmd, subcmd),
CAPIMSG_LEN(skb->data));
} else {
printk(KERN_DEBUG "kcapi: got [0x%lx] %s\n",
(unsigned long) card->cnr,
capi_message2str(skb->data));
}
}
skb_queue_tail(&recv_queue, skb);
queue_task(&tq_recv_notify, &tq_immediate);
mark_bh(IMMEDIATE_BH);
return;
error:
kfree_skb(skb);
}
static void controllercb_ready(struct capi_ctr * card)
{
__u16 appl;
card->cardstate = CARD_RUNNING;
for (appl = 1; appl <= CAPI_MAXAPPL; appl++) {
if (!VALID_APPLID(appl)) continue;
if (APPL(appl)->releasing) continue;
card->driver->register_appl(card, appl, &APPL(appl)->rparam);
}
printk(KERN_NOTICE "kcapi: card %d \"%s\" ready.\n",
CARDNR(card), card->name);
notify_push(KCI_CONTRUP, CARDNR(card), 0, 0);
}
static void controllercb_reseted(struct capi_ctr * card)
{
__u16 appl;
if (card->cardstate == CARD_FREE)
return;
if (card->cardstate == CARD_DETECTED)
return;
card->cardstate = CARD_DETECTED;
memset(card->manu, 0, sizeof(card->manu));
memset(&card->version, 0, sizeof(card->version));
memset(&card->profile, 0, sizeof(card->profile));
memset(card->serial, 0, sizeof(card->serial));
for (appl = 1; appl <= CAPI_MAXAPPL; appl++) {
struct capi_ncci **pp, **nextpp;
for (pp = &APPL(appl)->nccilist; *pp; pp = nextpp) {
if (NCCI2CTRL((*pp)->ncci) == card->cnr) {
struct capi_ncci *np = *pp;
*pp = np->next;
printk(KERN_INFO "kcapi: appl %d ncci 0x%x forced down!\n", appl, np->ncci);
notify_push(KCI_NCCIDOWN, CARDNR(card), appl, np->ncci);
kfree(np);
nextpp = pp;
} else {
nextpp = &(*pp)->next;
}
}
}
printk(KERN_NOTICE "kcapi: card %d down.\n", CARDNR(card));
notify_push(KCI_CONTRDOWN, CARDNR(card), 0, 0);
}
static void controllercb_suspend_output(struct capi_ctr *card)
{
if (!card->blocked) {
printk(KERN_DEBUG "kcapi: card %d suspend\n", CARDNR(card));
card->blocked = 1;
}
}
static void controllercb_resume_output(struct capi_ctr *card)
{
if (card->blocked) {
printk(KERN_DEBUG "kcapi: card %d resume\n", CARDNR(card));
card->blocked = 0;
}
}
/* ------------------------------------------------------------- */
struct capi_ctr *
drivercb_attach_ctr(struct capi_driver *driver, char *name, void *driverdata)
{
struct capi_ctr *card, **pp;
int i;
for (i=0; i < CAPI_MAXCONTR && cards[i].cardstate != CARD_FREE; i++) ;
if (i == CAPI_MAXCONTR) {
printk(KERN_ERR "kcapi: out of controller slots\n");
return 0;
}
card = &cards[i];
memset(card, 0, sizeof(struct capi_ctr));
card->driver = driver;
card->cnr = CARDNR(card);
strncpy(card->name, name, sizeof(card->name));
card->cardstate = CARD_DETECTED;
card->blocked = 0;
card->driverdata = driverdata;
card->traceflag = showcapimsgs;
card->ready = controllercb_ready;
card->reseted = controllercb_reseted;
card->suspend_output = controllercb_suspend_output;
card->resume_output = controllercb_resume_output;
card->handle_capimsg = controllercb_handle_capimsg;
card->appl_registered = controllercb_appl_registered;
card->appl_released = controllercb_appl_released;
card->new_ncci = controllercb_new_ncci;
card->free_ncci = controllercb_free_ncci;
for (pp = &driver->controller; *pp; pp = &(*pp)->next) ;
card->next = 0;
*pp = card;
driver->ncontroller++;
sprintf(card->procfn, "capi/controllers/%d", card->cnr);
card->procent = create_proc_entry(card->procfn, 0, 0);
if (card->procent) {
card->procent->read_proc =
(int (*)(char *,char **,off_t,int,int *,void *))
driver->ctr_read_proc;
card->procent->data = card;
}
ncards++;
printk(KERN_NOTICE "kcapi: Controller %d: %s attached\n",
card->cnr, card->name);
return card;
}
static int drivercb_detach_ctr(struct capi_ctr *card)
{
struct capi_driver *driver = card->driver;
struct capi_ctr **pp;
if (card->cardstate == CARD_FREE)
return 0;
if (card->cardstate != CARD_DETECTED)
controllercb_reseted(card);
for (pp = &driver->controller; *pp ; pp = &(*pp)->next) {
if (*pp == card) {
*pp = card->next;
driver->ncontroller--;
ncards--;
break;
}
}
if (card->procent) {
remove_proc_entry(card->procfn, 0);
card->procent = 0;
}
card->cardstate = CARD_FREE;
printk(KERN_NOTICE "kcapi: Controller %d: %s unregistered\n",
card->cnr, card->name);
return 0;
}
/* ------------------------------------------------------------- */
/* fallback if no driver read_proc function defined by driver */
static int driver_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct capi_driver *driver = (struct capi_driver *)data;
int len = 0;
len += sprintf(page+len, "%-16s %s\n", "name", driver->name);
len += sprintf(page+len, "%-16s %s\n", "revision", driver->revision);
if (len < off)
return 0;
*eof = 1;
*start = page + off;
return ((count < len-off) ? count : len-off);
}
/* ------------------------------------------------------------- */
static struct capi_driver_interface di = {
drivercb_attach_ctr,
drivercb_detach_ctr,
};
struct capi_driver_interface *attach_capi_driver(struct capi_driver *driver)
{
struct capi_driver **pp;
MOD_INC_USE_COUNT;
spin_lock(&drivers_lock);
for (pp = &drivers; *pp; pp = &(*pp)->next) ;
driver->next = 0;
*pp = driver;
spin_unlock(&drivers_lock);
printk(KERN_NOTICE "kcapi: driver %s attached\n", driver->name);
sprintf(driver->procfn, "capi/drivers/%s", driver->name);
driver->procent = create_proc_entry(driver->procfn, 0, 0);
if (driver->procent) {
if (driver->driver_read_proc) {
driver->procent->read_proc =
(int (*)(char *,char **,off_t,int,int *,void *))
driver->driver_read_proc;
} else {
driver->procent->read_proc = driver_read_proc;
}
driver->procent->data = driver;
}
return &di;
}
void detach_capi_driver(struct capi_driver *driver)
{
struct capi_driver **pp;
spin_lock(&drivers_lock);
for (pp = &drivers; *pp && *pp != driver; pp = &(*pp)->next) ;
if (*pp) {
*pp = (*pp)->next;
printk(KERN_NOTICE "kcapi: driver %s detached\n", driver->name);
} else {
printk(KERN_ERR "kcapi: driver %s double detach ?\n", driver->name);
}
spin_unlock(&drivers_lock);
if (driver->procent) {
remove_proc_entry(driver->procfn, 0);
driver->procent = 0;
}
MOD_DEC_USE_COUNT;
}
/* ------------------------------------------------------------- */
/* -------- CAPI2.0 Interface ---------------------------------- */
/* ------------------------------------------------------------- */
static __u16 capi_isinstalled(void)
{
int i;
for (i = 0; i < CAPI_MAXCONTR; i++) {
if (cards[i].cardstate == CARD_RUNNING)
return CAPI_NOERROR;
}
return CAPI_REGNOTINSTALLED;
}
static __u16 capi_register(capi_register_params * rparam, __u16 * applidp)
{
int appl;
int i;
if (rparam->datablklen < 128)
return CAPI_LOGBLKSIZETOSMALL;
for (appl = 1; appl <= CAPI_MAXAPPL; appl++) {
if (APPL_IS_FREE(appl))
break;
}
if (appl > CAPI_MAXAPPL)
return CAPI_TOOMANYAPPLS;
APPL_MARK_USED(appl);
skb_queue_head_init(&APPL(appl)->recv_queue);
APPL(appl)->nncci = 0;
memcpy(&APPL(appl)->rparam, rparam, sizeof(capi_register_params));
for (i = 0; i < CAPI_MAXCONTR; i++) {
if (cards[i].cardstate != CARD_RUNNING)
continue;
cards[i].driver->register_appl(&cards[i], appl,
&APPL(appl)->rparam);
}
*applidp = appl;
printk(KERN_INFO "kcapi: appl %d up\n", appl);
return CAPI_NOERROR;
}
static __u16 capi_release(__u16 applid)
{
int i;
if (!VALID_APPLID(applid) || APPL(applid)->releasing)
return CAPI_ILLAPPNR;
APPL(applid)->releasing++;
skb_queue_purge(&APPL(applid)->recv_queue);
for (i = 0; i < CAPI_MAXCONTR; i++) {
if (cards[i].cardstate != CARD_RUNNING)
continue;
APPL(applid)->releasing++;
cards[i].driver->release_appl(&cards[i], applid);
}
APPL(applid)->releasing--;
if (APPL(applid)->releasing <= 0) {
APPL(applid)->signal = 0;
APPL_MARK_FREE(applid);
printk(KERN_INFO "kcapi: appl %d down\n", applid);
}
return CAPI_NOERROR;
}
static __u16 capi_put_message(__u16 applid, struct sk_buff *skb)
{
struct capi_ncci *np;
__u32 contr;
int showctl = 0;
__u8 cmd, subcmd;
if (ncards == 0)
return CAPI_REGNOTINSTALLED;
if (!VALID_APPLID(applid))
return CAPI_ILLAPPNR;
if (skb->len < 12
|| !capi_cmd_valid(CAPIMSG_COMMAND(skb->data))
|| !capi_subcmd_valid(CAPIMSG_SUBCOMMAND(skb->data)))
return CAPI_ILLCMDORSUBCMDORMSGTOSMALL;
contr = CAPIMSG_CONTROLLER(skb->data);
if (!VALID_CARD(contr) || CARD(contr)->cardstate != CARD_RUNNING) {
contr = 1;
if (CARD(contr)->cardstate != CARD_RUNNING)
return CAPI_REGNOTINSTALLED;
}
if (CARD(contr)->blocked)
return CAPI_SENDQUEUEFULL;
cmd = CAPIMSG_COMMAND(skb->data);
subcmd = CAPIMSG_SUBCOMMAND(skb->data);
if (cmd == CAPI_DATA_B3 && subcmd== CAPI_REQ) {
if ((np = find_ncci(APPL(applid), CAPIMSG_NCCI(skb->data))) != 0
&& mq_enqueue(np, CAPIMSG_MSGID(skb->data)) == 0)
return CAPI_SENDQUEUEFULL;
CARD(contr)->nsentdatapkt++;
APPL(applid)->nsentdatapkt++;
if (CARD(contr)->traceflag > 2) showctl |= 2;
} else {
CARD(contr)->nsentctlpkt++;
APPL(applid)->nsentctlpkt++;
if (CARD(contr)->traceflag) showctl |= 2;
}
showctl |= (CARD(contr)->traceflag & 1);
if (showctl & 2) {
if (showctl & 1) {
printk(KERN_DEBUG "kcapi: put [0x%lx] id#%d %s len=%u\n",
(unsigned long) contr,
CAPIMSG_APPID(skb->data),
capi_cmd2str(cmd, subcmd),
CAPIMSG_LEN(skb->data));
} else {
printk(KERN_DEBUG "kcapi: put [0x%lx] %s\n",
(unsigned long) contr,
capi_message2str(skb->data));
}
}
CARD(contr)->driver->send_message(CARD(contr), skb);
return CAPI_NOERROR;
}
static __u16 capi_get_message(__u16 applid, struct sk_buff **msgp)
{
struct sk_buff *skb;
if (!VALID_APPLID(applid))
return CAPI_ILLAPPNR;
if ((skb = skb_dequeue(&APPL(applid)->recv_queue)) == 0)
return CAPI_RECEIVEQUEUEEMPTY;
*msgp = skb;
return CAPI_NOERROR;
}
static __u16 capi_set_signal(__u16 applid,
void (*signal) (__u16 applid, void *param),
void *param)
{
if (!VALID_APPLID(applid))
return CAPI_ILLAPPNR;
APPL(applid)->signal = signal;
APPL(applid)->param = param;
return CAPI_NOERROR;
}
static __u16 capi_get_manufacturer(__u32 contr, __u8 buf[CAPI_MANUFACTURER_LEN])
{
if (contr == 0) {
strncpy(buf, capi_manufakturer, CAPI_MANUFACTURER_LEN);
return CAPI_NOERROR;
}
if (!VALID_CARD(contr) || CARD(contr)->cardstate != CARD_RUNNING)
return CAPI_REGNOTINSTALLED;
strncpy(buf, CARD(contr)->manu, CAPI_MANUFACTURER_LEN);
return CAPI_NOERROR;
}
static __u16 capi_get_version(__u32 contr, struct capi_version *verp)
{
if (contr == 0) {
*verp = driver_version;
return CAPI_NOERROR;
}
if (!VALID_CARD(contr) || CARD(contr)->cardstate != CARD_RUNNING)
return CAPI_REGNOTINSTALLED;
memcpy((void *) verp, &CARD(contr)->version, sizeof(capi_version));
return CAPI_NOERROR;
}
static __u16 capi_get_serial(__u32 contr, __u8 serial[CAPI_SERIAL_LEN])
{
if (contr == 0) {
strncpy(serial, driver_serial, CAPI_SERIAL_LEN);
return CAPI_NOERROR;
}
if (!VALID_CARD(contr) || CARD(contr)->cardstate != CARD_RUNNING)
return CAPI_REGNOTINSTALLED;
strncpy((void *) serial, CARD(contr)->serial, CAPI_SERIAL_LEN);
return CAPI_NOERROR;
}
static __u16 capi_get_profile(__u32 contr, struct capi_profile *profp)
{
if (contr == 0) {
profp->ncontroller = ncards;
return CAPI_NOERROR;
}
if (!VALID_CARD(contr) || CARD(contr)->cardstate != CARD_RUNNING)
return CAPI_REGNOTINSTALLED;
memcpy((void *) profp, &CARD(contr)->profile,
sizeof(struct capi_profile));
return CAPI_NOERROR;
}
static struct capi_driver *find_driver(char *name)
{
struct capi_driver *dp;
spin_lock(&drivers_lock);
for (dp = drivers; dp; dp = dp->next)
if (strcmp(dp->name, name) == 0)
break;
spin_unlock(&drivers_lock);
return dp;
}
#ifdef CONFIG_AVMB1_COMPAT
static int old_capi_manufacturer(unsigned int cmd, void *data)
{
avmb1_loadandconfigdef ldef;
avmb1_extcarddef cdef;
avmb1_resetdef rdef;
avmb1_getdef gdef;
struct capi_driver *driver;
struct capi_ctr *card;
capicardparams cparams;
capiloaddata ldata;
int retval;
switch (cmd) {
case AVMB1_ADDCARD:
case AVMB1_ADDCARD_WITH_TYPE:
if (cmd == AVMB1_ADDCARD) {
if ((retval = copy_from_user((void *) &cdef, data,
sizeof(avmb1_carddef))))
return retval;
cdef.cardtype = AVM_CARDTYPE_B1;
} else {
if ((retval = copy_from_user((void *) &cdef, data,
sizeof(avmb1_extcarddef))))
return retval;
}
cparams.port = cdef.port;
cparams.irq = cdef.irq;
cparams.cardnr = cdef.cardnr;
switch (cdef.cardtype) {
case AVM_CARDTYPE_B1:
driver = find_driver("b1isa");
break;
case AVM_CARDTYPE_T1:
driver = find_driver("t1isa");
break;
default:
driver = 0;
break;
}
if (!driver) {
printk(KERN_ERR "kcapi: driver not loaded.\n");
return -EIO;
}
if (!driver->add_card) {
printk(KERN_ERR "kcapi: driver has no add card function.\n");
return -EIO;
}
return driver->add_card(driver, &cparams);
case AVMB1_LOAD:
case AVMB1_LOAD_AND_CONFIG:
if (cmd == AVMB1_LOAD) {
if ((retval = copy_from_user((void *) &ldef, data,
sizeof(avmb1_loaddef))))
return retval;
ldef.t4config.len = 0;
ldef.t4config.data = 0;
} else {
if ((retval = copy_from_user((void *) &ldef, data,
sizeof(avmb1_loadandconfigdef))))
return retval;
}
if (!VALID_CARD(ldef.contr))
return -ESRCH;
card = CARD(ldef.contr);
if (card->cardstate == CARD_FREE)
return -ESRCH;
if (card->driver->load_firmware == 0) {
printk(KERN_DEBUG "kcapi: load: driver \%s\" has no load function\n", card->driver->name);
return -ESRCH;
}
if (ldef.t4file.len <= 0) {
printk(KERN_DEBUG "kcapi: load: invalid parameter: length of t4file is %d ?\n", ldef.t4file.len);
return -EINVAL;
}
if (ldef.t4file.data == 0) {
printk(KERN_DEBUG "kcapi: load: invalid parameter: dataptr is 0\n");
return -EINVAL;
}
ldata.firmware.user = 1;
ldata.firmware.data = ldef.t4file.data;
ldata.firmware.len = ldef.t4file.len;
ldata.configuration.user = 1;
ldata.configuration.data = ldef.t4config.data;
ldata.configuration.len = ldef.t4config.len;
if (card->cardstate != CARD_DETECTED) {
printk(KERN_INFO "kcapi: load: contr=%d not in detect state\n", ldef.contr);
return -EBUSY;
}
card->cardstate = CARD_LOADING;
retval = card->driver->load_firmware(card, &ldata);
if (retval) {
card->cardstate = CARD_DETECTED;
return retval;
}
while (card->cardstate != CARD_RUNNING) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/10); /* 0.1 sec */
if (signal_pending(current))
return -EINTR;
}
return 0;
case AVMB1_RESETCARD:
if ((retval = copy_from_user((void *) &rdef, data,
sizeof(avmb1_resetdef))))
return retval;
if (!VALID_CARD(rdef.contr))
return -ESRCH;
card = CARD(rdef.contr);
if (card->cardstate == CARD_FREE)
return -ESRCH;
if (card->cardstate == CARD_DETECTED)
return 0;
card->driver->reset_ctr(card);
while (card->cardstate > CARD_DETECTED) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/10); /* 0.1 sec */
if (signal_pending(current))
return -EINTR;
}
return 0;
case AVMB1_GET_CARDINFO:
if ((retval = copy_from_user((void *) &gdef, data,
sizeof(avmb1_getdef))))
return retval;
if (!VALID_CARD(gdef.contr))
return -ESRCH;
card = CARD(gdef.contr);
if (card->cardstate == CARD_FREE)
return -ESRCH;
gdef.cardstate = card->cardstate;
if (card->driver == find_driver("t1isa"))
gdef.cardtype = AVM_CARDTYPE_T1;
else gdef.cardtype = AVM_CARDTYPE_B1;
if ((retval = copy_to_user(data, (void *) &gdef,
sizeof(avmb1_getdef))))
return retval;
return 0;
case AVMB1_REMOVECARD:
if ((retval = copy_from_user((void *) &rdef, data,
sizeof(avmb1_resetdef))))
return retval;
if (!VALID_CARD(rdef.contr))
return -ESRCH;
card = CARD(rdef.contr);
if (card->cardstate == CARD_FREE)
return -ESRCH;
if (card->cardstate != CARD_DETECTED)
return -EBUSY;
card->driver->remove_ctr(card);
while (card->cardstate != CARD_FREE) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/10); /* 0.1 sec */
if (signal_pending(current))
return -EINTR;
}
return 0;
}
return -EINVAL;
}
#endif
static int capi_manufacturer(unsigned int cmd, void *data)
{
struct capi_ctr *card;
int retval;
switch (cmd) {
#ifdef CONFIG_AVMB1_COMPAT
case AVMB1_ADDCARD:
case AVMB1_ADDCARD_WITH_TYPE:
case AVMB1_LOAD:
case AVMB1_LOAD_AND_CONFIG:
case AVMB1_RESETCARD:
case AVMB1_GET_CARDINFO:
case AVMB1_REMOVECARD:
return old_capi_manufacturer(cmd, data);
#endif
case KCAPI_CMD_TRACE:
{
kcapi_flagdef fdef;
if ((retval = copy_from_user((void *) &fdef, data,
sizeof(kcapi_flagdef))))
return retval;
if (!VALID_CARD(fdef.contr))
return -ESRCH;
card = CARD(fdef.contr);
if (card->cardstate == CARD_FREE)
return -ESRCH;
card->traceflag = fdef.flag;
printk(KERN_INFO "kcapi: contr %d set trace=%d\n",
card->cnr, card->traceflag);
return 0;
}
case KCAPI_CMD_ADDCARD:
{
struct capi_driver *driver;
capicardparams cparams;
kcapi_carddef cdef;
if ((retval = copy_from_user((void *) &cdef, data,
sizeof(cdef))))
return retval;
cparams.port = cdef.port;
cparams.irq = cdef.irq;
cparams.membase = cdef.membase;
cparams.cardnr = cdef.cardnr;
cparams.cardtype = 0;
cdef.driver[sizeof(cdef.driver)-1] = 0;
if ((driver = find_driver(cdef.driver)) == 0) {
printk(KERN_ERR "kcapi: driver \"%s\" not loaded.\n",
cdef.driver);
return -ESRCH;
}
if (!driver->add_card) {
printk(KERN_ERR "kcapi: driver \"%s\" has no add card function.\n", cdef.driver);
return -EIO;
}
return driver->add_card(driver, &cparams);
}
default:
printk(KERN_ERR "kcapi: manufacturer command %d unknown.\n",
cmd);
break;
}
return -EINVAL;
}
struct capi_interface avmb1_interface =
{
capi_isinstalled,
capi_register,
capi_release,
capi_put_message,
capi_get_message,
capi_set_signal,
capi_get_manufacturer,
capi_get_version,
capi_get_serial,
capi_get_profile,
capi_manufacturer
};
/* ------------------------------------------------------------- */
/* -------- Exported Functions --------------------------------- */
/* ------------------------------------------------------------- */
struct capi_interface *attach_capi_interface(struct capi_interface_user *userp)
{
struct capi_interface_user *p;
MOD_INC_USE_COUNT;
spin_lock(&capi_users_lock);
for (p = capi_users; p; p = p->next) {
if (p == userp) {
spin_unlock(&capi_users_lock);
printk(KERN_ERR "kcapi: double attach from %s\n",
userp->name);
MOD_DEC_USE_COUNT;
return 0;
}
}
userp->next = capi_users;
capi_users = userp;
spin_unlock(&capi_users_lock);
printk(KERN_NOTICE "kcapi: %s attached\n", userp->name);
return &avmb1_interface;
}
int detach_capi_interface(struct capi_interface_user *userp)
{
struct capi_interface_user **pp;
spin_lock(&capi_users_lock);
for (pp = &capi_users; *pp; pp = &(*pp)->next) {
if (*pp == userp) {
*pp = userp->next;
spin_unlock(&capi_users_lock);
userp->next = 0;
printk(KERN_NOTICE "kcapi: %s detached\n", userp->name);
MOD_DEC_USE_COUNT;
return 0;
}
}
spin_unlock(&capi_users_lock);
printk(KERN_ERR "kcapi: double detach from %s\n", userp->name);
return -1;
}
/* ------------------------------------------------------------- */
/* -------- Init & Cleanup ------------------------------------- */
/* ------------------------------------------------------------- */
EXPORT_SYMBOL(attach_capi_interface);
EXPORT_SYMBOL(detach_capi_interface);
EXPORT_SYMBOL(attach_capi_driver);
EXPORT_SYMBOL(detach_capi_driver);
/*
* init / exit functions
*/
static int __init kcapi_init(void)
{
char *p;
char rev[32];
MOD_INC_USE_COUNT;
skb_queue_head_init(&recv_queue);
tq_state_notify.routine = notify_handler;
tq_state_notify.data = 0;
tq_recv_notify.routine = recv_handler;
tq_recv_notify.data = 0;
proc_capi_init();
if ((p = strchr(revision, ':')) != 0 && p[1]) {
strncpy(rev, p + 2, sizeof(rev));
rev[sizeof(rev)-1] = 0;
if ((p = strchr(rev, '$')) != 0 && p > rev)
*(p-1) = 0;
} else
strcpy(rev, "1.0");
#ifdef MODULE
printk(KERN_NOTICE "CAPI-driver Rev %s: loaded\n", rev);
#else
printk(KERN_NOTICE "CAPI-driver Rev %s: started\n", rev);
#endif
MOD_DEC_USE_COUNT;
return 0;
}
static void __exit kcapi_exit(void)
{
char rev[10];
char *p;
if ((p = strchr(revision, ':'))) {
strcpy(rev, p + 1);
p = strchr(rev, '$');
*p = 0;
} else {
strcpy(rev, "1.0");
}
proc_capi_exit();
printk(KERN_NOTICE "CAPI-driver Rev%s: unloaded\n", rev);
}
module_init(kcapi_init);
module_exit(kcapi_exit);
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