|
|
|
extern void ldv_module_get(void);
|
|
extern void ldv_module_put(void);
|
|
/* $Id: kcapi.c,v 1.1.2.8 2004/03/26 19:57:20 armin Exp $
|
|
*
|
|
* Kernel CAPI 2.0 Module
|
|
*
|
|
* Copyright 1999 by Carsten Paeth <calle@calle.de>
|
|
* Copyright 2002 by Kai Germaschewski <kai@germaschewski.name>
|
|
*
|
|
* This software may be used and distributed according to the terms
|
|
* of the GNU General Public License, incorporated herein by reference.
|
|
*
|
|
*/
|
|
|
|
#define AVMB1_COMPAT
|
|
|
|
#include "kcapi.h"
|
|
#include <linux/module.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/capi.h>
|
|
#include <linux/kernelcapi.h>
|
|
#include <linux/init.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/slab.h>
|
|
#include <asm/uaccess.h>
|
|
#include <linux/isdn/capicmd.h>
|
|
#include <linux/isdn/capiutil.h>
|
|
#ifdef AVMB1_COMPAT
|
|
#include <linux/b1lli.h>
|
|
#endif
|
|
#include <linux/mutex.h>
|
|
#include <linux/rcupdate.h>
|
|
|
|
static int showcapimsgs = 0;
|
|
static struct workqueue_struct *kcapi_wq;
|
|
|
|
MODULE_DESCRIPTION("CAPI4Linux: kernel CAPI layer");
|
|
MODULE_AUTHOR("Carsten Paeth");
|
|
MODULE_LICENSE("GPL");
|
|
module_param(showcapimsgs, uint, 0);
|
|
|
|
/* ------------------------------------------------------------- */
|
|
|
|
struct capictr_event {
|
|
struct work_struct work;
|
|
unsigned int type;
|
|
u32 controller;
|
|
};
|
|
|
|
/* ------------------------------------------------------------- */
|
|
|
|
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 NCCI2CTRL(ncci) (((ncci) >> 24) & 0x7f)
|
|
|
|
LIST_HEAD(capi_drivers);
|
|
DEFINE_MUTEX(capi_drivers_lock);
|
|
|
|
struct capi_ctr *capi_controller[CAPI_MAXCONTR];
|
|
DEFINE_MUTEX(capi_controller_lock);
|
|
|
|
struct capi20_appl *capi_applications[CAPI_MAXAPPL];
|
|
|
|
static int ncontrollers;
|
|
|
|
static BLOCKING_NOTIFIER_HEAD(ctr_notifier_list);
|
|
|
|
/* -------- controller ref counting -------------------------------------- */
|
|
|
|
static inline struct capi_ctr *
|
|
capi_ctr_get(struct capi_ctr *ctr)
|
|
{
|
|
if (!try_module_get(ctr->owner))
|
|
return NULL;
|
|
return ctr;
|
|
}
|
|
|
|
static inline void
|
|
capi_ctr_put(struct capi_ctr *ctr)
|
|
{
|
|
module_put(ctr->owner);
|
|
}
|
|
|
|
/* ------------------------------------------------------------- */
|
|
|
|
static inline struct capi_ctr *get_capi_ctr_by_nr(u16 contr)
|
|
{
|
|
if (contr - 1 >= CAPI_MAXCONTR)
|
|
return NULL;
|
|
|
|
return capi_controller[contr - 1];
|
|
}
|
|
|
|
static inline struct capi20_appl *__get_capi_appl_by_nr(u16 applid)
|
|
{
|
|
lockdep_assert_held(&capi_controller_lock);
|
|
|
|
if (applid - 1 >= CAPI_MAXAPPL)
|
|
return NULL;
|
|
|
|
return capi_applications[applid - 1];
|
|
}
|
|
|
|
static inline struct capi20_appl *get_capi_appl_by_nr(u16 applid)
|
|
{
|
|
if (applid - 1 >= CAPI_MAXAPPL)
|
|
return NULL;
|
|
|
|
return rcu_dereference(capi_applications[applid - 1]);
|
|
}
|
|
|
|
/* -------- util functions ------------------------------------ */
|
|
|
|
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;
|
|
}
|
|
|
|
/* ------------------------------------------------------------ */
|
|
|
|
static void
|
|
register_appl(struct capi_ctr *ctr, u16 applid, capi_register_params *rparam)
|
|
{
|
|
ctr = capi_ctr_get(ctr);
|
|
|
|
if (ctr)
|
|
ctr->register_appl(ctr, applid, rparam);
|
|
else
|
|
printk(KERN_WARNING "%s: cannot get controller resources\n",
|
|
__func__);
|
|
}
|
|
|
|
|
|
static void release_appl(struct capi_ctr *ctr, u16 applid)
|
|
{
|
|
DBG("applid %#x", applid);
|
|
|
|
ctr->release_appl(ctr, applid);
|
|
capi_ctr_put(ctr);
|
|
}
|
|
|
|
static void notify_up(u32 contr)
|
|
{
|
|
struct capi20_appl *ap;
|
|
struct capi_ctr *ctr;
|
|
u16 applid;
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
if (showcapimsgs & 1)
|
|
printk(KERN_DEBUG "kcapi: notify up contr %d\n", contr);
|
|
|
|
ctr = get_capi_ctr_by_nr(contr);
|
|
if (ctr) {
|
|
if (ctr->state == CAPI_CTR_RUNNING)
|
|
goto unlock_out;
|
|
|
|
ctr->state = CAPI_CTR_RUNNING;
|
|
|
|
for (applid = 1; applid <= CAPI_MAXAPPL; applid++) {
|
|
ap = __get_capi_appl_by_nr(applid);
|
|
if (ap)
|
|
register_appl(ctr, applid, &ap->rparam);
|
|
}
|
|
|
|
wake_up_interruptible_all(&ctr->state_wait_queue);
|
|
} else
|
|
printk(KERN_WARNING "%s: invalid contr %d\n", __func__, contr);
|
|
|
|
unlock_out:
|
|
mutex_unlock(&capi_controller_lock);
|
|
}
|
|
|
|
static void ctr_down(struct capi_ctr *ctr, int new_state)
|
|
{
|
|
struct capi20_appl *ap;
|
|
u16 applid;
|
|
|
|
if (ctr->state == CAPI_CTR_DETECTED || ctr->state == CAPI_CTR_DETACHED)
|
|
return;
|
|
|
|
ctr->state = new_state;
|
|
|
|
memset(ctr->manu, 0, sizeof(ctr->manu));
|
|
memset(&ctr->version, 0, sizeof(ctr->version));
|
|
memset(&ctr->profile, 0, sizeof(ctr->profile));
|
|
memset(ctr->serial, 0, sizeof(ctr->serial));
|
|
|
|
for (applid = 1; applid <= CAPI_MAXAPPL; applid++) {
|
|
ap = __get_capi_appl_by_nr(applid);
|
|
if (ap)
|
|
capi_ctr_put(ctr);
|
|
}
|
|
|
|
wake_up_interruptible_all(&ctr->state_wait_queue);
|
|
}
|
|
|
|
static void notify_down(u32 contr)
|
|
{
|
|
struct capi_ctr *ctr;
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
if (showcapimsgs & 1)
|
|
printk(KERN_DEBUG "kcapi: notify down contr %d\n", contr);
|
|
|
|
ctr = get_capi_ctr_by_nr(contr);
|
|
if (ctr)
|
|
ctr_down(ctr, CAPI_CTR_DETECTED);
|
|
else
|
|
printk(KERN_WARNING "%s: invalid contr %d\n", __func__, contr);
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
}
|
|
|
|
static int
|
|
notify_handler(struct notifier_block *nb, unsigned long val, void *v)
|
|
{
|
|
u32 contr = (long)v;
|
|
|
|
switch (val) {
|
|
case CAPICTR_UP:
|
|
notify_up(contr);
|
|
break;
|
|
case CAPICTR_DOWN:
|
|
notify_down(contr);
|
|
break;
|
|
}
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
static void do_notify_work(struct work_struct *work)
|
|
{
|
|
struct capictr_event *event =
|
|
container_of(work, struct capictr_event, work);
|
|
|
|
blocking_notifier_call_chain(&ctr_notifier_list, event->type,
|
|
(void *)(long)event->controller);
|
|
kfree(event);
|
|
}
|
|
|
|
/*
|
|
* The notifier will result in adding/deleteing of devices. Devices can
|
|
* only removed in user process, not in bh.
|
|
*/
|
|
static int notify_push(unsigned int event_type, u32 controller)
|
|
{
|
|
struct capictr_event *event = kmalloc(sizeof(*event), GFP_ATOMIC);
|
|
|
|
if (!event)
|
|
return -ENOMEM;
|
|
|
|
INIT_WORK(&event->work, do_notify_work);
|
|
event->type = event_type;
|
|
event->controller = controller;
|
|
|
|
queue_work(kcapi_wq, &event->work);
|
|
return 0;
|
|
}
|
|
|
|
int register_capictr_notifier(struct notifier_block *nb)
|
|
{
|
|
return blocking_notifier_chain_register(&ctr_notifier_list, nb);
|
|
}
|
|
EXPORT_SYMBOL_GPL(register_capictr_notifier);
|
|
|
|
int unregister_capictr_notifier(struct notifier_block *nb)
|
|
{
|
|
return blocking_notifier_chain_unregister(&ctr_notifier_list, nb);
|
|
}
|
|
EXPORT_SYMBOL_GPL(unregister_capictr_notifier);
|
|
|
|
/* -------- Receiver ------------------------------------------ */
|
|
|
|
static void recv_handler(struct work_struct *work)
|
|
{
|
|
struct sk_buff *skb;
|
|
struct capi20_appl *ap =
|
|
container_of(work, struct capi20_appl, recv_work);
|
|
|
|
if ((!ap) || (ap->release_in_progress))
|
|
return;
|
|
|
|
mutex_lock(&ap->recv_mtx);
|
|
while ((skb = skb_dequeue(&ap->recv_queue))) {
|
|
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_IND)
|
|
ap->nrecvdatapkt++;
|
|
else
|
|
ap->nrecvctlpkt++;
|
|
|
|
ap->recv_message(ap, skb);
|
|
}
|
|
mutex_unlock(&ap->recv_mtx);
|
|
}
|
|
|
|
/**
|
|
* capi_ctr_handle_message() - handle incoming CAPI message
|
|
* @ctr: controller descriptor structure.
|
|
* @appl: application ID.
|
|
* @skb: message.
|
|
*
|
|
* Called by hardware driver to pass a CAPI message to the application.
|
|
*/
|
|
|
|
void capi_ctr_handle_message(struct capi_ctr *ctr, u16 appl,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct capi20_appl *ap;
|
|
int showctl = 0;
|
|
u8 cmd, subcmd;
|
|
_cdebbuf *cdb;
|
|
|
|
if (ctr->state != CAPI_CTR_RUNNING) {
|
|
cdb = capi_message2str(skb->data);
|
|
if (cdb) {
|
|
printk(KERN_INFO "kcapi: controller [%03d] not active, got: %s",
|
|
ctr->cnr, cdb->buf);
|
|
cdebbuf_free(cdb);
|
|
} else
|
|
printk(KERN_INFO "kcapi: controller [%03d] not active, cannot trace\n",
|
|
ctr->cnr);
|
|
goto error;
|
|
}
|
|
|
|
cmd = CAPIMSG_COMMAND(skb->data);
|
|
subcmd = CAPIMSG_SUBCOMMAND(skb->data);
|
|
if (cmd == CAPI_DATA_B3 && subcmd == CAPI_IND) {
|
|
ctr->nrecvdatapkt++;
|
|
if (ctr->traceflag > 2)
|
|
showctl |= 2;
|
|
} else {
|
|
ctr->nrecvctlpkt++;
|
|
if (ctr->traceflag)
|
|
showctl |= 2;
|
|
}
|
|
showctl |= (ctr->traceflag & 1);
|
|
if (showctl & 2) {
|
|
if (showctl & 1) {
|
|
printk(KERN_DEBUG "kcapi: got [%03d] id#%d %s len=%u\n",
|
|
ctr->cnr, CAPIMSG_APPID(skb->data),
|
|
capi_cmd2str(cmd, subcmd),
|
|
CAPIMSG_LEN(skb->data));
|
|
} else {
|
|
cdb = capi_message2str(skb->data);
|
|
if (cdb) {
|
|
printk(KERN_DEBUG "kcapi: got [%03d] %s\n",
|
|
ctr->cnr, cdb->buf);
|
|
cdebbuf_free(cdb);
|
|
} else
|
|
printk(KERN_DEBUG "kcapi: got [%03d] id#%d %s len=%u, cannot trace\n",
|
|
ctr->cnr, CAPIMSG_APPID(skb->data),
|
|
capi_cmd2str(cmd, subcmd),
|
|
CAPIMSG_LEN(skb->data));
|
|
}
|
|
|
|
}
|
|
|
|
rcu_read_lock();
|
|
ap = get_capi_appl_by_nr(CAPIMSG_APPID(skb->data));
|
|
if (!ap) {
|
|
rcu_read_unlock();
|
|
cdb = capi_message2str(skb->data);
|
|
if (cdb) {
|
|
printk(KERN_ERR "kcapi: handle_message: applid %d state released (%s)\n",
|
|
CAPIMSG_APPID(skb->data), cdb->buf);
|
|
cdebbuf_free(cdb);
|
|
} else
|
|
printk(KERN_ERR "kcapi: handle_message: applid %d state released (%s) cannot trace\n",
|
|
CAPIMSG_APPID(skb->data),
|
|
capi_cmd2str(cmd, subcmd));
|
|
goto error;
|
|
}
|
|
skb_queue_tail(&ap->recv_queue, skb);
|
|
queue_work(kcapi_wq, &ap->recv_work);
|
|
rcu_read_unlock();
|
|
|
|
return;
|
|
|
|
error:
|
|
kfree_skb(skb);
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi_ctr_handle_message);
|
|
|
|
/**
|
|
* capi_ctr_ready() - signal CAPI controller ready
|
|
* @ctr: controller descriptor structure.
|
|
*
|
|
* Called by hardware driver to signal that the controller is up and running.
|
|
*/
|
|
|
|
void capi_ctr_ready(struct capi_ctr *ctr)
|
|
{
|
|
printk(KERN_NOTICE "kcapi: controller [%03d] \"%s\" ready.\n",
|
|
ctr->cnr, ctr->name);
|
|
|
|
notify_push(CAPICTR_UP, ctr->cnr);
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi_ctr_ready);
|
|
|
|
/**
|
|
* capi_ctr_down() - signal CAPI controller not ready
|
|
* @ctr: controller descriptor structure.
|
|
*
|
|
* Called by hardware driver to signal that the controller is down and
|
|
* unavailable for use.
|
|
*/
|
|
|
|
void capi_ctr_down(struct capi_ctr *ctr)
|
|
{
|
|
printk(KERN_NOTICE "kcapi: controller [%03d] down.\n", ctr->cnr);
|
|
|
|
notify_push(CAPICTR_DOWN, ctr->cnr);
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi_ctr_down);
|
|
|
|
/**
|
|
* capi_ctr_suspend_output() - suspend controller
|
|
* @ctr: controller descriptor structure.
|
|
*
|
|
* Called by hardware driver to stop data flow.
|
|
*
|
|
* Note: The caller is responsible for synchronizing concurrent state changes
|
|
* as well as invocations of capi_ctr_handle_message.
|
|
*/
|
|
|
|
void capi_ctr_suspend_output(struct capi_ctr *ctr)
|
|
{
|
|
if (!ctr->blocked) {
|
|
printk(KERN_DEBUG "kcapi: controller [%03d] suspend\n",
|
|
ctr->cnr);
|
|
ctr->blocked = 1;
|
|
}
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi_ctr_suspend_output);
|
|
|
|
/**
|
|
* capi_ctr_resume_output() - resume controller
|
|
* @ctr: controller descriptor structure.
|
|
*
|
|
* Called by hardware driver to resume data flow.
|
|
*
|
|
* Note: The caller is responsible for synchronizing concurrent state changes
|
|
* as well as invocations of capi_ctr_handle_message.
|
|
*/
|
|
|
|
void capi_ctr_resume_output(struct capi_ctr *ctr)
|
|
{
|
|
if (ctr->blocked) {
|
|
printk(KERN_DEBUG "kcapi: controller [%03d] resumed\n",
|
|
ctr->cnr);
|
|
ctr->blocked = 0;
|
|
}
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi_ctr_resume_output);
|
|
|
|
/* ------------------------------------------------------------- */
|
|
|
|
/**
|
|
* attach_capi_ctr() - register CAPI controller
|
|
* @ctr: controller descriptor structure.
|
|
*
|
|
* Called by hardware driver to register a controller with the CAPI subsystem.
|
|
* Return value: 0 on success, error code < 0 on error
|
|
*/
|
|
|
|
int attach_capi_ctr(struct capi_ctr *ctr)
|
|
{
|
|
int i;
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
for (i = 0; i < CAPI_MAXCONTR; i++) {
|
|
if (!capi_controller[i])
|
|
break;
|
|
}
|
|
if (i == CAPI_MAXCONTR) {
|
|
mutex_unlock(&capi_controller_lock);
|
|
printk(KERN_ERR "kcapi: out of controller slots\n");
|
|
return -EBUSY;
|
|
}
|
|
capi_controller[i] = ctr;
|
|
|
|
ctr->nrecvctlpkt = 0;
|
|
ctr->nrecvdatapkt = 0;
|
|
ctr->nsentctlpkt = 0;
|
|
ctr->nsentdatapkt = 0;
|
|
ctr->cnr = i + 1;
|
|
ctr->state = CAPI_CTR_DETECTED;
|
|
ctr->blocked = 0;
|
|
ctr->traceflag = showcapimsgs;
|
|
init_waitqueue_head(&ctr->state_wait_queue);
|
|
|
|
sprintf(ctr->procfn, "capi/controllers/%d", ctr->cnr);
|
|
ctr->procent = proc_create_data(ctr->procfn, 0, NULL, ctr->proc_fops, ctr);
|
|
|
|
ncontrollers++;
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
|
|
printk(KERN_NOTICE "kcapi: controller [%03d]: %s attached\n",
|
|
ctr->cnr, ctr->name);
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL(attach_capi_ctr);
|
|
|
|
/**
|
|
* detach_capi_ctr() - unregister CAPI controller
|
|
* @ctr: controller descriptor structure.
|
|
*
|
|
* Called by hardware driver to remove the registration of a controller
|
|
* with the CAPI subsystem.
|
|
* Return value: 0 on success, error code < 0 on error
|
|
*/
|
|
|
|
int detach_capi_ctr(struct capi_ctr *ctr)
|
|
{
|
|
int err = 0;
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ctr_down(ctr, CAPI_CTR_DETACHED);
|
|
|
|
if (capi_controller[ctr->cnr - 1] != ctr) {
|
|
err = -EINVAL;
|
|
goto unlock_out;
|
|
}
|
|
capi_controller[ctr->cnr - 1] = NULL;
|
|
ncontrollers--;
|
|
|
|
if (ctr->procent)
|
|
remove_proc_entry(ctr->procfn, NULL);
|
|
|
|
printk(KERN_NOTICE "kcapi: controller [%03d]: %s unregistered\n",
|
|
ctr->cnr, ctr->name);
|
|
|
|
unlock_out:
|
|
mutex_unlock(&capi_controller_lock);
|
|
|
|
return err;
|
|
}
|
|
|
|
EXPORT_SYMBOL(detach_capi_ctr);
|
|
|
|
/**
|
|
* register_capi_driver() - register CAPI driver
|
|
* @driver: driver descriptor structure.
|
|
*
|
|
* Called by hardware driver to register itself with the CAPI subsystem.
|
|
*/
|
|
|
|
void register_capi_driver(struct capi_driver *driver)
|
|
{
|
|
mutex_lock(&capi_drivers_lock);
|
|
list_add_tail(&driver->list, &capi_drivers);
|
|
mutex_unlock(&capi_drivers_lock);
|
|
}
|
|
|
|
EXPORT_SYMBOL(register_capi_driver);
|
|
|
|
/**
|
|
* unregister_capi_driver() - unregister CAPI driver
|
|
* @driver: driver descriptor structure.
|
|
*
|
|
* Called by hardware driver to unregister itself from the CAPI subsystem.
|
|
*/
|
|
|
|
void unregister_capi_driver(struct capi_driver *driver)
|
|
{
|
|
mutex_lock(&capi_drivers_lock);
|
|
list_del(&driver->list);
|
|
mutex_unlock(&capi_drivers_lock);
|
|
}
|
|
|
|
EXPORT_SYMBOL(unregister_capi_driver);
|
|
|
|
/* ------------------------------------------------------------- */
|
|
/* -------- CAPI2.0 Interface ---------------------------------- */
|
|
/* ------------------------------------------------------------- */
|
|
|
|
/**
|
|
* capi20_isinstalled() - CAPI 2.0 operation CAPI_INSTALLED
|
|
*
|
|
* Return value: CAPI result code (CAPI_NOERROR if at least one ISDN controller
|
|
* is ready for use, CAPI_REGNOTINSTALLED otherwise)
|
|
*/
|
|
|
|
u16 capi20_isinstalled(void)
|
|
{
|
|
u16 ret = CAPI_REGNOTINSTALLED;
|
|
int i;
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
for (i = 0; i < CAPI_MAXCONTR; i++)
|
|
if (capi_controller[i] &&
|
|
capi_controller[i]->state == CAPI_CTR_RUNNING) {
|
|
ret = CAPI_NOERROR;
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_isinstalled);
|
|
|
|
/**
|
|
* capi20_register() - CAPI 2.0 operation CAPI_REGISTER
|
|
* @ap: CAPI application descriptor structure.
|
|
*
|
|
* Register an application's presence with CAPI.
|
|
* A unique application ID is assigned and stored in @ap->applid.
|
|
* After this function returns successfully, the message receive
|
|
* callback function @ap->recv_message() may be called at any time
|
|
* until capi20_release() has been called for the same @ap.
|
|
* Return value: CAPI result code
|
|
*/
|
|
|
|
u16 capi20_register(struct capi20_appl *ap)
|
|
{
|
|
int i;
|
|
u16 applid;
|
|
|
|
DBG("");
|
|
|
|
if (ap->rparam.datablklen < 128)
|
|
return CAPI_LOGBLKSIZETOSMALL;
|
|
|
|
ap->nrecvctlpkt = 0;
|
|
ap->nrecvdatapkt = 0;
|
|
ap->nsentctlpkt = 0;
|
|
ap->nsentdatapkt = 0;
|
|
mutex_init(&ap->recv_mtx);
|
|
skb_queue_head_init(&ap->recv_queue);
|
|
INIT_WORK(&ap->recv_work, recv_handler);
|
|
ap->release_in_progress = 0;
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
for (applid = 1; applid <= CAPI_MAXAPPL; applid++) {
|
|
if (capi_applications[applid - 1] == NULL)
|
|
break;
|
|
}
|
|
if (applid > CAPI_MAXAPPL) {
|
|
mutex_unlock(&capi_controller_lock);
|
|
return CAPI_TOOMANYAPPLS;
|
|
}
|
|
|
|
ap->applid = applid;
|
|
capi_applications[applid - 1] = ap;
|
|
|
|
for (i = 0; i < CAPI_MAXCONTR; i++) {
|
|
if (!capi_controller[i] ||
|
|
capi_controller[i]->state != CAPI_CTR_RUNNING)
|
|
continue;
|
|
register_appl(capi_controller[i], applid, &ap->rparam);
|
|
}
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
|
|
if (showcapimsgs & 1) {
|
|
printk(KERN_DEBUG "kcapi: appl %d up\n", applid);
|
|
}
|
|
|
|
return CAPI_NOERROR;
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_register);
|
|
|
|
/**
|
|
* capi20_release() - CAPI 2.0 operation CAPI_RELEASE
|
|
* @ap: CAPI application descriptor structure.
|
|
*
|
|
* Terminate an application's registration with CAPI.
|
|
* After this function returns successfully, the message receive
|
|
* callback function @ap->recv_message() will no longer be called.
|
|
* Return value: CAPI result code
|
|
*/
|
|
|
|
u16 capi20_release(struct capi20_appl *ap)
|
|
{
|
|
int i;
|
|
|
|
DBG("applid %#x", ap->applid);
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ap->release_in_progress = 1;
|
|
capi_applications[ap->applid - 1] = NULL;
|
|
|
|
synchronize_rcu();
|
|
|
|
for (i = 0; i < CAPI_MAXCONTR; i++) {
|
|
if (!capi_controller[i] ||
|
|
capi_controller[i]->state != CAPI_CTR_RUNNING)
|
|
continue;
|
|
release_appl(capi_controller[i], ap->applid);
|
|
}
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
|
|
flush_workqueue(kcapi_wq);
|
|
skb_queue_purge(&ap->recv_queue);
|
|
|
|
if (showcapimsgs & 1) {
|
|
printk(KERN_DEBUG "kcapi: appl %d down\n", ap->applid);
|
|
}
|
|
|
|
return CAPI_NOERROR;
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_release);
|
|
|
|
/**
|
|
* capi20_put_message() - CAPI 2.0 operation CAPI_PUT_MESSAGE
|
|
* @ap: CAPI application descriptor structure.
|
|
* @skb: CAPI message.
|
|
*
|
|
* Transfer a single message to CAPI.
|
|
* Return value: CAPI result code
|
|
*/
|
|
|
|
u16 capi20_put_message(struct capi20_appl *ap, struct sk_buff *skb)
|
|
{
|
|
struct capi_ctr *ctr;
|
|
int showctl = 0;
|
|
u8 cmd, subcmd;
|
|
|
|
DBG("applid %#x", ap->applid);
|
|
|
|
if (ncontrollers == 0)
|
|
return CAPI_REGNOTINSTALLED;
|
|
if ((ap->applid == 0) || ap->release_in_progress)
|
|
return CAPI_ILLAPPNR;
|
|
if (skb->len < 12
|
|
|| !capi_cmd_valid(CAPIMSG_COMMAND(skb->data))
|
|
|| !capi_subcmd_valid(CAPIMSG_SUBCOMMAND(skb->data)))
|
|
return CAPI_ILLCMDORSUBCMDORMSGTOSMALL;
|
|
|
|
/*
|
|
* The controller reference is protected by the existence of the
|
|
* application passed to us. We assume that the caller properly
|
|
* synchronizes this service with capi20_release.
|
|
*/
|
|
ctr = get_capi_ctr_by_nr(CAPIMSG_CONTROLLER(skb->data));
|
|
if (!ctr || ctr->state != CAPI_CTR_RUNNING)
|
|
return CAPI_REGNOTINSTALLED;
|
|
if (ctr->blocked)
|
|
return CAPI_SENDQUEUEFULL;
|
|
|
|
cmd = CAPIMSG_COMMAND(skb->data);
|
|
subcmd = CAPIMSG_SUBCOMMAND(skb->data);
|
|
|
|
if (cmd == CAPI_DATA_B3 && subcmd== CAPI_REQ) {
|
|
ctr->nsentdatapkt++;
|
|
ap->nsentdatapkt++;
|
|
if (ctr->traceflag > 2)
|
|
showctl |= 2;
|
|
} else {
|
|
ctr->nsentctlpkt++;
|
|
ap->nsentctlpkt++;
|
|
if (ctr->traceflag)
|
|
showctl |= 2;
|
|
}
|
|
showctl |= (ctr->traceflag & 1);
|
|
if (showctl & 2) {
|
|
if (showctl & 1) {
|
|
printk(KERN_DEBUG "kcapi: put [%03d] id#%d %s len=%u\n",
|
|
CAPIMSG_CONTROLLER(skb->data),
|
|
CAPIMSG_APPID(skb->data),
|
|
capi_cmd2str(cmd, subcmd),
|
|
CAPIMSG_LEN(skb->data));
|
|
} else {
|
|
_cdebbuf *cdb = capi_message2str(skb->data);
|
|
if (cdb) {
|
|
printk(KERN_DEBUG "kcapi: put [%03d] %s\n",
|
|
CAPIMSG_CONTROLLER(skb->data),
|
|
cdb->buf);
|
|
cdebbuf_free(cdb);
|
|
} else
|
|
printk(KERN_DEBUG "kcapi: put [%03d] id#%d %s len=%u cannot trace\n",
|
|
CAPIMSG_CONTROLLER(skb->data),
|
|
CAPIMSG_APPID(skb->data),
|
|
capi_cmd2str(cmd, subcmd),
|
|
CAPIMSG_LEN(skb->data));
|
|
}
|
|
}
|
|
return ctr->send_message(ctr, skb);
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_put_message);
|
|
|
|
/**
|
|
* capi20_get_manufacturer() - CAPI 2.0 operation CAPI_GET_MANUFACTURER
|
|
* @contr: controller number.
|
|
* @buf: result buffer (64 bytes).
|
|
*
|
|
* Retrieve information about the manufacturer of the specified ISDN controller
|
|
* or (for @contr == 0) the driver itself.
|
|
* Return value: CAPI result code
|
|
*/
|
|
|
|
u16 capi20_get_manufacturer(u32 contr, u8 *buf)
|
|
{
|
|
struct capi_ctr *ctr;
|
|
u16 ret;
|
|
|
|
if (contr == 0) {
|
|
strlcpy(buf, capi_manufakturer, CAPI_MANUFACTURER_LEN);
|
|
return CAPI_NOERROR;
|
|
}
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ctr = get_capi_ctr_by_nr(contr);
|
|
if (ctr && ctr->state == CAPI_CTR_RUNNING) {
|
|
strlcpy(buf, ctr->manu, CAPI_MANUFACTURER_LEN);
|
|
ret = CAPI_NOERROR;
|
|
} else
|
|
ret = CAPI_REGNOTINSTALLED;
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
return ret;
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_get_manufacturer);
|
|
|
|
/**
|
|
* capi20_get_version() - CAPI 2.0 operation CAPI_GET_VERSION
|
|
* @contr: controller number.
|
|
* @verp: result structure.
|
|
*
|
|
* Retrieve version information for the specified ISDN controller
|
|
* or (for @contr == 0) the driver itself.
|
|
* Return value: CAPI result code
|
|
*/
|
|
|
|
u16 capi20_get_version(u32 contr, struct capi_version *verp)
|
|
{
|
|
struct capi_ctr *ctr;
|
|
u16 ret;
|
|
|
|
if (contr == 0) {
|
|
*verp = driver_version;
|
|
return CAPI_NOERROR;
|
|
}
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ctr = get_capi_ctr_by_nr(contr);
|
|
if (ctr && ctr->state == CAPI_CTR_RUNNING) {
|
|
memcpy(verp, &ctr->version, sizeof(capi_version));
|
|
ret = CAPI_NOERROR;
|
|
} else
|
|
ret = CAPI_REGNOTINSTALLED;
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
return ret;
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_get_version);
|
|
|
|
/**
|
|
* capi20_get_serial() - CAPI 2.0 operation CAPI_GET_SERIAL_NUMBER
|
|
* @contr: controller number.
|
|
* @serial: result buffer (8 bytes).
|
|
*
|
|
* Retrieve the serial number of the specified ISDN controller
|
|
* or (for @contr == 0) the driver itself.
|
|
* Return value: CAPI result code
|
|
*/
|
|
|
|
u16 capi20_get_serial(u32 contr, u8 *serial)
|
|
{
|
|
struct capi_ctr *ctr;
|
|
u16 ret;
|
|
|
|
if (contr == 0) {
|
|
strlcpy(serial, driver_serial, CAPI_SERIAL_LEN);
|
|
return CAPI_NOERROR;
|
|
}
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ctr = get_capi_ctr_by_nr(contr);
|
|
if (ctr && ctr->state == CAPI_CTR_RUNNING) {
|
|
strlcpy(serial, ctr->serial, CAPI_SERIAL_LEN);
|
|
ret = CAPI_NOERROR;
|
|
} else
|
|
ret = CAPI_REGNOTINSTALLED;
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
return ret;
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_get_serial);
|
|
|
|
/**
|
|
* capi20_get_profile() - CAPI 2.0 operation CAPI_GET_PROFILE
|
|
* @contr: controller number.
|
|
* @profp: result structure.
|
|
*
|
|
* Retrieve capability information for the specified ISDN controller
|
|
* or (for @contr == 0) the number of installed controllers.
|
|
* Return value: CAPI result code
|
|
*/
|
|
|
|
u16 capi20_get_profile(u32 contr, struct capi_profile *profp)
|
|
{
|
|
struct capi_ctr *ctr;
|
|
u16 ret;
|
|
|
|
if (contr == 0) {
|
|
profp->ncontroller = ncontrollers;
|
|
return CAPI_NOERROR;
|
|
}
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ctr = get_capi_ctr_by_nr(contr);
|
|
if (ctr && ctr->state == CAPI_CTR_RUNNING) {
|
|
memcpy(profp, &ctr->profile, sizeof(struct capi_profile));
|
|
ret = CAPI_NOERROR;
|
|
} else
|
|
ret = CAPI_REGNOTINSTALLED;
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
return ret;
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_get_profile);
|
|
|
|
/* Must be called with capi_controller_lock held. */
|
|
static int wait_on_ctr_state(struct capi_ctr *ctr, unsigned int state)
|
|
{
|
|
DEFINE_WAIT(wait);
|
|
int retval = 0;
|
|
|
|
ctr = capi_ctr_get(ctr);
|
|
if (!ctr)
|
|
return -ESRCH;
|
|
|
|
for (;;) {
|
|
prepare_to_wait(&ctr->state_wait_queue, &wait,
|
|
TASK_INTERRUPTIBLE);
|
|
|
|
if (ctr->state == state)
|
|
break;
|
|
if (ctr->state == CAPI_CTR_DETACHED) {
|
|
retval = -ESRCH;
|
|
break;
|
|
}
|
|
if (signal_pending(current)) {
|
|
retval = -EINTR;
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
schedule();
|
|
mutex_lock(&capi_controller_lock);
|
|
}
|
|
finish_wait(&ctr->state_wait_queue, &wait);
|
|
|
|
capi_ctr_put(ctr);
|
|
|
|
return retval;
|
|
}
|
|
|
|
#ifdef AVMB1_COMPAT
|
|
static int old_capi_manufacturer(unsigned int cmd, void __user *data)
|
|
{
|
|
avmb1_loadandconfigdef ldef;
|
|
avmb1_extcarddef cdef;
|
|
avmb1_resetdef rdef;
|
|
capicardparams cparams;
|
|
struct capi_ctr *ctr;
|
|
struct capi_driver *driver = NULL;
|
|
capiloaddata ldata;
|
|
struct list_head *l;
|
|
int retval;
|
|
|
|
switch (cmd) {
|
|
case AVMB1_ADDCARD:
|
|
case AVMB1_ADDCARD_WITH_TYPE:
|
|
if (cmd == AVMB1_ADDCARD) {
|
|
if ((retval = copy_from_user(&cdef, data,
|
|
sizeof(avmb1_carddef))))
|
|
return -EFAULT;
|
|
cdef.cardtype = AVM_CARDTYPE_B1;
|
|
} else {
|
|
if ((retval = copy_from_user(&cdef, data,
|
|
sizeof(avmb1_extcarddef))))
|
|
return -EFAULT;
|
|
}
|
|
cparams.port = cdef.port;
|
|
cparams.irq = cdef.irq;
|
|
cparams.cardnr = cdef.cardnr;
|
|
|
|
mutex_lock(&capi_drivers_lock);
|
|
|
|
switch (cdef.cardtype) {
|
|
case AVM_CARDTYPE_B1:
|
|
list_for_each(l, &capi_drivers) {
|
|
driver = list_entry(l, struct capi_driver, list);
|
|
if (strcmp(driver->name, "b1isa") == 0)
|
|
break;
|
|
}
|
|
break;
|
|
case AVM_CARDTYPE_T1:
|
|
list_for_each(l, &capi_drivers) {
|
|
driver = list_entry(l, struct capi_driver, list);
|
|
if (strcmp(driver->name, "t1isa") == 0)
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
driver = NULL;
|
|
break;
|
|
}
|
|
if (!driver) {
|
|
printk(KERN_ERR "kcapi: driver not loaded.\n");
|
|
retval = -EIO;
|
|
} else if (!driver->add_card) {
|
|
printk(KERN_ERR "kcapi: driver has no add card function.\n");
|
|
retval = -EIO;
|
|
} else
|
|
retval = driver->add_card(driver, &cparams);
|
|
|
|
mutex_unlock(&capi_drivers_lock);
|
|
return retval;
|
|
|
|
case AVMB1_LOAD:
|
|
case AVMB1_LOAD_AND_CONFIG:
|
|
|
|
if (cmd == AVMB1_LOAD) {
|
|
if (copy_from_user(&ldef, data,
|
|
sizeof(avmb1_loaddef)))
|
|
return -EFAULT;
|
|
ldef.t4config.len = 0;
|
|
ldef.t4config.data = NULL;
|
|
} else {
|
|
if (copy_from_user(&ldef, data,
|
|
sizeof(avmb1_loadandconfigdef)))
|
|
return -EFAULT;
|
|
}
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ctr = get_capi_ctr_by_nr(ldef.contr);
|
|
if (!ctr) {
|
|
retval = -EINVAL;
|
|
goto load_unlock_out;
|
|
}
|
|
|
|
if (ctr->load_firmware == NULL) {
|
|
printk(KERN_DEBUG "kcapi: load: no load function\n");
|
|
retval = -ESRCH;
|
|
goto load_unlock_out;
|
|
}
|
|
|
|
if (ldef.t4file.len <= 0) {
|
|
printk(KERN_DEBUG "kcapi: load: invalid parameter: length of t4file is %d ?\n", ldef.t4file.len);
|
|
retval = -EINVAL;
|
|
goto load_unlock_out;
|
|
}
|
|
if (ldef.t4file.data == NULL) {
|
|
printk(KERN_DEBUG "kcapi: load: invalid parameter: dataptr is 0\n");
|
|
retval = -EINVAL;
|
|
goto load_unlock_out;
|
|
}
|
|
|
|
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 (ctr->state != CAPI_CTR_DETECTED) {
|
|
printk(KERN_INFO "kcapi: load: contr=%d not in detect state\n", ldef.contr);
|
|
retval = -EBUSY;
|
|
goto load_unlock_out;
|
|
}
|
|
ctr->state = CAPI_CTR_LOADING;
|
|
|
|
retval = ctr->load_firmware(ctr, &ldata);
|
|
if (retval) {
|
|
ctr->state = CAPI_CTR_DETECTED;
|
|
goto load_unlock_out;
|
|
}
|
|
|
|
retval = wait_on_ctr_state(ctr, CAPI_CTR_RUNNING);
|
|
|
|
load_unlock_out:
|
|
mutex_unlock(&capi_controller_lock);
|
|
return retval;
|
|
|
|
case AVMB1_RESETCARD:
|
|
if (copy_from_user(&rdef, data, sizeof(avmb1_resetdef)))
|
|
return -EFAULT;
|
|
|
|
retval = 0;
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ctr = get_capi_ctr_by_nr(rdef.contr);
|
|
if (!ctr) {
|
|
retval = -ESRCH;
|
|
goto reset_unlock_out;
|
|
}
|
|
|
|
if (ctr->state == CAPI_CTR_DETECTED)
|
|
goto reset_unlock_out;
|
|
|
|
if (ctr->reset_ctr == NULL) {
|
|
printk(KERN_DEBUG "kcapi: reset: no reset function\n");
|
|
retval = -ESRCH;
|
|
goto reset_unlock_out;
|
|
}
|
|
|
|
ctr->reset_ctr(ctr);
|
|
|
|
retval = wait_on_ctr_state(ctr, CAPI_CTR_DETECTED);
|
|
|
|
reset_unlock_out:
|
|
mutex_unlock(&capi_controller_lock);
|
|
return retval;
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* capi20_manufacturer() - CAPI 2.0 operation CAPI_MANUFACTURER
|
|
* @cmd: command.
|
|
* @data: parameter.
|
|
*
|
|
* Perform manufacturer specific command.
|
|
* Return value: CAPI result code
|
|
*/
|
|
|
|
int capi20_manufacturer(unsigned int cmd, void __user *data)
|
|
{
|
|
struct capi_ctr *ctr;
|
|
int retval;
|
|
|
|
switch (cmd) {
|
|
#ifdef AVMB1_COMPAT
|
|
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 (copy_from_user(&fdef, data, sizeof(kcapi_flagdef)))
|
|
return -EFAULT;
|
|
|
|
mutex_lock(&capi_controller_lock);
|
|
|
|
ctr = get_capi_ctr_by_nr(fdef.contr);
|
|
if (ctr) {
|
|
ctr->traceflag = fdef.flag;
|
|
printk(KERN_INFO "kcapi: contr [%03d] set trace=%d\n",
|
|
ctr->cnr, ctr->traceflag);
|
|
retval = 0;
|
|
} else
|
|
retval = -ESRCH;
|
|
|
|
mutex_unlock(&capi_controller_lock);
|
|
|
|
return retval;
|
|
}
|
|
case KCAPI_CMD_ADDCARD:
|
|
{
|
|
struct list_head *l;
|
|
struct capi_driver *driver = NULL;
|
|
capicardparams cparams;
|
|
kcapi_carddef cdef;
|
|
|
|
if ((retval = copy_from_user(&cdef, data, sizeof(cdef))))
|
|
return -EFAULT;
|
|
|
|
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;
|
|
|
|
mutex_lock(&capi_drivers_lock);
|
|
|
|
list_for_each(l, &capi_drivers) {
|
|
driver = list_entry(l, struct capi_driver, list);
|
|
if (strcmp(driver->name, cdef.driver) == 0)
|
|
break;
|
|
}
|
|
if (driver == NULL) {
|
|
printk(KERN_ERR "kcapi: driver \"%s\" not loaded.\n",
|
|
cdef.driver);
|
|
retval = -ESRCH;
|
|
} else if (!driver->add_card) {
|
|
printk(KERN_ERR "kcapi: driver \"%s\" has no add card function.\n", cdef.driver);
|
|
retval = -EIO;
|
|
} else
|
|
retval = driver->add_card(driver, &cparams);
|
|
|
|
mutex_unlock(&capi_drivers_lock);
|
|
return retval;
|
|
}
|
|
|
|
default:
|
|
printk(KERN_ERR "kcapi: manufacturer command %d unknown.\n",
|
|
cmd);
|
|
break;
|
|
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
EXPORT_SYMBOL(capi20_manufacturer);
|
|
|
|
/* ------------------------------------------------------------- */
|
|
/* -------- Init & Cleanup ------------------------------------- */
|
|
/* ------------------------------------------------------------- */
|
|
|
|
/*
|
|
* init / exit functions
|
|
*/
|
|
|
|
static struct notifier_block capictr_nb = {
|
|
.notifier_call = notify_handler,
|
|
.priority = INT_MAX,
|
|
};
|
|
|
|
static int __init kcapi_init(void)
|
|
{
|
|
int err;
|
|
|
|
kcapi_wq = alloc_workqueue("kcapi", 0, 0);
|
|
if (!kcapi_wq)
|
|
return -ENOMEM;
|
|
|
|
register_capictr_notifier(&capictr_nb);
|
|
|
|
err = cdebug_init();
|
|
if (err) {
|
|
unregister_capictr_notifier(&capictr_nb);
|
|
destroy_workqueue(kcapi_wq);
|
|
return err;
|
|
}
|
|
|
|
kcapi_proc_init();
|
|
return 0;
|
|
}
|
|
|
|
static void __exit kcapi_exit(void)
|
|
{
|
|
kcapi_proc_exit();
|
|
|
|
unregister_capictr_notifier(&capictr_nb);
|
|
cdebug_exit();
|
|
destroy_workqueue(kcapi_wq);
|
|
}
|
|
|
|
module_init(kcapi_init);
|
|
module_exit(kcapi_exit);
|