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Diffstat (limited to 'drivers/isdn/hardware/eicon/divasi.c')
-rw-r--r--drivers/isdn/hardware/eicon/divasi.c562
1 files changed, 0 insertions, 562 deletions
diff --git a/drivers/isdn/hardware/eicon/divasi.c b/drivers/isdn/hardware/eicon/divasi.c
deleted file mode 100644
index e7081e0c0e35..000000000000
--- a/drivers/isdn/hardware/eicon/divasi.c
+++ /dev/null
@@ -1,562 +0,0 @@
-/* $Id: divasi.c,v 1.25.6.2 2005/01/31 12:22:20 armin Exp $
- *
- * Driver for Eicon DIVA Server ISDN cards.
- * User Mode IDI Interface
- *
- * Copyright 2000-2003 by Armin Schindler (mac@melware.de)
- * Copyright 2000-2003 Cytronics & Melware (info@melware.de)
- *
- * 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/init.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/skbuff.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
-
-#include "platform.h"
-#include "di_defs.h"
-#include "divasync.h"
-#include "um_xdi.h"
-#include "um_idi.h"
-
-static char *main_revision = "$Revision: 1.25.6.2 $";
-
-static int major;
-
-MODULE_DESCRIPTION("User IDI Interface for Eicon ISDN cards");
-MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
-MODULE_SUPPORTED_DEVICE("DIVA card driver");
-MODULE_LICENSE("GPL");
-
-typedef struct _diva_um_idi_os_context {
- wait_queue_head_t read_wait;
- wait_queue_head_t close_wait;
- struct timer_list diva_timer_id;
- int aborted;
- int adapter_nr;
-} diva_um_idi_os_context_t;
-
-static char *DRIVERNAME = "Eicon DIVA - User IDI (http://www.melware.net)";
-static char *DRIVERLNAME = "diva_idi";
-static char *DEVNAME = "DivasIDI";
-char *DRIVERRELEASE_IDI = "2.0";
-
-extern int idifunc_init(void);
-extern void idifunc_finit(void);
-
-/*
- * helper functions
- */
-static char *getrev(const char *revision)
-{
- char *rev;
- char *p;
- if ((p = strchr(revision, ':'))) {
- rev = p + 2;
- p = strchr(rev, '$');
- *--p = 0;
- } else
- rev = "1.0";
- return rev;
-}
-
-/*
- * LOCALS
- */
-static ssize_t um_idi_read(struct file *file, char __user *buf, size_t count,
- loff_t *offset);
-static ssize_t um_idi_write(struct file *file, const char __user *buf,
- size_t count, loff_t *offset);
-static __poll_t um_idi_poll(struct file *file, poll_table *wait);
-static int um_idi_open(struct inode *inode, struct file *file);
-static int um_idi_release(struct inode *inode, struct file *file);
-static int remove_entity(void *entity);
-static void diva_um_timer_function(struct timer_list *t);
-
-/*
- * proc entry
- */
-extern struct proc_dir_entry *proc_net_eicon;
-static struct proc_dir_entry *um_idi_proc_entry = NULL;
-
-static int um_idi_proc_show(struct seq_file *m, void *v)
-{
- char tmprev[32];
-
- seq_printf(m, "%s\n", DRIVERNAME);
- seq_printf(m, "name : %s\n", DRIVERLNAME);
- seq_printf(m, "release : %s\n", DRIVERRELEASE_IDI);
- strcpy(tmprev, main_revision);
- seq_printf(m, "revision : %s\n", getrev(tmprev));
- seq_printf(m, "build : %s\n", DIVA_BUILD);
- seq_printf(m, "major : %d\n", major);
-
- return 0;
-}
-
-static int __init create_um_idi_proc(void)
-{
- um_idi_proc_entry = proc_create_single(DRIVERLNAME, S_IRUGO,
- proc_net_eicon, um_idi_proc_show);
- if (!um_idi_proc_entry)
- return (0);
- return (1);
-}
-
-static void remove_um_idi_proc(void)
-{
- if (um_idi_proc_entry) {
- remove_proc_entry(DRIVERLNAME, proc_net_eicon);
- um_idi_proc_entry = NULL;
- }
-}
-
-static const struct file_operations divas_idi_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = um_idi_read,
- .write = um_idi_write,
- .poll = um_idi_poll,
- .open = um_idi_open,
- .release = um_idi_release
-};
-
-static void divas_idi_unregister_chrdev(void)
-{
- unregister_chrdev(major, DEVNAME);
-}
-
-static int __init divas_idi_register_chrdev(void)
-{
- if ((major = register_chrdev(0, DEVNAME, &divas_idi_fops)) < 0)
- {
- printk(KERN_ERR "%s: failed to create /dev entry.\n",
- DRIVERLNAME);
- return (0);
- }
-
- return (1);
-}
-
-/*
-** Driver Load
-*/
-static int __init divasi_init(void)
-{
- char tmprev[50];
- int ret = 0;
-
- printk(KERN_INFO "%s\n", DRIVERNAME);
- printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_IDI);
- strcpy(tmprev, main_revision);
- printk("%s Build: %s\n", getrev(tmprev), DIVA_BUILD);
-
- if (!divas_idi_register_chrdev()) {
- ret = -EIO;
- goto out;
- }
-
- if (!create_um_idi_proc()) {
- divas_idi_unregister_chrdev();
- printk(KERN_ERR "%s: failed to create proc entry.\n",
- DRIVERLNAME);
- ret = -EIO;
- goto out;
- }
-
- if (!(idifunc_init())) {
- remove_um_idi_proc();
- divas_idi_unregister_chrdev();
- printk(KERN_ERR "%s: failed to connect to DIDD.\n",
- DRIVERLNAME);
- ret = -EIO;
- goto out;
- }
- printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major);
-
-out:
- return (ret);
-}
-
-
-/*
-** Driver Unload
-*/
-static void __exit divasi_exit(void)
-{
- idifunc_finit();
- remove_um_idi_proc();
- divas_idi_unregister_chrdev();
-
- printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
-}
-
-module_init(divasi_init);
-module_exit(divasi_exit);
-
-
-/*
- * FILE OPERATIONS
- */
-
-static int
-divas_um_idi_copy_to_user(void *os_handle, void *dst, const void *src,
- int length)
-{
- memcpy(dst, src, length);
- return (length);
-}
-
-static ssize_t
-um_idi_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
-{
- diva_um_idi_os_context_t *p_os;
- int ret = -EINVAL;
- void *data;
-
- if (!file->private_data) {
- return (-ENODEV);
- }
-
- if (!
- (p_os =
- (diva_um_idi_os_context_t *) diva_um_id_get_os_context(file->
- private_data)))
- {
- return (-ENODEV);
- }
- if (p_os->aborted) {
- return (-ENODEV);
- }
-
- if (!(data = diva_os_malloc(0, count))) {
- return (-ENOMEM);
- }
-
- ret = diva_um_idi_read(file->private_data,
- file, data, count,
- divas_um_idi_copy_to_user);
- switch (ret) {
- case 0: /* no message available */
- ret = (-EAGAIN);
- break;
- case (-1): /* adapter was removed */
- ret = (-ENODEV);
- break;
- case (-2): /* message_length > length of user buffer */
- ret = (-EFAULT);
- break;
- }
-
- if (ret > 0) {
- if (copy_to_user(buf, data, ret)) {
- ret = (-EFAULT);
- }
- }
-
- diva_os_free(0, data);
- DBG_TRC(("read: ret %d", ret));
- return (ret);
-}
-
-
-static int
-divas_um_idi_copy_from_user(void *os_handle, void *dst, const void *src,
- int length)
-{
- memcpy(dst, src, length);
- return (length);
-}
-
-static int um_idi_open_adapter(struct file *file, int adapter_nr)
-{
- diva_um_idi_os_context_t *p_os;
- void *e =
- divas_um_idi_create_entity((dword) adapter_nr, (void *) file);
-
- if (!(file->private_data = e)) {
- return (0);
- }
- p_os = (diva_um_idi_os_context_t *) diva_um_id_get_os_context(e);
- init_waitqueue_head(&p_os->read_wait);
- init_waitqueue_head(&p_os->close_wait);
- timer_setup(&p_os->diva_timer_id, diva_um_timer_function, 0);
- p_os->aborted = 0;
- p_os->adapter_nr = adapter_nr;
- return (1);
-}
-
-static ssize_t
-um_idi_write(struct file *file, const char __user *buf, size_t count,
- loff_t *offset)
-{
- diva_um_idi_os_context_t *p_os;
- int ret = -EINVAL;
- void *data;
- int adapter_nr = 0;
-
- if (!file->private_data) {
- /* the first write() selects the adapter_nr */
- if (count == sizeof(int)) {
- if (copy_from_user
- ((void *) &adapter_nr, buf,
- count)) return (-EFAULT);
- if (!(um_idi_open_adapter(file, adapter_nr)))
- return (-ENODEV);
- return (count);
- } else
- return (-ENODEV);
- }
-
- if (!(p_os =
- (diva_um_idi_os_context_t *) diva_um_id_get_os_context(file->
- private_data)))
- {
- return (-ENODEV);
- }
- if (p_os->aborted) {
- return (-ENODEV);
- }
-
- if (!(data = diva_os_malloc(0, count))) {
- return (-ENOMEM);
- }
-
- if (copy_from_user(data, buf, count)) {
- ret = -EFAULT;
- } else {
- ret = diva_um_idi_write(file->private_data,
- file, data, count,
- divas_um_idi_copy_from_user);
- switch (ret) {
- case 0: /* no space available */
- ret = (-EAGAIN);
- break;
- case (-1): /* adapter was removed */
- ret = (-ENODEV);
- break;
- case (-2): /* length of user buffer > max message_length */
- ret = (-EFAULT);
- break;
- }
- }
- diva_os_free(0, data);
- DBG_TRC(("write: ret %d", ret));
- return (ret);
-}
-
-static __poll_t um_idi_poll(struct file *file, poll_table *wait)
-{
- diva_um_idi_os_context_t *p_os;
-
- if (!file->private_data) {
- return (EPOLLERR);
- }
-
- if ((!(p_os =
- (diva_um_idi_os_context_t *)
- diva_um_id_get_os_context(file->private_data)))
- || p_os->aborted) {
- return (EPOLLERR);
- }
-
- poll_wait(file, &p_os->read_wait, wait);
-
- if (p_os->aborted) {
- return (EPOLLERR);
- }
-
- switch (diva_user_mode_idi_ind_ready(file->private_data, file)) {
- case (-1):
- return (EPOLLERR);
-
- case 0:
- return (0);
- }
-
- return (EPOLLIN | EPOLLRDNORM);
-}
-
-static int um_idi_open(struct inode *inode, struct file *file)
-{
- return (0);
-}
-
-
-static int um_idi_release(struct inode *inode, struct file *file)
-{
- diva_um_idi_os_context_t *p_os;
- unsigned int adapter_nr;
- int ret = 0;
-
- if (!(file->private_data)) {
- ret = -ENODEV;
- goto out;
- }
-
- if (!(p_os =
- (diva_um_idi_os_context_t *) diva_um_id_get_os_context(file->private_data))) {
- ret = -ENODEV;
- goto out;
- }
-
- adapter_nr = p_os->adapter_nr;
-
- if ((ret = remove_entity(file->private_data))) {
- goto out;
- }
-
- if (divas_um_idi_delete_entity
- ((int) adapter_nr, file->private_data)) {
- ret = -ENODEV;
- goto out;
- }
-
-out:
- return (ret);
-}
-
-int diva_os_get_context_size(void)
-{
- return (sizeof(diva_um_idi_os_context_t));
-}
-
-void diva_os_wakeup_read(void *os_context)
-{
- diva_um_idi_os_context_t *p_os =
- (diva_um_idi_os_context_t *) os_context;
- wake_up_interruptible(&p_os->read_wait);
-}
-
-void diva_os_wakeup_close(void *os_context)
-{
- diva_um_idi_os_context_t *p_os =
- (diva_um_idi_os_context_t *) os_context;
- wake_up_interruptible(&p_os->close_wait);
-}
-
-static
-void diva_um_timer_function(struct timer_list *t)
-{
- diva_um_idi_os_context_t *p_os = from_timer(p_os, t, diva_timer_id);
-
- p_os->aborted = 1;
- wake_up_interruptible(&p_os->read_wait);
- wake_up_interruptible(&p_os->close_wait);
- DBG_ERR(("entity removal watchdog"))
- }
-
-/*
-** If application exits without entity removal this function will remove
-** entity and block until removal is complete
-*/
-static int remove_entity(void *entity)
-{
- struct task_struct *curtask = current;
- diva_um_idi_os_context_t *p_os;
-
- diva_um_idi_stop_wdog(entity);
-
- if (!entity) {
- DBG_FTL(("Zero entity on remove"))
- return (0);
- }
-
- if (!(p_os =
- (diva_um_idi_os_context_t *)
- diva_um_id_get_os_context(entity))) {
- DBG_FTL(("Zero entity os context on remove"))
- return (0);
- }
-
- if (!divas_um_idi_entity_assigned(entity) || p_os->aborted) {
- /*
- Entity is not assigned, also can be removed
- */
- return (0);
- }
-
- DBG_TRC(("E(%08x) check remove", entity))
-
- /*
- If adapter not answers on remove request inside of
- 10 Sec, then adapter is dead
- */
- diva_um_idi_start_wdog(entity);
-
- {
- DECLARE_WAITQUEUE(wait, curtask);
-
- add_wait_queue(&p_os->close_wait, &wait);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (!divas_um_idi_entity_start_remove(entity)
- || p_os->aborted) {
- break;
- }
- schedule();
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&p_os->close_wait, &wait);
- }
-
- DBG_TRC(("E(%08x) start remove", entity))
- {
- DECLARE_WAITQUEUE(wait, curtask);
-
- add_wait_queue(&p_os->close_wait, &wait);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (!divas_um_idi_entity_assigned(entity)
- || p_os->aborted) {
- break;
- }
- schedule();
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&p_os->close_wait, &wait);
- }
-
- DBG_TRC(("E(%08x) remove complete, aborted:%d", entity,
- p_os->aborted))
-
- diva_um_idi_stop_wdog(entity);
-
- p_os->aborted = 0;
-
- return (0);
-}
-
-/*
- * timer watchdog
- */
-void diva_um_idi_start_wdog(void *entity)
-{
- diva_um_idi_os_context_t *p_os;
-
- if (entity &&
- ((p_os =
- (diva_um_idi_os_context_t *)
- diva_um_id_get_os_context(entity)))) {
- mod_timer(&p_os->diva_timer_id, jiffies + 10 * HZ);
- }
-}
-
-void diva_um_idi_stop_wdog(void *entity)
-{
- diva_um_idi_os_context_t *p_os;
-
- if (entity &&
- ((p_os =
- (diva_um_idi_os_context_t *)
- diva_um_id_get_os_context(entity)))) {
- del_timer(&p_os->diva_timer_id);
- }
-}
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