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authorJoe Perches <joe@perches.com>2012-01-30 14:54:48 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-08 16:58:04 -0800
commit6222d7a17745f6e48fddda7245e4bb0d58bfeaf0 (patch)
tree0ab0417437b111c9ee24b14d54faa7829177bf57 /drivers/telephony/phonedev.c
parent9823ec9ded836ee7ca4fe5ab7964b9cdc8af010c (diff)
telephony: Move to staging
This stuff is really old and in quite poor shape. Does anyone still use it? If not, I think it's appropriate to let it simmer in staging for a few releases. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/telephony/phonedev.c')
-rw-r--r--drivers/telephony/phonedev.c167
1 files changed, 0 insertions, 167 deletions
diff --git a/drivers/telephony/phonedev.c b/drivers/telephony/phonedev.c
deleted file mode 100644
index 1915af201175..000000000000
--- a/drivers/telephony/phonedev.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Telephony registration for Linux
- *
- * (c) Copyright 1999 Red Hat Software Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Author: Alan Cox, <alan@lxorguk.ukuu.org.uk>
- *
- * Fixes: Mar 01 2000 Thomas Sparr, <thomas.l.sparr@telia.com>
- * phone_register_device now works with unit!=PHONE_UNIT_ANY
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/phonedev.h>
-#include <linux/init.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/kmod.h>
-#include <linux/sem.h>
-#include <linux/mutex.h>
-
-#define PHONE_NUM_DEVICES 256
-
-/*
- * Active devices
- */
-
-static struct phone_device *phone_device[PHONE_NUM_DEVICES];
-static DEFINE_MUTEX(phone_lock);
-
-/*
- * Open a phone device.
- */
-
-static int phone_open(struct inode *inode, struct file *file)
-{
- unsigned int minor = iminor(inode);
- int err = 0;
- struct phone_device *p;
- const struct file_operations *old_fops, *new_fops = NULL;
-
- if (minor >= PHONE_NUM_DEVICES)
- return -ENODEV;
-
- mutex_lock(&phone_lock);
- p = phone_device[minor];
- if (p)
- new_fops = fops_get(p->f_op);
- if (!new_fops) {
- mutex_unlock(&phone_lock);
- request_module("char-major-%d-%d", PHONE_MAJOR, minor);
- mutex_lock(&phone_lock);
- p = phone_device[minor];
- if (p == NULL || (new_fops = fops_get(p->f_op)) == NULL)
- {
- err=-ENODEV;
- goto end;
- }
- }
- old_fops = file->f_op;
- file->f_op = new_fops;
- if (p->open)
- err = p->open(p, file); /* Tell the device it is open */
- if (err) {
- fops_put(file->f_op);
- file->f_op = fops_get(old_fops);
- }
- fops_put(old_fops);
-end:
- mutex_unlock(&phone_lock);
- return err;
-}
-
-/*
- * Telephony For Linux device drivers request registration here.
- */
-
-int phone_register_device(struct phone_device *p, int unit)
-{
- int base;
- int end;
- int i;
-
- base = 0;
- end = PHONE_NUM_DEVICES - 1;
-
- if (unit != PHONE_UNIT_ANY) {
- base = unit;
- end = unit + 1; /* enter the loop at least one time */
- }
-
- mutex_lock(&phone_lock);
- for (i = base; i < end; i++) {
- if (phone_device[i] == NULL) {
- phone_device[i] = p;
- p->minor = i;
- mutex_unlock(&phone_lock);
- return 0;
- }
- }
- mutex_unlock(&phone_lock);
- return -ENFILE;
-}
-
-/*
- * Unregister an unused Telephony for linux device
- */
-
-void phone_unregister_device(struct phone_device *pfd)
-{
- mutex_lock(&phone_lock);
- if (likely(phone_device[pfd->minor] == pfd))
- phone_device[pfd->minor] = NULL;
- mutex_unlock(&phone_lock);
-}
-
-
-static const struct file_operations phone_fops =
-{
- .owner = THIS_MODULE,
- .open = phone_open,
- .llseek = noop_llseek,
-};
-
-/*
- * Board init functions
- */
-
-
-/*
- * Initialise Telephony for linux
- */
-
-static int __init telephony_init(void)
-{
- printk(KERN_INFO "Linux telephony interface: v1.00\n");
- if (register_chrdev(PHONE_MAJOR, "telephony", &phone_fops)) {
- printk("phonedev: unable to get major %d\n", PHONE_MAJOR);
- return -EIO;
- }
-
- return 0;
-}
-
-static void __exit telephony_exit(void)
-{
- unregister_chrdev(PHONE_MAJOR, "telephony");
-}
-
-module_init(telephony_init);
-module_exit(telephony_exit);
-
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(phone_register_device);
-EXPORT_SYMBOL(phone_unregister_device);