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-rw-r--r--v4l/kernel-2.6.tmp/dvbdev.c445
1 files changed, 0 insertions, 445 deletions
diff --git a/v4l/kernel-2.6.tmp/dvbdev.c b/v4l/kernel-2.6.tmp/dvbdev.c
deleted file mode 100644
index 70b1bbe..0000000
--- a/v4l/kernel-2.6.tmp/dvbdev.c
+++ /dev/null
@@ -1,445 +0,0 @@
-/*
- * dvbdev.c
- *
- * Copyright (C) 2000 Ralph Metzler <ralph@convergence.de>
- * & Marcus Metzler <marcus@convergence.de>
- * for convergence integrated media GmbH
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- */
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/device.h>
-#include <linux/fs.h>
-#include <linux/cdev.h>
-#include "compat.h"
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,15)
-#include <linux/mutex.h>
-#endif
-#include "dvbdev.h"
-
-static int dvbdev_debug;
-
-module_param(dvbdev_debug, int, 0644);
-MODULE_PARM_DESC(dvbdev_debug, "Turn on/off device debugging (default:off).");
-
-#define dprintk if (dvbdev_debug) printk
-
-static LIST_HEAD(dvb_adapter_list);
-static DEFINE_MUTEX(dvbdev_register_lock);
-
-static const char * const dnames[] = {
- "video", "audio", "sec", "frontend", "demux", "dvr", "ca",
- "net", "osd"
-};
-
-#define DVB_MAX_ADAPTERS 8
-#define DVB_MAX_IDS 4
-#define nums2minor(num,type,id) ((num << 6) | (id << 4) | type)
-#define MAX_DVB_MINORS (DVB_MAX_ADAPTERS*64)
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,13)
-static struct class *dvb_class;
-#else
-static struct class_simple *dvb_class;
-#endif
-
-static struct dvb_device* dvbdev_find_device (int minor)
-{
- struct dvb_adapter *adap;
-
- list_for_each_entry(adap, &dvb_adapter_list, list_head) {
- struct dvb_device *dev;
- list_for_each_entry(dev, &adap->device_list, list_head)
- if (nums2minor(adap->num, dev->type, dev->id) == minor)
- return dev;
- }
-
- return NULL;
-}
-
-
-static int dvb_device_open(struct inode *inode, struct file *file)
-{
- struct dvb_device *dvbdev;
-
- dvbdev = dvbdev_find_device (iminor(inode));
-
- if (dvbdev && dvbdev->fops) {
- int err = 0;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17)
- const struct file_operations *old_fops;
-#else
- struct file_operations *old_fops;
-#endif
-
- file->private_data = dvbdev;
- old_fops = file->f_op;
- file->f_op = fops_get(dvbdev->fops);
- if(file->f_op->open)
- err = file->f_op->open(inode,file);
- if (err) {
- fops_put(file->f_op);
- file->f_op = fops_get(old_fops);
- }
- fops_put(old_fops);
- return err;
- }
- return -ENODEV;
-}
-
-
-static struct file_operations dvb_device_fops =
-{
- .owner = THIS_MODULE,
- .open = dvb_device_open,
-};
-
-static struct cdev dvb_device_cdev;
-
-int dvb_generic_open(struct inode *inode, struct file *file)
-{
- struct dvb_device *dvbdev = file->private_data;
-
- if (!dvbdev)
- return -ENODEV;
-
- if (!dvbdev->users)
- return -EBUSY;
-
- if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
- if (!dvbdev->readers)
- return -EBUSY;
- dvbdev->readers--;
- } else {
- if (!dvbdev->writers)
- return -EBUSY;
- dvbdev->writers--;
- }
-
- dvbdev->users--;
- return 0;
-}
-EXPORT_SYMBOL(dvb_generic_open);
-
-
-int dvb_generic_release(struct inode *inode, struct file *file)
-{
- struct dvb_device *dvbdev = file->private_data;
-
- if (!dvbdev)
- return -ENODEV;
-
- if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
- dvbdev->readers++;
- } else {
- dvbdev->writers++;
- }
-
- dvbdev->users++;
- return 0;
-}
-EXPORT_SYMBOL(dvb_generic_release);
-
-
-int dvb_generic_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct dvb_device *dvbdev = file->private_data;
-
- if (!dvbdev)
- return -ENODEV;
-
- if (!dvbdev->kernel_ioctl)
- return -EINVAL;
-
- return dvb_usercopy (inode, file, cmd, arg, dvbdev->kernel_ioctl);
-}
-EXPORT_SYMBOL(dvb_generic_ioctl);
-
-
-static int dvbdev_get_free_id (struct dvb_adapter *adap, int type)
-{
- u32 id = 0;
-
- while (id < DVB_MAX_IDS) {
- struct dvb_device *dev;
- list_for_each_entry(dev, &adap->device_list, list_head)
- if (dev->type == type && dev->id == id)
- goto skip;
- return id;
-skip:
- id++;
- }
- return -ENFILE;
-}
-
-
-int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
- const struct dvb_device *template, void *priv, int type)
-{
- struct dvb_device *dvbdev;
- struct file_operations *dvbdevfops;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
- struct device *clsdev;
-#else
- struct class_device *clsdev;
-#endif
- int id;
-
- mutex_lock(&dvbdev_register_lock);
-
- if ((id = dvbdev_get_free_id (adap, type)) < 0){
- mutex_unlock(&dvbdev_register_lock);
- *pdvbdev = NULL;
- printk(KERN_ERR "%s: couldn't find free device id\n", __FUNCTION__);
- return -ENFILE;
- }
-
- *pdvbdev = dvbdev = kmalloc(sizeof(struct dvb_device), GFP_KERNEL);
-
- if (!dvbdev){
- mutex_unlock(&dvbdev_register_lock);
- return -ENOMEM;
- }
-
- dvbdevfops = kzalloc(sizeof(struct file_operations), GFP_KERNEL);
-
- if (!dvbdevfops){
- kfree (dvbdev);
- mutex_unlock(&dvbdev_register_lock);
- return -ENOMEM;
- }
-
- memcpy(dvbdev, template, sizeof(struct dvb_device));
- dvbdev->type = type;
- dvbdev->id = id;
- dvbdev->adapter = adap;
- dvbdev->priv = priv;
- dvbdev->fops = dvbdevfops;
- init_waitqueue_head (&dvbdev->wait_queue);
-
- memcpy(dvbdev->fops, template->fops, sizeof(struct file_operations));
- dvbdev->fops->owner = adap->module;
-
- list_add_tail (&dvbdev->list_head, &adap->device_list);
-
- mutex_unlock(&dvbdev_register_lock);
-
- clsdev = device_create(dvb_class, adap->device,
- MKDEV(DVB_MAJOR, nums2minor(adap->num, type, id)),
- "dvb%d.%s%d", adap->num, dnames[type], id);
- if (IS_ERR(clsdev)) {
- printk(KERN_ERR "%s: failed to create device dvb%d.%s%d (%ld)\n",
- __FUNCTION__, adap->num, dnames[type], id, PTR_ERR(clsdev));
- return PTR_ERR(clsdev);
- }
-
- dprintk(KERN_DEBUG "DVB: register adapter%d/%s%d @ minor: %i (0x%02x)\n",
- adap->num, dnames[type], id, nums2minor(adap->num, type, id),
- nums2minor(adap->num, type, id));
-
- return 0;
-}
-EXPORT_SYMBOL(dvb_register_device);
-
-
-void dvb_unregister_device(struct dvb_device *dvbdev)
-{
- if (!dvbdev)
- return;
-
- device_destroy(dvb_class, MKDEV(DVB_MAJOR, nums2minor(dvbdev->adapter->num,
- dvbdev->type, dvbdev->id)));
-
- list_del (&dvbdev->list_head);
- kfree (dvbdev->fops);
- kfree (dvbdev);
-}
-EXPORT_SYMBOL(dvb_unregister_device);
-
-
-static int dvbdev_get_free_adapter_num (void)
-{
- int num = 0;
-
- while (num < DVB_MAX_ADAPTERS) {
- struct dvb_adapter *adap;
- list_for_each_entry(adap, &dvb_adapter_list, list_head)
- if (adap->num == num)
- goto skip;
- return num;
-skip:
- num++;
- }
-
- return -ENFILE;
-}
-
-
-int dvb_register_adapter(struct dvb_adapter *adap, const char *name, struct module *module, struct device *device)
-{
- int num;
-
- mutex_lock(&dvbdev_register_lock);
-
- if ((num = dvbdev_get_free_adapter_num ()) < 0) {
- mutex_unlock(&dvbdev_register_lock);
- return -ENFILE;
- }
-
- memset (adap, 0, sizeof(struct dvb_adapter));
- INIT_LIST_HEAD (&adap->device_list);
-
- printk(KERN_INFO "DVB: registering new adapter (%s)\n", name);
-
- adap->num = num;
- adap->name = name;
- adap->module = module;
- adap->device = device;
-
- list_add_tail (&adap->list_head, &dvb_adapter_list);
-
- mutex_unlock(&dvbdev_register_lock);
-
- return num;
-}
-EXPORT_SYMBOL(dvb_register_adapter);
-
-
-int dvb_unregister_adapter(struct dvb_adapter *adap)
-{
- mutex_lock(&dvbdev_register_lock);
- list_del (&adap->list_head);
- mutex_unlock(&dvbdev_register_lock);
- return 0;
-}
-EXPORT_SYMBOL(dvb_unregister_adapter);
-
-/* if the miracle happens and "generic_usercopy()" is included into
- the kernel, then this can vanish. please don't make the mistake and
- define this as video_usercopy(). this will introduce a dependecy
- to the v4l "videodev.o" module, which is unnecessary for some
- cards (ie. the budget dvb-cards don't need the v4l module...) */
-int dvb_usercopy(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg,
- int (*func)(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg))
-{
- char sbuf[128];
- void *mbuf = NULL;
- void *parg = NULL;
- int err = -EINVAL;
-
- /* Copy arguments into temp kernel buffer */
- switch (_IOC_DIR(cmd)) {
- case _IOC_NONE:
- /*
- * For this command, the pointer is actually an integer
- * argument.
- */
- parg = (void *) arg;
- break;
- case _IOC_READ: /* some v4l ioctls are marked wrong ... */
- case _IOC_WRITE:
- case (_IOC_WRITE | _IOC_READ):
- if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
- parg = sbuf;
- } else {
- /* too big to allocate from stack */
- mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL);
- if (NULL == mbuf)
- return -ENOMEM;
- parg = mbuf;
- }
-
- err = -EFAULT;
- if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd)))
- goto out;
- break;
- }
-
- /* call driver */
- if ((err = func(inode, file, cmd, parg)) == -ENOIOCTLCMD)
- err = -EINVAL;
-
- if (err < 0)
- goto out;
-
- /* Copy results into user buffer */
- switch (_IOC_DIR(cmd))
- {
- case _IOC_READ:
- case (_IOC_WRITE | _IOC_READ):
- if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
- err = -EFAULT;
- break;
- }
-
-out:
- kfree(mbuf);
- return err;
-}
-
-static int __init init_dvbdev(void)
-{
- int retval;
- dev_t dev = MKDEV(DVB_MAJOR, 0);
-
- if ((retval = register_chrdev_region(dev, MAX_DVB_MINORS, "DVB")) != 0) {
- printk(KERN_ERR "dvb-core: unable to get major %d\n", DVB_MAJOR);
- return retval;
- }
-
- cdev_init(&dvb_device_cdev, &dvb_device_fops);
- if ((retval = cdev_add(&dvb_device_cdev, dev, MAX_DVB_MINORS)) != 0) {
- printk(KERN_ERR "dvb-core: unable register character device\n");
- goto error;
- }
-
- dvb_class = class_create(THIS_MODULE, "dvb");
- if (IS_ERR(dvb_class)) {
- retval = PTR_ERR(dvb_class);
- goto error;
- }
- return 0;
-
-error:
- cdev_del(&dvb_device_cdev);
- unregister_chrdev_region(dev, MAX_DVB_MINORS);
- return retval;
-}
-
-
-static void __exit exit_dvbdev(void)
-{
- class_destroy(dvb_class);
- cdev_del(&dvb_device_cdev);
- unregister_chrdev_region(MKDEV(DVB_MAJOR, 0), MAX_DVB_MINORS);
-}
-
-subsys_initcall(init_dvbdev);
-module_exit(exit_dvbdev);
-
-MODULE_DESCRIPTION("DVB Core Driver");
-MODULE_AUTHOR("Marcus Metzler, Ralph Metzler, Holger Waechtler");
-MODULE_LICENSE("GPL");