diff options
author | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-03 14:48:52 -0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-03 14:48:52 -0800 |
commit | e779553185f660ece90347ba849eccdfbdf46d6d (patch) | |
tree | 07c2a021b94f4f00876094f90570fa0df397c603 /usb | |
parent | e449d88200084a27997993b78956a6f2b252f2df (diff) | |
download | patches-e779553185f660ece90347ba849eccdfbdf46d6d.tar.gz |
moved usbfs2.patch into the bad/ dir
Diffstat (limited to 'usb')
-rw-r--r-- | usb/usbfs2.patch | 557 |
1 files changed, 0 insertions, 557 deletions
diff --git a/usb/usbfs2.patch b/usb/usbfs2.patch deleted file mode 100644 index 92b5d4a5c623f..0000000000000 --- a/usb/usbfs2.patch +++ /dev/null @@ -1,557 +0,0 @@ ---- - drivers/usb/Kconfig | 2 - drivers/usb/Makefile | 2 - drivers/usb/usbfs2/Kconfig | 7 - drivers/usb/usbfs2/Makefile | 7 - drivers/usb/usbfs2/inode.c | 485 ++++++++++++++++++++++++++++++++++++++++++++ - include/linux/usb.h | 2 - 6 files changed, 505 insertions(+) - ---- /dev/null -+++ gregkh-2.6/drivers/usb/usbfs2/Makefile -@@ -0,0 +1,7 @@ -+usbfs2-objs := inode.o -+ -+obj-$(CONFIG_USB_USBFS2) += usbfs2.o -+ -+ifeq ($(CONFIG_USB_DEBUG),y) -+EXTRA_CFLAGS += -DDEBUG -+endif ---- gregkh-2.6.orig/drivers/usb/Kconfig -+++ gregkh-2.6/drivers/usb/Kconfig -@@ -77,6 +77,8 @@ config USB - - source "drivers/usb/core/Kconfig" - -+source "drivers/usb/usbfs2/Kconfig" -+ - source "drivers/usb/host/Kconfig" - - source "drivers/usb/ip/Kconfig" ---- gregkh-2.6.orig/drivers/usb/Makefile -+++ gregkh-2.6/drivers/usb/Makefile -@@ -8,6 +8,8 @@ obj-$(CONFIG_USB) += core/ - - obj-$(CONFIG_USB_MON) += mon/ - -+obj-$(CONFIG_USB_USBFS2) += usbfs2/ -+ - obj-$(CONFIG_PCI) += host/ - obj-$(CONFIG_USB_EHCI_HCD) += host/ - obj-$(CONFIG_USB_ISP116X_HCD) += host/ ---- /dev/null -+++ gregkh-2.6/drivers/usb/usbfs2/Kconfig -@@ -0,0 +1,7 @@ -+config USB_USBFS2 -+ tristate "USB device filesystem - version 2" -+ depends on USB -+ ---help--- -+ Select this option to get the usb device file system, mark 2 -+ -+ Most users want to say Y here. ---- /dev/null -+++ gregkh-2.6/drivers/usb/usbfs2/inode.c -@@ -0,0 +1,485 @@ -+/* -+ * usbfs2.c - usbfs2 -+ * -+ * Copyright (C) 2006 Greg Kroah-Hartman <gregkh@suse.de> -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License version -+ * 2 as published by the Free Software Foundation. -+ * -+ * Based on security/inode.c which had the following copyright notice: -+ * Copyright (C) 2005 Greg Kroah-Hartman <gregkh@suse.de> -+ */ -+ -+#include <linux/config.h> -+#include <linux/module.h> -+#include <linux/fs.h> -+#include <linux/mount.h> -+#include <linux/pagemap.h> -+#include <linux/init.h> -+#include <linux/namei.h> -+#include <linux/usb.h> -+#include "../core/usb.h" -+ -+#define USBFS2_MAGIC 0x75736266 -+ -+static struct vfsmount *mount; -+static int mount_count; -+ -+/* -+ * TODO: -+ * I think I can get rid of these default_file_ops, but not quite sure... -+ */ -+static ssize_t default_read_file(struct file *file, char __user *buf, -+ size_t count, loff_t *ppos) -+{ -+ return 0; -+} -+ -+static ssize_t default_write_file(struct file *file, const char __user *buf, -+ size_t count, loff_t *ppos) -+{ -+ return count; -+} -+ -+static int default_open(struct inode *inode, struct file *file) -+{ -+ if (inode->u.generic_ip) -+ file->private_data = inode->u.generic_ip; -+ -+ return 0; -+} -+ -+static struct file_operations default_file_ops = { -+ .read = default_read_file, -+ .write = default_write_file, -+ .open = default_open, -+}; -+ -+static struct inode *get_inode(struct super_block *sb, int mode, dev_t dev) -+{ -+ struct inode *inode = new_inode(sb); -+ -+ if (inode) { -+ inode->i_mode = mode; -+ inode->i_uid = 0; -+ inode->i_gid = 0; -+ inode->i_blksize = PAGE_CACHE_SIZE; -+ inode->i_blocks = 0; -+ inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; -+ switch (mode & S_IFMT) { -+ default: -+ init_special_inode(inode, mode, dev); -+ break; -+ case S_IFREG: -+ inode->i_fop = &default_file_ops; -+ break; -+ case S_IFDIR: -+ inode->i_op = &simple_dir_inode_operations; -+ inode->i_fop = &simple_dir_operations; -+ -+ /* directory inodes start off with i_nlink == 2 (for "." entry) */ -+ inode->i_nlink++; -+ break; -+ } -+ } -+ return inode; -+} -+ -+/* SMP-safe */ -+static int mknod(struct inode *dir, struct dentry *dentry, -+ int mode, dev_t dev) -+{ -+ struct inode *inode; -+ int error = -EPERM; -+ -+ if (dentry->d_inode) -+ return -EEXIST; -+ -+ inode = get_inode(dir->i_sb, mode, dev); -+ if (inode) { -+ d_instantiate(dentry, inode); -+ dget(dentry); -+ error = 0; -+ } -+ return error; -+} -+ -+static int mkdir(struct inode *dir, struct dentry *dentry, int mode) -+{ -+ int res; -+ -+ mode = (mode & (S_IRWXUGO | S_ISVTX)) | S_IFDIR; -+ res = mknod(dir, dentry, mode, 0); -+ if (!res) -+ dir->i_nlink++; -+ return res; -+} -+ -+static int create(struct inode *dir, struct dentry *dentry, int mode) -+{ -+ mode = (mode & S_IALLUGO) | S_IFREG; -+ return mknod(dir, dentry, mode, 0); -+} -+ -+static inline int positive(struct dentry *dentry) -+{ -+ return dentry->d_inode && !d_unhashed(dentry); -+} -+ -+static int fill_super(struct super_block *sb, void *data, int silent) -+{ -+ static struct tree_descr files[] = {{""}}; -+ -+ return simple_fill_super(sb, USBFS2_MAGIC, files); -+} -+ -+static struct super_block *get_sb(struct file_system_type *fs_type, -+ int flags, const char *dev_name, -+ void *data) -+{ -+ return get_sb_single(fs_type, flags, data, fill_super); -+} -+ -+static struct file_system_type fs_type = { -+ .owner = THIS_MODULE, -+ .name = "usbfs2", -+ .get_sb = get_sb, -+ .kill_sb = kill_litter_super, -+}; -+ -+static int create_by_name(const char *name, mode_t mode, -+ struct dentry *parent, -+ struct dentry **dentry) -+{ -+ int error = 0; -+ -+ *dentry = NULL; -+ -+ /* If the parent is not specified, we create it in the root. -+ * We need the root dentry to do this, which is in the super -+ * block. A pointer to that is in the struct vfsmount that we -+ * have around. -+ */ -+ if (!parent ) { -+ if (mount && mount->mnt_sb) { -+ parent = mount->mnt_sb->s_root; -+ } -+ } -+ if (!parent) { -+ pr_debug("usbfs2: Ah! can not find a parent!\n"); -+ return -EFAULT; -+ } -+ -+ mutex_lock(&parent->d_inode->i_mutex); -+ *dentry = lookup_one_len(name, parent, strlen(name)); -+ if (!IS_ERR(dentry)) { -+ if ((mode & S_IFMT) == S_IFDIR) -+ error = mkdir(parent->d_inode, *dentry, mode); -+ else -+ error = create(parent->d_inode, *dentry, mode); -+ } else -+ error = PTR_ERR(dentry); -+ mutex_unlock(&parent->d_inode->i_mutex); -+ -+ return error; -+} -+ -+/** -+ * usbfs2_create_file - create a file in the usbfs2 filesystem -+ * -+ * @name: a pointer to a string containing the name of the file to create. -+ * @mode: the permission that the file should have -+ * @parent: a pointer to the parent dentry for this file. This should be a -+ * directory dentry if set. If this paramater is NULL, then the -+ * file will be created in the root of the usbfs2 filesystem. -+ * @data: a pointer to something that the caller will want to get to later -+ * on. The inode.u.generic_ip pointer will point to this value on -+ * the open() call. -+ * @fops: a pointer to a struct file_operations that should be used for -+ * this file. -+ * -+ * This is the basic "create a file" function for usbfs2. It allows for a -+ * wide range of flexibility in createing a file, or a directory (if you -+ * want to create a directory, the usbfs2_create_dir() function is -+ * recommended to be used instead.) -+ * -+ * This function will return a pointer to a dentry if it succeeds. This -+ * pointer must be passed to the usbfs2_remove() function when the file is -+ * to be removed (no automatic cleanup happens if your module is unloaded, -+ * you are responsible here.) If an error occurs, NULL will be returned. -+ * -+ * If usbfs2 is not enabled in the kernel, the value -ENODEV will be -+ * returned. It is not wise to check for this value, but rather, check for -+ * NULL or !NULL instead as to eliminate the need for #ifdef in the calling -+ * code. -+ */ -+static struct dentry *usbfs2_create_file(const char *name, mode_t mode, -+ struct dentry *parent, void *data, -+ struct file_operations *fops) -+{ -+ struct dentry *dentry = NULL; -+ int error; -+ -+ pr_debug("usbfs2: creating file '%s'\n",name); -+ -+ error = simple_pin_fs("usbfs2", &mount, &mount_count); -+ if (error) { -+ dentry = ERR_PTR(error); -+ goto exit; -+ } -+ -+ error = create_by_name(name, mode, parent, &dentry); -+ if (error) { -+ dentry = ERR_PTR(error); -+ simple_release_fs(&mount, &mount_count); -+ goto exit; -+ } -+ -+ if (dentry->d_inode) { -+ if (fops) -+ dentry->d_inode->i_fop = fops; -+ if (data) -+ dentry->d_inode->u.generic_ip = data; -+ } -+exit: -+ return dentry; -+} -+ -+/** -+ * usbfs2_create_dir - create a directory in the usbfs2 filesystem -+ * -+ * @name: a pointer to a string containing the name of the directory to -+ * create. -+ * @parent: a pointer to the parent dentry for this file. This should be a -+ * directory dentry if set. If this paramater is NULL, then the -+ * directory will be created in the root of the usbfs2 filesystem. -+ * -+ * This function creates a directory in usbfs2 with the given name. -+ * -+ * This function will return a pointer to a dentry if it succeeds. This -+ * pointer must be passed to the usbfs2_remove() function when the file is -+ * to be removed (no automatic cleanup happens if your module is unloaded, -+ * you are responsible here.) If an error occurs, NULL will be returned. -+ * -+ * If usbfs2 is not enabled in the kernel, the value -ENODEV will be -+ * returned. It is not wise to check for this value, but rather, check for -+ * NULL or !NULL instead as to eliminate the need for #ifdef in the calling -+ * code. -+ */ -+static struct dentry *usbfs2_create_dir(const char *name, struct dentry *parent) -+{ -+ return usbfs2_create_file(name, S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO, -+ parent, NULL, NULL); -+} -+ -+/** -+ * usbfs2_remove - removes a file or directory from the usbfs2 filesystem -+ * -+ * @dentry: a pointer to a the dentry of the file or directory to be -+ * removed. -+ * -+ * This function removes a file or directory in usbfs2 that was previously -+ * created with a call to another usbfs2 function (like -+ * usbfs2_create_file() or variants thereof.) -+ * -+ * This function is required to be called in order for the file to be -+ * removed, no automatic cleanup of files will happen when a module is -+ * removed, you are responsible here. -+ */ -+static void usbfs2_remove(struct dentry *dentry) -+{ -+ struct dentry *parent; -+ -+ if (!dentry) -+ return; -+ -+ parent = dentry->d_parent; -+ if (!parent || !parent->d_inode) -+ return; -+ -+ mutex_lock(&parent->d_inode->i_mutex); -+ if (positive(dentry)) { -+ if (dentry->d_inode) { -+ if (S_ISDIR(dentry->d_inode->i_mode)) -+ simple_rmdir(parent->d_inode, dentry); -+ else -+ simple_unlink(parent->d_inode, dentry); -+ dput(dentry); -+ } -+ } -+ mutex_unlock(&parent->d_inode->i_mutex); -+ simple_release_fs(&mount, &mount_count); -+} -+ -+ -+static void add_bus(struct usb_bus *bus) -+{ -+ struct dentry *parent; -+ char name[8]; -+ -+ sprintf(name, "%03d", bus->busnum); -+ -+ parent = mount->mnt_sb->s_root; -+ bus->usbfs2_dentry = usbfs2_create_dir(name, parent); -+ if (bus->usbfs2_dentry == NULL) { -+ dev_err(bus->controller, "error creating usbfs2 bus entry"); -+ return; -+ } -+} -+ -+static void remove_bus(struct usb_bus *bus) -+{ -+ if (bus->usbfs2_dentry) { -+ usbfs2_remove(bus->usbfs2_dentry); -+ bus->usbfs2_dentry = NULL; -+ } -+} -+ -+struct ep_object { -+ struct usb_endpoint_descriptor *desc; -+ struct usb_device *udev; -+ struct dentry *dentry; -+}; -+ -+static ssize_t ep_read_file(struct file *file, char __user *buf, -+ size_t count, loff_t *ppos) -+{ -+ struct ep_object *ep_obj = file->private_data; -+ dbg("endpoint %02x read from", ep_obj->desc->bEndpointAddress); -+ return 0; -+} -+ -+static ssize_t ep_write_file(struct file *file, const char __user *buf, -+ size_t count, loff_t *ppos) -+{ -+ struct ep_object *ep_obj = file->private_data; -+ dbg("endpoint %02x written to", ep_obj->desc->bEndpointAddress); -+ return count; -+} -+ -+static int ep_open(struct inode *inode, struct file *file) -+{ -+ if (inode->u.generic_ip) -+ file->private_data = inode->u.generic_ip; -+ return 0; -+} -+ -+static struct file_operations ep_file_ops = { -+ .read = ep_read_file, -+ .write = ep_write_file, -+ .open = ep_open, -+}; -+ -+static void add_endpoint(struct dentry *parent, struct usb_host_endpoint *endpoint, struct usb_device *udev) -+{ -+ struct ep_object *ep_obj; -+ char name[8]; -+ -+ ep_obj = kzalloc(sizeof(struct ep_object), GFP_KERNEL); -+ if (!ep_obj) -+ return; -+ -+ ep_obj->desc = &endpoint->desc; -+ ep_obj->udev = udev; -+ -+ sprintf(name, "ep_%02x", endpoint->desc.bEndpointAddress); -+ ep_obj->dentry = usbfs2_create_file(name, S_IRWXU | S_IRUGO | S_IXUGO, -+ parent, ep_obj, &ep_file_ops); -+} -+ -+static void add_device(struct usb_device *dev) -+{ -+ char name[8]; -+ -+ if (!dev->bus->usbfs2_dentry) { -+ dev_err(&dev->dev, "no directory created for the device's bus\n"); -+ return; -+ } -+ -+ sprintf(name, "%03d", dev->devnum); -+ dev->usbfs2_dentry = usbfs2_create_dir(name, dev->bus->usbfs2_dentry); -+ if (dev->usbfs2_dentry == NULL) { -+ dev_err(&dev->dev, "error creating usbfs2 device entry"); -+ return; -+ } -+ add_endpoint(dev->usbfs2_dentry, &dev->ep0, dev); -+ -+} -+ -+static void remove_device(struct usb_device *dev) -+{ -+ if (dev->usbfs2_dentry) { -+ usbfs2_remove(dev->usbfs2_dentry); -+ dev->usbfs2_dentry = NULL; -+ } -+#if 0 -+ /* FIXME need to do something like this here */ -+ while (!list_empty(&dev->filelist)) { -+ struct dev_state *ds; -+ struct siginfo sinfo; -+ -+ ds = list_entry(dev->filelist.next, struct dev_state, list); -+ wake_up_all(&ds->wait); -+ list_del_init(&ds->list); -+ if (ds->discsignr) { -+ sinfo.si_signo = SIGPIPE; -+ sinfo.si_errno = EPIPE; -+ sinfo.si_code = SI_ASYNCIO; -+ sinfo.si_addr = ds->disccontext; -+ kill_proc_info_as_uid(ds->discsignr, &sinfo, ds->disc_pid, ds->disc_uid, ds->disc_euid); -+ } -+ } -+#endif -+} -+ -+static int usbfs2_notify(struct notifier_block *self, unsigned long action, -+ void *dev) -+{ -+ switch (action) { -+ case USB_DEVICE_ADD: -+ add_device(dev); -+ break; -+ case USB_DEVICE_REMOVE: -+ remove_device(dev); -+ break; -+ case USB_BUS_ADD: -+ add_bus(dev); -+ break; -+ case USB_BUS_REMOVE: -+ remove_bus(dev); -+ break; -+ } -+ return NOTIFY_OK; -+} -+ -+static struct notifier_block usbfs2_nb = { -+ .notifier_call = usbfs2_notify, -+}; -+ -+ -+static int __init usbfs2_init(void) -+{ -+ int retval; -+ -+ retval = register_filesystem(&fs_type); -+ if (retval) -+ goto exit; -+ -+ usb_register_notify(&usbfs2_nb); -+ -+exit: -+ return retval; -+} -+ -+static void __exit usbfs2_exit(void) -+{ -+ usb_unregister_notify(&usbfs2_nb); -+ simple_release_fs(&mount, &mount_count); -+ unregister_filesystem(&fs_type); -+} -+ -+core_initcall(usbfs2_init); -+module_exit(usbfs2_exit); -+MODULE_LICENSE("GPL"); -+ ---- gregkh-2.6.orig/include/linux/usb.h -+++ gregkh-2.6/include/linux/usb.h -@@ -291,6 +291,7 @@ struct usb_bus { - int bandwidth_isoc_reqs; /* number of Isoc. requests */ - - struct dentry *usbfs_dentry; /* usbfs dentry entry for the bus */ -+ struct dentry *usbfs2_dentry; /* usbfs2 dentry entry for the bus */ - - struct class_device *class_dev; /* class device for this bus */ - struct kref kref; /* reference counting for this bus */ -@@ -361,6 +362,7 @@ struct usb_device { - struct list_head filelist; - struct class_device *class_dev; - struct dentry *usbfs_dentry; /* usbfs dentry entry for the device */ -+ struct dentry *usbfs2_dentry; /* usbfs2 dentry entry for the device */ - - /* - * Child devices - these can be either new devices |