Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
new file mode 100644
index 0000000..a047bc3
--- /dev/null
+++ b/drivers/usb/core/devio.c
@@ -0,0 +1,1483 @@
+/*****************************************************************************/
+
+/*
+ * devio.c -- User space communication with USB devices.
+ *
+ * Copyright (C) 1999-2000 Thomas Sailer (sailer@ife.ee.ethz.ch)
+ *
+ * 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.
+ *
+ * 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 General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: devio.c,v 1.7 2000/02/01 17:28:48 fliegl Exp $
+ *
+ * This file implements the usbfs/x/y files, where
+ * x is the bus number and y the device number.
+ *
+ * It allows user space programs/"drivers" to communicate directly
+ * with USB devices without intervening kernel driver.
+ *
+ * Revision history
+ * 22.12.1999 0.1 Initial release (split from proc_usb.c)
+ * 04.01.2000 0.2 Turned into its own filesystem
+ */
+
+/*****************************************************************************/
+
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/signal.h>
+#include <linux/poll.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usbdevice_fs.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+#include <linux/moduleparam.h>
+
+#include "hcd.h" /* for usbcore internals */
+#include "usb.h"
+
+struct async {
+ struct list_head asynclist;
+ struct dev_state *ps;
+ struct task_struct *task;
+ unsigned int signr;
+ unsigned int ifnum;
+ void __user *userbuffer;
+ void __user *userurb;
+ struct urb *urb;
+};
+
+static int usbfs_snoop = 0;
+module_param (usbfs_snoop, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC (usbfs_snoop, "true to log all usbfs traffic");
+
+#define snoop(dev, format, arg...) \
+ do { \
+ if (usbfs_snoop) \
+ dev_info( dev , format , ## arg); \
+ } while (0)
+
+
+#define MAX_USBFS_BUFFER_SIZE 16384
+
+static inline int connected (struct usb_device *dev)
+{
+ return dev->state != USB_STATE_NOTATTACHED;
+}
+
+static loff_t usbdev_lseek(struct file *file, loff_t offset, int orig)
+{
+ loff_t ret;
+
+ lock_kernel();
+
+ switch (orig) {
+ case 0:
+ file->f_pos = offset;
+ ret = file->f_pos;
+ break;
+ case 1:
+ file->f_pos += offset;
+ ret = file->f_pos;
+ break;
+ case 2:
+ default:
+ ret = -EINVAL;
+ }
+
+ unlock_kernel();
+ return ret;
+}
+
+static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+{
+ struct dev_state *ps = (struct dev_state *)file->private_data;
+ struct usb_device *dev = ps->dev;
+ ssize_t ret = 0;
+ unsigned len;
+ loff_t pos;
+ int i;
+
+ pos = *ppos;
+ usb_lock_device(dev);
+ if (!connected(dev)) {
+ ret = -ENODEV;
+ goto err;
+ } else if (pos < 0) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (pos < sizeof(struct usb_device_descriptor)) {
+ struct usb_device_descriptor *desc = kmalloc(sizeof(*desc), GFP_KERNEL);
+ if (!desc) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ memcpy(desc, &dev->descriptor, sizeof(dev->descriptor));
+ le16_to_cpus(&desc->bcdUSB);
+ le16_to_cpus(&desc->idVendor);
+ le16_to_cpus(&desc->idProduct);
+ le16_to_cpus(&desc->bcdDevice);
+
+ len = sizeof(struct usb_device_descriptor) - pos;
+ if (len > nbytes)
+ len = nbytes;
+ if (copy_to_user(buf, ((char *)desc) + pos, len)) {
+ kfree(desc);
+ ret = -EFAULT;
+ goto err;
+ }
+ kfree(desc);
+
+ *ppos += len;
+ buf += len;
+ nbytes -= len;
+ ret += len;
+ }
+
+ pos = sizeof(struct usb_device_descriptor);
+ for (i = 0; nbytes && i < dev->descriptor.bNumConfigurations; i++) {
+ struct usb_config_descriptor *config =
+ (struct usb_config_descriptor *)dev->rawdescriptors[i];
+ unsigned int length = le16_to_cpu(config->wTotalLength);
+
+ if (*ppos < pos + length) {
+
+ /* The descriptor may claim to be longer than it
+ * really is. Here is the actual allocated length. */
+ unsigned alloclen =
+ le16_to_cpu(dev->config[i].desc.wTotalLength);
+
+ len = length - (*ppos - pos);
+ if (len > nbytes)
+ len = nbytes;
+
+ /* Simply don't write (skip over) unallocated parts */
+ if (alloclen > (*ppos - pos)) {
+ alloclen -= (*ppos - pos);
+ if (copy_to_user(buf,
+ dev->rawdescriptors[i] + (*ppos - pos),
+ min(len, alloclen))) {
+ ret = -EFAULT;
+ goto err;
+ }
+ }
+
+ *ppos += len;
+ buf += len;
+ nbytes -= len;
+ ret += len;
+ }
+
+ pos += length;
+ }
+
+err:
+ usb_unlock_device(dev);
+ return ret;
+}
+
+/*
+ * async list handling
+ */
+
+static struct async *alloc_async(unsigned int numisoframes)
+{
+ unsigned int assize = sizeof(struct async) + numisoframes * sizeof(struct usb_iso_packet_descriptor);
+ struct async *as = kmalloc(assize, GFP_KERNEL);
+ if (!as)
+ return NULL;
+ memset(as, 0, assize);
+ as->urb = usb_alloc_urb(numisoframes, GFP_KERNEL);
+ if (!as->urb) {
+ kfree(as);
+ return NULL;
+ }
+ return as;
+}
+
+static void free_async(struct async *as)
+{
+ if (as->urb->transfer_buffer)
+ kfree(as->urb->transfer_buffer);
+ if (as->urb->setup_packet)
+ kfree(as->urb->setup_packet);
+ usb_free_urb(as->urb);
+ kfree(as);
+}
+
+static inline void async_newpending(struct async *as)
+{
+ struct dev_state *ps = as->ps;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ps->lock, flags);
+ list_add_tail(&as->asynclist, &ps->async_pending);
+ spin_unlock_irqrestore(&ps->lock, flags);
+}
+
+static inline void async_removepending(struct async *as)
+{
+ struct dev_state *ps = as->ps;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ps->lock, flags);
+ list_del_init(&as->asynclist);
+ spin_unlock_irqrestore(&ps->lock, flags);
+}
+
+static inline struct async *async_getcompleted(struct dev_state *ps)
+{
+ unsigned long flags;
+ struct async *as = NULL;
+
+ spin_lock_irqsave(&ps->lock, flags);
+ if (!list_empty(&ps->async_completed)) {
+ as = list_entry(ps->async_completed.next, struct async, asynclist);
+ list_del_init(&as->asynclist);
+ }
+ spin_unlock_irqrestore(&ps->lock, flags);
+ return as;
+}
+
+static inline struct async *async_getpending(struct dev_state *ps, void __user *userurb)
+{
+ unsigned long flags;
+ struct async *as;
+
+ spin_lock_irqsave(&ps->lock, flags);
+ list_for_each_entry(as, &ps->async_pending, asynclist)
+ if (as->userurb == userurb) {
+ list_del_init(&as->asynclist);
+ spin_unlock_irqrestore(&ps->lock, flags);
+ return as;
+ }
+ spin_unlock_irqrestore(&ps->lock, flags);
+ return NULL;
+}
+
+static void async_completed(struct urb *urb, struct pt_regs *regs)
+{
+ struct async *as = (struct async *)urb->context;
+ struct dev_state *ps = as->ps;
+ struct siginfo sinfo;
+
+ spin_lock(&ps->lock);
+ list_move_tail(&as->asynclist, &ps->async_completed);
+ spin_unlock(&ps->lock);
+ if (as->signr) {
+ sinfo.si_signo = as->signr;
+ sinfo.si_errno = as->urb->status;
+ sinfo.si_code = SI_ASYNCIO;
+ sinfo.si_addr = as->userurb;
+ send_sig_info(as->signr, &sinfo, as->task);
+ }
+ wake_up(&ps->wait);
+}
+
+static void destroy_async (struct dev_state *ps, struct list_head *list)
+{
+ struct async *as;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ps->lock, flags);
+ while (!list_empty(list)) {
+ as = list_entry(list->next, struct async, asynclist);
+ list_del_init(&as->asynclist);
+
+ /* drop the spinlock so the completion handler can run */
+ spin_unlock_irqrestore(&ps->lock, flags);
+ usb_kill_urb(as->urb);
+ spin_lock_irqsave(&ps->lock, flags);
+ }
+ spin_unlock_irqrestore(&ps->lock, flags);
+ as = async_getcompleted(ps);
+ while (as) {
+ free_async(as);
+ as = async_getcompleted(ps);
+ }
+}
+
+static void destroy_async_on_interface (struct dev_state *ps, unsigned int ifnum)
+{
+ struct list_head *p, *q, hitlist;
+ unsigned long flags;
+
+ INIT_LIST_HEAD(&hitlist);
+ spin_lock_irqsave(&ps->lock, flags);
+ list_for_each_safe(p, q, &ps->async_pending)
+ if (ifnum == list_entry(p, struct async, asynclist)->ifnum)
+ list_move_tail(p, &hitlist);
+ spin_unlock_irqrestore(&ps->lock, flags);
+ destroy_async(ps, &hitlist);
+}
+
+static inline void destroy_all_async(struct dev_state *ps)
+{
+ destroy_async(ps, &ps->async_pending);
+}
+
+/*
+ * interface claims are made only at the request of user level code,
+ * which can also release them (explicitly or by closing files).
+ * they're also undone when devices disconnect.
+ */
+
+static int driver_probe (struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ return -ENODEV;
+}
+
+static void driver_disconnect(struct usb_interface *intf)
+{
+ struct dev_state *ps = usb_get_intfdata (intf);
+ unsigned int ifnum = intf->altsetting->desc.bInterfaceNumber;
+
+ if (!ps)
+ return;
+
+ /* NOTE: this relies on usbcore having canceled and completed
+ * all pending I/O requests; 2.6 does that.
+ */
+
+ if (likely(ifnum < 8*sizeof(ps->ifclaimed)))
+ clear_bit(ifnum, &ps->ifclaimed);
+ else
+ warn("interface number %u out of range", ifnum);
+
+ usb_set_intfdata (intf, NULL);
+
+ /* force async requests to complete */
+ destroy_async_on_interface(ps, ifnum);
+}
+
+struct usb_driver usbfs_driver = {
+ .owner = THIS_MODULE,
+ .name = "usbfs",
+ .probe = driver_probe,
+ .disconnect = driver_disconnect,
+};
+
+static int claimintf(struct dev_state *ps, unsigned int ifnum)
+{
+ struct usb_device *dev = ps->dev;
+ struct usb_interface *intf;
+ int err;
+
+ if (ifnum >= 8*sizeof(ps->ifclaimed))
+ return -EINVAL;
+ /* already claimed */
+ if (test_bit(ifnum, &ps->ifclaimed))
+ return 0;
+
+ /* lock against other changes to driver bindings */
+ down_write(&usb_bus_type.subsys.rwsem);
+ intf = usb_ifnum_to_if(dev, ifnum);
+ if (!intf)
+ err = -ENOENT;
+ else
+ err = usb_driver_claim_interface(&usbfs_driver, intf, ps);
+ up_write(&usb_bus_type.subsys.rwsem);
+ if (err == 0)
+ set_bit(ifnum, &ps->ifclaimed);
+ return err;
+}
+
+static int releaseintf(struct dev_state *ps, unsigned int ifnum)
+{
+ struct usb_device *dev;
+ struct usb_interface *intf;
+ int err;
+
+ err = -EINVAL;
+ if (ifnum >= 8*sizeof(ps->ifclaimed))
+ return err;
+ dev = ps->dev;
+ /* lock against other changes to driver bindings */
+ down_write(&usb_bus_type.subsys.rwsem);
+ intf = usb_ifnum_to_if(dev, ifnum);
+ if (!intf)
+ err = -ENOENT;
+ else if (test_and_clear_bit(ifnum, &ps->ifclaimed)) {
+ usb_driver_release_interface(&usbfs_driver, intf);
+ err = 0;
+ }
+ up_write(&usb_bus_type.subsys.rwsem);
+ return err;
+}
+
+static int checkintf(struct dev_state *ps, unsigned int ifnum)
+{
+ if (ps->dev->state != USB_STATE_CONFIGURED)
+ return -EHOSTUNREACH;
+ if (ifnum >= 8*sizeof(ps->ifclaimed))
+ return -EINVAL;
+ if (test_bit(ifnum, &ps->ifclaimed))
+ return 0;
+ /* if not yet claimed, claim it for the driver */
+ dev_warn(&ps->dev->dev, "usbfs: process %d (%s) did not claim interface %u before use\n",
+ current->pid, current->comm, ifnum);
+ return claimintf(ps, ifnum);
+}
+
+static int findintfep(struct usb_device *dev, unsigned int ep)
+{
+ unsigned int i, j, e;
+ struct usb_interface *intf;
+ struct usb_host_interface *alts;
+ struct usb_endpoint_descriptor *endpt;
+
+ if (ep & ~(USB_DIR_IN|0xf))
+ return -EINVAL;
+ if (!dev->actconfig)
+ return -ESRCH;
+ for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) {
+ intf = dev->actconfig->interface[i];
+ for (j = 0; j < intf->num_altsetting; j++) {
+ alts = &intf->altsetting[j];
+ for (e = 0; e < alts->desc.bNumEndpoints; e++) {
+ endpt = &alts->endpoint[e].desc;
+ if (endpt->bEndpointAddress == ep)
+ return alts->desc.bInterfaceNumber;
+ }
+ }
+ }
+ return -ENOENT;
+}
+
+static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype, unsigned int index)
+{
+ int ret = 0;
+
+ if (ps->dev->state != USB_STATE_CONFIGURED)
+ return -EHOSTUNREACH;
+ if (USB_TYPE_VENDOR == (USB_TYPE_MASK & requesttype))
+ return 0;
+
+ index &= 0xff;
+ switch (requesttype & USB_RECIP_MASK) {
+ case USB_RECIP_ENDPOINT:
+ if ((ret = findintfep(ps->dev, index)) >= 0)
+ ret = checkintf(ps, ret);
+ break;
+
+ case USB_RECIP_INTERFACE:
+ ret = checkintf(ps, index);
+ break;
+ }
+ return ret;
+}
+
+/*
+ * file operations
+ */
+static int usbdev_open(struct inode *inode, struct file *file)
+{
+ struct usb_device *dev;
+ struct dev_state *ps;
+ int ret;
+
+ /*
+ * no locking necessary here, as chrdev_open has the kernel lock
+ * (still acquire the kernel lock for safety)
+ */
+ ret = -ENOMEM;
+ if (!(ps = kmalloc(sizeof(struct dev_state), GFP_KERNEL)))
+ goto out_nolock;
+
+ lock_kernel();
+ ret = -ENOENT;
+ dev = usb_get_dev(inode->u.generic_ip);
+ if (!dev) {
+ kfree(ps);
+ goto out;
+ }
+ ret = 0;
+ ps->dev = dev;
+ ps->file = file;
+ spin_lock_init(&ps->lock);
+ INIT_LIST_HEAD(&ps->async_pending);
+ INIT_LIST_HEAD(&ps->async_completed);
+ init_waitqueue_head(&ps->wait);
+ ps->discsignr = 0;
+ ps->disctask = current;
+ ps->disccontext = NULL;
+ ps->ifclaimed = 0;
+ wmb();
+ list_add_tail(&ps->list, &dev->filelist);
+ file->private_data = ps;
+ out:
+ unlock_kernel();
+ out_nolock:
+ return ret;
+}
+
+static int usbdev_release(struct inode *inode, struct file *file)
+{
+ struct dev_state *ps = (struct dev_state *)file->private_data;
+ struct usb_device *dev = ps->dev;
+ unsigned int ifnum;
+
+ usb_lock_device(dev);
+ list_del_init(&ps->list);
+ for (ifnum = 0; ps->ifclaimed && ifnum < 8*sizeof(ps->ifclaimed);
+ ifnum++) {
+ if (test_bit(ifnum, &ps->ifclaimed))
+ releaseintf(ps, ifnum);
+ }
+ destroy_all_async(ps);
+ usb_unlock_device(dev);
+ usb_put_dev(dev);
+ ps->dev = NULL;
+ kfree(ps);
+ return 0;
+}
+
+static int proc_control(struct dev_state *ps, void __user *arg)
+{
+ struct usb_device *dev = ps->dev;
+ struct usbdevfs_ctrltransfer ctrl;
+ unsigned int tmo;
+ unsigned char *tbuf;
+ int i, j, ret;
+
+ if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
+ return -EFAULT;
+ if ((ret = check_ctrlrecip(ps, ctrl.bRequestType, ctrl.wIndex)))
+ return ret;
+ if (ctrl.wLength > PAGE_SIZE)
+ return -EINVAL;
+ if (!(tbuf = (unsigned char *)__get_free_page(GFP_KERNEL)))
+ return -ENOMEM;
+ tmo = ctrl.timeout;
+ if (ctrl.bRequestType & 0x80) {
+ if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data, ctrl.wLength)) {
+ free_page((unsigned long)tbuf);
+ return -EINVAL;
+ }
+ snoop(&dev->dev, "control read: bRequest=%02x bRrequestType=%02x wValue=%04x wIndex=%04x\n",
+ ctrl.bRequest, ctrl.bRequestType, ctrl.wValue, ctrl.wIndex);
+
+ usb_unlock_device(dev);
+ i = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ctrl.bRequest, ctrl.bRequestType,
+ ctrl.wValue, ctrl.wIndex, tbuf, ctrl.wLength, tmo);
+ usb_lock_device(dev);
+ if ((i > 0) && ctrl.wLength) {
+ if (usbfs_snoop) {
+ dev_info(&dev->dev, "control read: data ");
+ for (j = 0; j < ctrl.wLength; ++j)
+ printk ("%02x ", (unsigned char)(tbuf)[j]);
+ printk("\n");
+ }
+ if (copy_to_user(ctrl.data, tbuf, ctrl.wLength)) {
+ free_page((unsigned long)tbuf);
+ return -EFAULT;
+ }
+ }
+ } else {
+ if (ctrl.wLength) {
+ if (copy_from_user(tbuf, ctrl.data, ctrl.wLength)) {
+ free_page((unsigned long)tbuf);
+ return -EFAULT;
+ }
+ }
+ snoop(&dev->dev, "control write: bRequest=%02x bRrequestType=%02x wValue=%04x wIndex=%04x\n",
+ ctrl.bRequest, ctrl.bRequestType, ctrl.wValue, ctrl.wIndex);
+ if (usbfs_snoop) {
+ dev_info(&dev->dev, "control write: data: ");
+ for (j = 0; j < ctrl.wLength; ++j)
+ printk ("%02x ", (unsigned char)(tbuf)[j]);
+ printk("\n");
+ }
+ usb_unlock_device(dev);
+ i = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ctrl.bRequest, ctrl.bRequestType,
+ ctrl.wValue, ctrl.wIndex, tbuf, ctrl.wLength, tmo);
+ usb_lock_device(dev);
+ }
+ free_page((unsigned long)tbuf);
+ if (i<0 && i != -EPIPE) {
+ dev_printk(KERN_DEBUG, &dev->dev, "usbfs: USBDEVFS_CONTROL "
+ "failed cmd %s rqt %u rq %u len %u ret %d\n",
+ current->comm, ctrl.bRequestType, ctrl.bRequest,
+ ctrl.wLength, i);
+ }
+ return i;
+}
+
+static int proc_bulk(struct dev_state *ps, void __user *arg)
+{
+ struct usb_device *dev = ps->dev;
+ struct usbdevfs_bulktransfer bulk;
+ unsigned int tmo, len1, pipe;
+ int len2;
+ unsigned char *tbuf;
+ int i, ret;
+
+ if (copy_from_user(&bulk, arg, sizeof(bulk)))
+ return -EFAULT;
+ if ((ret = findintfep(ps->dev, bulk.ep)) < 0)
+ return ret;
+ if ((ret = checkintf(ps, ret)))
+ return ret;
+ if (bulk.ep & USB_DIR_IN)
+ pipe = usb_rcvbulkpipe(dev, bulk.ep & 0x7f);
+ else
+ pipe = usb_sndbulkpipe(dev, bulk.ep & 0x7f);
+ if (!usb_maxpacket(dev, pipe, !(bulk.ep & USB_DIR_IN)))
+ return -EINVAL;
+ len1 = bulk.len;
+ if (len1 > MAX_USBFS_BUFFER_SIZE)
+ return -EINVAL;
+ if (!(tbuf = kmalloc(len1, GFP_KERNEL)))
+ return -ENOMEM;
+ tmo = bulk.timeout;
+ if (bulk.ep & 0x80) {
+ if (len1 && !access_ok(VERIFY_WRITE, bulk.data, len1)) {
+ kfree(tbuf);
+ return -EINVAL;
+ }
+ usb_unlock_device(dev);
+ i = usb_bulk_msg(dev, pipe, tbuf, len1, &len2, tmo);
+ usb_lock_device(dev);
+ if (!i && len2) {
+ if (copy_to_user(bulk.data, tbuf, len2)) {
+ kfree(tbuf);
+ return -EFAULT;
+ }
+ }
+ } else {
+ if (len1) {
+ if (copy_from_user(tbuf, bulk.data, len1)) {
+ kfree(tbuf);
+ return -EFAULT;
+ }
+ }
+ usb_unlock_device(dev);
+ i = usb_bulk_msg(dev, pipe, tbuf, len1, &len2, tmo);
+ usb_lock_device(dev);
+ }
+ kfree(tbuf);
+ if (i < 0)
+ return i;
+ return len2;
+}
+
+static int proc_resetep(struct dev_state *ps, void __user *arg)
+{
+ unsigned int ep;
+ int ret;
+
+ if (get_user(ep, (unsigned int __user *)arg))
+ return -EFAULT;
+ if ((ret = findintfep(ps->dev, ep)) < 0)
+ return ret;
+ if ((ret = checkintf(ps, ret)))
+ return ret;
+ usb_settoggle(ps->dev, ep & 0xf, !(ep & USB_DIR_IN), 0);
+ return 0;
+}
+
+static int proc_clearhalt(struct dev_state *ps, void __user *arg)
+{
+ unsigned int ep;
+ int pipe;
+ int ret;
+
+ if (get_user(ep, (unsigned int __user *)arg))
+ return -EFAULT;
+ if ((ret = findintfep(ps->dev, ep)) < 0)
+ return ret;
+ if ((ret = checkintf(ps, ret)))
+ return ret;
+ if (ep & USB_DIR_IN)
+ pipe = usb_rcvbulkpipe(ps->dev, ep & 0x7f);
+ else
+ pipe = usb_sndbulkpipe(ps->dev, ep & 0x7f);
+
+ return usb_clear_halt(ps->dev, pipe);
+}
+
+
+static int proc_getdriver(struct dev_state *ps, void __user *arg)
+{
+ struct usbdevfs_getdriver gd;
+ struct usb_interface *intf;
+ int ret;
+
+ if (copy_from_user(&gd, arg, sizeof(gd)))
+ return -EFAULT;
+ down_read(&usb_bus_type.subsys.rwsem);
+ intf = usb_ifnum_to_if(ps->dev, gd.interface);
+ if (!intf || !intf->dev.driver)
+ ret = -ENODATA;
+ else {
+ strncpy(gd.driver, intf->dev.driver->name,
+ sizeof(gd.driver));
+ ret = (copy_to_user(arg, &gd, sizeof(gd)) ? -EFAULT : 0);
+ }
+ up_read(&usb_bus_type.subsys.rwsem);
+ return ret;
+}
+
+static int proc_connectinfo(struct dev_state *ps, void __user *arg)
+{
+ struct usbdevfs_connectinfo ci;
+
+ ci.devnum = ps->dev->devnum;
+ ci.slow = ps->dev->speed == USB_SPEED_LOW;
+ if (copy_to_user(arg, &ci, sizeof(ci)))
+ return -EFAULT;
+ return 0;
+}
+
+static int proc_resetdevice(struct dev_state *ps)
+{
+ return usb_reset_device(ps->dev);
+
+}
+
+static int proc_setintf(struct dev_state *ps, void __user *arg)
+{
+ struct usbdevfs_setinterface setintf;
+ int ret;
+
+ if (copy_from_user(&setintf, arg, sizeof(setintf)))
+ return -EFAULT;
+ if ((ret = checkintf(ps, setintf.interface)))
+ return ret;
+ return usb_set_interface(ps->dev, setintf.interface,
+ setintf.altsetting);
+}
+
+static int proc_setconfig(struct dev_state *ps, void __user *arg)
+{
+ unsigned int u;
+ int status = 0;
+ struct usb_host_config *actconfig;
+
+ if (get_user(u, (unsigned int __user *)arg))
+ return -EFAULT;
+
+ actconfig = ps->dev->actconfig;
+
+ /* Don't touch the device if any interfaces are claimed.
+ * It could interfere with other drivers' operations, and if
+ * an interface is claimed by usbfs it could easily deadlock.
+ */
+ if (actconfig) {
+ int i;
+
+ for (i = 0; i < actconfig->desc.bNumInterfaces; ++i) {
+ if (usb_interface_claimed(actconfig->interface[i])) {
+ dev_warn (&ps->dev->dev,
+ "usbfs: interface %d claimed "
+ "while '%s' sets config #%d\n",
+ actconfig->interface[i]
+ ->cur_altsetting
+ ->desc.bInterfaceNumber,
+ current->comm, u);
+#if 0 /* FIXME: enable in 2.6.10 or so */
+ status = -EBUSY;
+ break;
+#endif
+ }
+ }
+ }
+
+ /* SET_CONFIGURATION is often abused as a "cheap" driver reset,
+ * so avoid usb_set_configuration()'s kick to sysfs
+ */
+ if (status == 0) {
+ if (actconfig && actconfig->desc.bConfigurationValue == u)
+ status = usb_reset_configuration(ps->dev);
+ else
+ status = usb_set_configuration(ps->dev, u);
+ }
+
+ return status;
+}
+
+
+static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
+ struct usbdevfs_iso_packet_desc __user *iso_frame_desc,
+ void __user *arg)
+{
+ struct usbdevfs_iso_packet_desc *isopkt = NULL;
+ struct usb_host_endpoint *ep;
+ struct async *as;
+ struct usb_ctrlrequest *dr = NULL;
+ unsigned int u, totlen, isofrmlen;
+ int ret, interval = 0, ifnum = -1;
+
+ if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP|USBDEVFS_URB_SHORT_NOT_OK|
+ URB_NO_FSBR|URB_ZERO_PACKET))
+ return -EINVAL;
+ if (!uurb->buffer)
+ return -EINVAL;
+ if (uurb->signr != 0 && (uurb->signr < SIGRTMIN || uurb->signr > SIGRTMAX))
+ return -EINVAL;
+ if (!(uurb->type == USBDEVFS_URB_TYPE_CONTROL && (uurb->endpoint & ~USB_ENDPOINT_DIR_MASK) == 0)) {
+ if ((ifnum = findintfep(ps->dev, uurb->endpoint)) < 0)
+ return ifnum;
+ if ((ret = checkintf(ps, ifnum)))
+ return ret;
+ }
+ if ((uurb->endpoint & USB_ENDPOINT_DIR_MASK) != 0)
+ ep = ps->dev->ep_in [uurb->endpoint & USB_ENDPOINT_NUMBER_MASK];
+ else
+ ep = ps->dev->ep_out [uurb->endpoint & USB_ENDPOINT_NUMBER_MASK];
+ if (!ep)
+ return -ENOENT;
+ switch(uurb->type) {
+ case USBDEVFS_URB_TYPE_CONTROL:
+ if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ != USB_ENDPOINT_XFER_CONTROL)
+ return -EINVAL;
+ /* min 8 byte setup packet, max arbitrary */
+ if (uurb->buffer_length < 8 || uurb->buffer_length > PAGE_SIZE)
+ return -EINVAL;
+ if (!(dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL)))
+ return -ENOMEM;
+ if (copy_from_user(dr, uurb->buffer, 8)) {
+ kfree(dr);
+ return -EFAULT;
+ }
+ if (uurb->buffer_length < (le16_to_cpup(&dr->wLength) + 8)) {
+ kfree(dr);
+ return -EINVAL;
+ }
+ if ((ret = check_ctrlrecip(ps, dr->bRequestType, le16_to_cpup(&dr->wIndex)))) {
+ kfree(dr);
+ return ret;
+ }
+ uurb->endpoint = (uurb->endpoint & ~USB_ENDPOINT_DIR_MASK) | (dr->bRequestType & USB_ENDPOINT_DIR_MASK);
+ uurb->number_of_packets = 0;
+ uurb->buffer_length = le16_to_cpup(&dr->wLength);
+ uurb->buffer += 8;
+ if (!access_ok((uurb->endpoint & USB_DIR_IN) ? VERIFY_WRITE : VERIFY_READ, uurb->buffer, uurb->buffer_length)) {
+ kfree(dr);
+ return -EFAULT;
+ }
+ break;
+
+ case USBDEVFS_URB_TYPE_BULK:
+ switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+ case USB_ENDPOINT_XFER_CONTROL:
+ case USB_ENDPOINT_XFER_ISOC:
+ return -EINVAL;
+ /* allow single-shot interrupt transfers, at bogus rates */
+ }
+ uurb->number_of_packets = 0;
+ if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
+ return -EINVAL;
+ if (!access_ok((uurb->endpoint & USB_DIR_IN) ? VERIFY_WRITE : VERIFY_READ, uurb->buffer, uurb->buffer_length))
+ return -EFAULT;
+ break;
+
+ case USBDEVFS_URB_TYPE_ISO:
+ /* arbitrary limit */
+ if (uurb->number_of_packets < 1 || uurb->number_of_packets > 128)
+ return -EINVAL;
+ if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ != USB_ENDPOINT_XFER_ISOC)
+ return -EINVAL;
+ interval = 1 << min (15, ep->desc.bInterval - 1);
+ isofrmlen = sizeof(struct usbdevfs_iso_packet_desc) * uurb->number_of_packets;
+ if (!(isopkt = kmalloc(isofrmlen, GFP_KERNEL)))
+ return -ENOMEM;
+ if (copy_from_user(isopkt, iso_frame_desc, isofrmlen)) {
+ kfree(isopkt);
+ return -EFAULT;
+ }
+ for (totlen = u = 0; u < uurb->number_of_packets; u++) {
+ if (isopkt[u].length > 1023) {
+ kfree(isopkt);
+ return -EINVAL;
+ }
+ totlen += isopkt[u].length;
+ }
+ if (totlen > 32768) {
+ kfree(isopkt);
+ return -EINVAL;
+ }
+ uurb->buffer_length = totlen;
+ break;
+
+ case USBDEVFS_URB_TYPE_INTERRUPT:
+ uurb->number_of_packets = 0;
+ if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ != USB_ENDPOINT_XFER_INT)
+ return -EINVAL;
+ if (ps->dev->speed == USB_SPEED_HIGH)
+ interval = 1 << min (15, ep->desc.bInterval - 1);
+ else
+ interval = ep->desc.bInterval;
+ if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
+ return -EINVAL;
+ if (!access_ok((uurb->endpoint & USB_DIR_IN) ? VERIFY_WRITE : VERIFY_READ, uurb->buffer, uurb->buffer_length))
+ return -EFAULT;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ if (!(as = alloc_async(uurb->number_of_packets))) {
+ if (isopkt)
+ kfree(isopkt);
+ if (dr)
+ kfree(dr);
+ return -ENOMEM;
+ }
+ if (!(as->urb->transfer_buffer = kmalloc(uurb->buffer_length, GFP_KERNEL))) {
+ if (isopkt)
+ kfree(isopkt);
+ if (dr)
+ kfree(dr);
+ free_async(as);
+ return -ENOMEM;
+ }
+ as->urb->dev = ps->dev;
+ as->urb->pipe = (uurb->type << 30) | __create_pipe(ps->dev, uurb->endpoint & 0xf) | (uurb->endpoint & USB_DIR_IN);
+ as->urb->transfer_flags = uurb->flags;
+ as->urb->transfer_buffer_length = uurb->buffer_length;
+ as->urb->setup_packet = (unsigned char*)dr;
+ as->urb->start_frame = uurb->start_frame;
+ as->urb->number_of_packets = uurb->number_of_packets;
+ as->urb->interval = interval;
+ as->urb->context = as;
+ as->urb->complete = async_completed;
+ for (totlen = u = 0; u < uurb->number_of_packets; u++) {
+ as->urb->iso_frame_desc[u].offset = totlen;
+ as->urb->iso_frame_desc[u].length = isopkt[u].length;
+ totlen += isopkt[u].length;
+ }
+ if (isopkt)
+ kfree(isopkt);
+ as->ps = ps;
+ as->userurb = arg;
+ if (uurb->endpoint & USB_DIR_IN)
+ as->userbuffer = uurb->buffer;
+ else
+ as->userbuffer = NULL;
+ as->signr = uurb->signr;
+ as->ifnum = ifnum;
+ as->task = current;
+ if (!(uurb->endpoint & USB_DIR_IN)) {
+ if (copy_from_user(as->urb->transfer_buffer, uurb->buffer, as->urb->transfer_buffer_length)) {
+ free_async(as);
+ return -EFAULT;
+ }
+ }
+ async_newpending(as);
+ if ((ret = usb_submit_urb(as->urb, GFP_KERNEL))) {
+ dev_printk(KERN_DEBUG, &ps->dev->dev, "usbfs: usb_submit_urb returned %d\n", ret);
+ async_removepending(as);
+ free_async(as);
+ return ret;
+ }
+ return 0;
+}
+
+static int proc_submiturb(struct dev_state *ps, void __user *arg)
+{
+ struct usbdevfs_urb uurb;
+
+ if (copy_from_user(&uurb, arg, sizeof(uurb)))
+ return -EFAULT;
+
+ return proc_do_submiturb(ps, &uurb, (((struct usbdevfs_urb __user *)arg)->iso_frame_desc), arg);
+}
+
+static int proc_unlinkurb(struct dev_state *ps, void __user *arg)
+{
+ struct async *as;
+
+ as = async_getpending(ps, arg);
+ if (!as)
+ return -EINVAL;
+ usb_kill_urb(as->urb);
+ return 0;
+}
+
+static int processcompl(struct async *as, void __user * __user *arg)
+{
+ struct urb *urb = as->urb;
+ struct usbdevfs_urb __user *userurb = as->userurb;
+ void __user *addr = as->userurb;
+ unsigned int i;
+
+ if (as->userbuffer)
+ if (copy_to_user(as->userbuffer, urb->transfer_buffer, urb->transfer_buffer_length))
+ return -EFAULT;
+ if (put_user(urb->status, &userurb->status))
+ return -EFAULT;
+ if (put_user(urb->actual_length, &userurb->actual_length))
+ return -EFAULT;
+ if (put_user(urb->error_count, &userurb->error_count))
+ return -EFAULT;
+
+ if (!(usb_pipeisoc(urb->pipe)))
+ return 0;
+ for (i = 0; i < urb->number_of_packets; i++) {
+ if (put_user(urb->iso_frame_desc[i].actual_length,
+ &userurb->iso_frame_desc[i].actual_length))
+ return -EFAULT;
+ if (put_user(urb->iso_frame_desc[i].status,
+ &userurb->iso_frame_desc[i].status))
+ return -EFAULT;
+ }
+
+ free_async(as);
+
+ if (put_user(addr, (void __user * __user *)arg))
+ return -EFAULT;
+ return 0;
+}
+
+static struct async* reap_as(struct dev_state *ps)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ struct async *as = NULL;
+ struct usb_device *dev = ps->dev;
+
+ add_wait_queue(&ps->wait, &wait);
+ for (;;) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ if ((as = async_getcompleted(ps)))
+ break;
+ if (signal_pending(current))
+ break;
+ usb_unlock_device(dev);
+ schedule();
+ usb_lock_device(dev);
+ }
+ remove_wait_queue(&ps->wait, &wait);
+ set_current_state(TASK_RUNNING);
+ return as;
+}
+
+static int proc_reapurb(struct dev_state *ps, void __user *arg)
+{
+ struct async *as = reap_as(ps);
+ if (as)
+ return processcompl(as, (void __user * __user *)arg);
+ if (signal_pending(current))
+ return -EINTR;
+ return -EIO;
+}
+
+static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg)
+{
+ struct async *as;
+
+ if (!(as = async_getcompleted(ps)))
+ return -EAGAIN;
+ return processcompl(as, (void __user * __user *)arg);
+}
+
+#ifdef CONFIG_COMPAT
+
+static int get_urb32(struct usbdevfs_urb *kurb,
+ struct usbdevfs_urb32 __user *uurb)
+{
+ __u32 uptr;
+ if (get_user(kurb->type, &uurb->type) ||
+ __get_user(kurb->endpoint, &uurb->endpoint) ||
+ __get_user(kurb->status, &uurb->status) ||
+ __get_user(kurb->flags, &uurb->flags) ||
+ __get_user(kurb->buffer_length, &uurb->buffer_length) ||
+ __get_user(kurb->actual_length, &uurb->actual_length) ||
+ __get_user(kurb->start_frame, &uurb->start_frame) ||
+ __get_user(kurb->number_of_packets, &uurb->number_of_packets) ||
+ __get_user(kurb->error_count, &uurb->error_count) ||
+ __get_user(kurb->signr, &uurb->signr))
+ return -EFAULT;
+
+ if (__get_user(uptr, &uurb->buffer))
+ return -EFAULT;
+ kurb->buffer = compat_ptr(uptr);
+ if (__get_user(uptr, &uurb->buffer))
+ return -EFAULT;
+ kurb->usercontext = compat_ptr(uptr);
+
+ return 0;
+}
+
+static int proc_submiturb_compat(struct dev_state *ps, void __user *arg)
+{
+ struct usbdevfs_urb uurb;
+
+ if (get_urb32(&uurb,(struct usbdevfs_urb32 *)arg))
+ return -EFAULT;
+
+ return proc_do_submiturb(ps, &uurb, ((struct usbdevfs_urb __user *)arg)->iso_frame_desc, arg);
+}
+
+static int processcompl_compat(struct async *as, void __user * __user *arg)
+{
+ struct urb *urb = as->urb;
+ struct usbdevfs_urb32 __user *userurb = as->userurb;
+ void __user *addr = as->userurb;
+ unsigned int i;
+
+ if (as->userbuffer)
+ if (copy_to_user(as->userbuffer, urb->transfer_buffer, urb->transfer_buffer_length))
+ return -EFAULT;
+ if (put_user(urb->status, &userurb->status))
+ return -EFAULT;
+ if (put_user(urb->actual_length, &userurb->actual_length))
+ return -EFAULT;
+ if (put_user(urb->error_count, &userurb->error_count))
+ return -EFAULT;
+
+ if (!(usb_pipeisoc(urb->pipe)))
+ return 0;
+ for (i = 0; i < urb->number_of_packets; i++) {
+ if (put_user(urb->iso_frame_desc[i].actual_length,
+ &userurb->iso_frame_desc[i].actual_length))
+ return -EFAULT;
+ if (put_user(urb->iso_frame_desc[i].status,
+ &userurb->iso_frame_desc[i].status))
+ return -EFAULT;
+ }
+
+ free_async(as);
+ if (put_user((u32)(u64)addr, (u32 __user *)arg))
+ return -EFAULT;
+ return 0;
+}
+
+static int proc_reapurb_compat(struct dev_state *ps, void __user *arg)
+{
+ struct async *as = reap_as(ps);
+ if (as)
+ return processcompl_compat(as, (void __user * __user *)arg);
+ if (signal_pending(current))
+ return -EINTR;
+ return -EIO;
+}
+
+static int proc_reapurbnonblock_compat(struct dev_state *ps, void __user *arg)
+{
+ struct async *as;
+
+ printk("reapurbnblock\n");
+ if (!(as = async_getcompleted(ps)))
+ return -EAGAIN;
+ printk("reap got as %p\n", as);
+ return processcompl_compat(as, (void __user * __user *)arg);
+}
+
+#endif
+
+static int proc_disconnectsignal(struct dev_state *ps, void __user *arg)
+{
+ struct usbdevfs_disconnectsignal ds;
+
+ if (copy_from_user(&ds, arg, sizeof(ds)))
+ return -EFAULT;
+ if (ds.signr != 0 && (ds.signr < SIGRTMIN || ds.signr > SIGRTMAX))
+ return -EINVAL;
+ ps->discsignr = ds.signr;
+ ps->disccontext = ds.context;
+ return 0;
+}
+
+static int proc_claiminterface(struct dev_state *ps, void __user *arg)
+{
+ unsigned int ifnum;
+
+ if (get_user(ifnum, (unsigned int __user *)arg))
+ return -EFAULT;
+ return claimintf(ps, ifnum);
+}
+
+static int proc_releaseinterface(struct dev_state *ps, void __user *arg)
+{
+ unsigned int ifnum;
+ int ret;
+
+ if (get_user(ifnum, (unsigned int __user *)arg))
+ return -EFAULT;
+ if ((ret = releaseintf(ps, ifnum)) < 0)
+ return ret;
+ destroy_async_on_interface (ps, ifnum);
+ return 0;
+}
+
+static int proc_ioctl (struct dev_state *ps, void __user *arg)
+{
+ struct usbdevfs_ioctl ctrl;
+ int size;
+ void *buf = NULL;
+ int retval = 0;
+ struct usb_interface *intf = NULL;
+ struct usb_driver *driver = NULL;
+ int i;
+
+ /* get input parameters and alloc buffer */
+ if (copy_from_user(&ctrl, arg, sizeof (ctrl)))
+ return -EFAULT;
+ if ((size = _IOC_SIZE (ctrl.ioctl_code)) > 0) {
+ if ((buf = kmalloc (size, GFP_KERNEL)) == NULL)
+ return -ENOMEM;
+ if ((_IOC_DIR(ctrl.ioctl_code) & _IOC_WRITE)) {
+ if (copy_from_user (buf, ctrl.data, size)) {
+ kfree (buf);
+ return -EFAULT;
+ }
+ } else {
+ memset (buf, 0, size);
+ }
+ }
+
+ if (!connected(ps->dev)) {
+ if (buf)
+ kfree(buf);
+ return -ENODEV;
+ }
+
+ if (ps->dev->state != USB_STATE_CONFIGURED)
+ retval = -EHOSTUNREACH;
+ else if (!(intf = usb_ifnum_to_if (ps->dev, ctrl.ifno)))
+ retval = -EINVAL;
+ else switch (ctrl.ioctl_code) {
+
+ /* disconnect kernel driver from interface */
+ case USBDEVFS_DISCONNECT:
+
+ /* don't allow the user to unbind the hub driver from
+ * a hub with children to manage */
+ for (i = 0; i < ps->dev->maxchild; ++i) {
+ if (ps->dev->children[i])
+ retval = -EBUSY;
+ }
+ if (retval)
+ break;
+
+ down_write(&usb_bus_type.subsys.rwsem);
+ if (intf->dev.driver) {
+ driver = to_usb_driver(intf->dev.driver);
+ dev_dbg (&intf->dev, "disconnect by usbfs\n");
+ usb_driver_release_interface(driver, intf);
+ } else
+ retval = -ENODATA;
+ up_write(&usb_bus_type.subsys.rwsem);
+ break;
+
+ /* let kernel drivers try to (re)bind to the interface */
+ case USBDEVFS_CONNECT:
+ usb_unlock_device(ps->dev);
+ usb_lock_all_devices();
+ bus_rescan_devices(intf->dev.bus);
+ usb_unlock_all_devices();
+ usb_lock_device(ps->dev);
+ break;
+
+ /* talk directly to the interface's driver */
+ default:
+ down_read(&usb_bus_type.subsys.rwsem);
+ if (intf->dev.driver)
+ driver = to_usb_driver(intf->dev.driver);
+ if (driver == NULL || driver->ioctl == NULL) {
+ retval = -ENOTTY;
+ } else {
+ retval = driver->ioctl (intf, ctrl.ioctl_code, buf);
+ if (retval == -ENOIOCTLCMD)
+ retval = -ENOTTY;
+ }
+ up_read(&usb_bus_type.subsys.rwsem);
+ }
+
+ /* cleanup and return */
+ if (retval >= 0
+ && (_IOC_DIR (ctrl.ioctl_code) & _IOC_READ) != 0
+ && size > 0
+ && copy_to_user (ctrl.data, buf, size) != 0)
+ retval = -EFAULT;
+ if (buf != NULL)
+ kfree (buf);
+ return retval;
+}
+
+/*
+ * NOTE: All requests here that have interface numbers as parameters
+ * are assuming that somehow the configuration has been prevented from
+ * changing. But there's no mechanism to ensure that...
+ */
+static int usbdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct dev_state *ps = (struct dev_state *)file->private_data;
+ struct usb_device *dev = ps->dev;
+ void __user *p = (void __user *)arg;
+ int ret = -ENOTTY;
+
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EPERM;
+ usb_lock_device(dev);
+ if (!connected(dev)) {
+ usb_unlock_device(dev);
+ return -ENODEV;
+ }
+
+ switch (cmd) {
+ case USBDEVFS_CONTROL:
+ snoop(&dev->dev, "%s: CONTROL\n", __FUNCTION__);
+ ret = proc_control(ps, p);
+ if (ret >= 0)
+ inode->i_mtime = CURRENT_TIME;
+ break;
+
+ case USBDEVFS_BULK:
+ snoop(&dev->dev, "%s: BULK\n", __FUNCTION__);
+ ret = proc_bulk(ps, p);
+ if (ret >= 0)
+ inode->i_mtime = CURRENT_TIME;
+ break;
+
+ case USBDEVFS_RESETEP:
+ snoop(&dev->dev, "%s: RESETEP\n", __FUNCTION__);
+ ret = proc_resetep(ps, p);
+ if (ret >= 0)
+ inode->i_mtime = CURRENT_TIME;
+ break;
+
+ case USBDEVFS_RESET:
+ snoop(&dev->dev, "%s: RESET\n", __FUNCTION__);
+ ret = proc_resetdevice(ps);
+ break;
+
+ case USBDEVFS_CLEAR_HALT:
+ snoop(&dev->dev, "%s: CLEAR_HALT\n", __FUNCTION__);
+ ret = proc_clearhalt(ps, p);
+ if (ret >= 0)
+ inode->i_mtime = CURRENT_TIME;
+ break;
+
+ case USBDEVFS_GETDRIVER:
+ snoop(&dev->dev, "%s: GETDRIVER\n", __FUNCTION__);
+ ret = proc_getdriver(ps, p);
+ break;
+
+ case USBDEVFS_CONNECTINFO:
+ snoop(&dev->dev, "%s: CONNECTINFO\n", __FUNCTION__);
+ ret = proc_connectinfo(ps, p);
+ break;
+
+ case USBDEVFS_SETINTERFACE:
+ snoop(&dev->dev, "%s: SETINTERFACE\n", __FUNCTION__);
+ ret = proc_setintf(ps, p);
+ break;
+
+ case USBDEVFS_SETCONFIGURATION:
+ snoop(&dev->dev, "%s: SETCONFIGURATION\n", __FUNCTION__);
+ ret = proc_setconfig(ps, p);
+ break;
+
+ case USBDEVFS_SUBMITURB:
+ snoop(&dev->dev, "%s: SUBMITURB\n", __FUNCTION__);
+ ret = proc_submiturb(ps, p);
+ if (ret >= 0)
+ inode->i_mtime = CURRENT_TIME;
+ break;
+
+#ifdef CONFIG_COMPAT
+
+ case USBDEVFS_SUBMITURB32:
+ snoop(&dev->dev, "%s: SUBMITURB32\n", __FUNCTION__);
+ ret = proc_submiturb_compat(ps, p);
+ if (ret >= 0)
+ inode->i_mtime = CURRENT_TIME;
+ break;
+
+ case USBDEVFS_REAPURB32:
+ snoop(&dev->dev, "%s: REAPURB32\n", __FUNCTION__);
+ ret = proc_reapurb_compat(ps, p);
+ break;
+
+ case USBDEVFS_REAPURBNDELAY32:
+ snoop(&dev->dev, "%s: REAPURBDELAY32\n", __FUNCTION__);
+ ret = proc_reapurbnonblock_compat(ps, p);
+ break;
+
+#endif
+
+ case USBDEVFS_DISCARDURB:
+ snoop(&dev->dev, "%s: DISCARDURB\n", __FUNCTION__);
+ ret = proc_unlinkurb(ps, p);
+ break;
+
+ case USBDEVFS_REAPURB:
+ snoop(&dev->dev, "%s: REAPURB\n", __FUNCTION__);
+ ret = proc_reapurb(ps, p);
+ break;
+
+ case USBDEVFS_REAPURBNDELAY:
+ snoop(&dev->dev, "%s: REAPURBDELAY\n", __FUNCTION__);
+ ret = proc_reapurbnonblock(ps, p);
+ break;
+
+ case USBDEVFS_DISCSIGNAL:
+ snoop(&dev->dev, "%s: DISCSIGNAL\n", __FUNCTION__);
+ ret = proc_disconnectsignal(ps, p);
+ break;
+
+ case USBDEVFS_CLAIMINTERFACE:
+ snoop(&dev->dev, "%s: CLAIMINTERFACE\n", __FUNCTION__);
+ ret = proc_claiminterface(ps, p);
+ break;
+
+ case USBDEVFS_RELEASEINTERFACE:
+ snoop(&dev->dev, "%s: RELEASEINTERFACE\n", __FUNCTION__);
+ ret = proc_releaseinterface(ps, p);
+ break;
+
+ case USBDEVFS_IOCTL:
+ snoop(&dev->dev, "%s: IOCTL\n", __FUNCTION__);
+ ret = proc_ioctl(ps, p);
+ break;
+ }
+ usb_unlock_device(dev);
+ if (ret >= 0)
+ inode->i_atime = CURRENT_TIME;
+ return ret;
+}
+
+/* No kernel lock - fine */
+static unsigned int usbdev_poll(struct file *file, struct poll_table_struct *wait)
+{
+ struct dev_state *ps = (struct dev_state *)file->private_data;
+ unsigned int mask = 0;
+
+ poll_wait(file, &ps->wait, wait);
+ if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed))
+ mask |= POLLOUT | POLLWRNORM;
+ if (!connected(ps->dev))
+ mask |= POLLERR | POLLHUP;
+ return mask;
+}
+
+struct file_operations usbfs_device_file_operations = {
+ .llseek = usbdev_lseek,
+ .read = usbdev_read,
+ .poll = usbdev_poll,
+ .ioctl = usbdev_ioctl,
+ .open = usbdev_open,
+ .release = usbdev_release,
+};
