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-rw-r--r--drivers/usb/core/devices.c2
-rw-r--r--drivers/usb/core/devio.c110
-rw-r--r--drivers/usb/core/hcd-pci.c2
-rw-r--r--drivers/usb/core/hcd.c22
-rw-r--r--drivers/usb/core/hcd.h2
-rw-r--r--drivers/usb/core/hub.c76
-rw-r--r--drivers/usb/core/message.c8
-rw-r--r--drivers/usb/core/sysfs.c12
-rw-r--r--drivers/usb/core/usb.c31
9 files changed, 199 insertions, 66 deletions
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 96f11715cd2..355dffcc23b 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -494,7 +494,7 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
return 0;
/* allocate 2^1 pages = 8K (on i386);
* should be more than enough for one device */
- pages_start = (char *)__get_free_pages(GFP_KERNEL, 1);
+ pages_start = (char *)__get_free_pages(GFP_NOIO, 1);
if (!pages_start)
return -ENOMEM;
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 181f78c8410..6e8bcdfd23b 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1388,6 +1388,46 @@ static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg)
}
#ifdef CONFIG_COMPAT
+static int proc_control_compat(struct dev_state *ps,
+ struct usbdevfs_ctrltransfer32 __user *p32)
+{
+ struct usbdevfs_ctrltransfer __user *p;
+ __u32 udata;
+ p = compat_alloc_user_space(sizeof(*p));
+ if (copy_in_user(p, p32, (sizeof(*p32) - sizeof(compat_caddr_t))) ||
+ get_user(udata, &p32->data) ||
+ put_user(compat_ptr(udata), &p->data))
+ return -EFAULT;
+ return proc_control(ps, p);
+}
+
+static int proc_bulk_compat(struct dev_state *ps,
+ struct usbdevfs_bulktransfer32 __user *p32)
+{
+ struct usbdevfs_bulktransfer __user *p;
+ compat_uint_t n;
+ compat_caddr_t addr;
+
+ p = compat_alloc_user_space(sizeof(*p));
+
+ if (get_user(n, &p32->ep) || put_user(n, &p->ep) ||
+ get_user(n, &p32->len) || put_user(n, &p->len) ||
+ get_user(n, &p32->timeout) || put_user(n, &p->timeout) ||
+ get_user(addr, &p32->data) || put_user(compat_ptr(addr), &p->data))
+ return -EFAULT;
+
+ return proc_bulk(ps, p);
+}
+static int proc_disconnectsignal_compat(struct dev_state *ps, void __user *arg)
+{
+ struct usbdevfs_disconnectsignal32 ds;
+
+ if (copy_from_user(&ds, arg, sizeof(ds)))
+ return -EFAULT;
+ ps->discsignr = ds.signr;
+ ps->disccontext = compat_ptr(ds.context);
+ return 0;
+}
static int get_urb32(struct usbdevfs_urb *kurb,
struct usbdevfs_urb32 __user *uurb)
@@ -1482,6 +1522,7 @@ static int proc_reapurbnonblock_compat(struct dev_state *ps, void __user *arg)
return processcompl_compat(as, (void __user * __user *)arg);
}
+
#endif
static int proc_disconnectsignal(struct dev_state *ps, void __user *arg)
@@ -1648,12 +1689,12 @@ static int proc_release_port(struct dev_state *ps, void __user *arg)
* 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)
+static long usbdev_do_ioctl(struct file *file, unsigned int cmd,
+ void __user *p)
{
struct dev_state *ps = file->private_data;
+ struct inode *inode = file->f_path.dentry->d_inode;
struct usb_device *dev = ps->dev;
- void __user *p = (void __user *)arg;
int ret = -ENOTTY;
if (!(file->f_mode & FMODE_WRITE))
@@ -1726,6 +1767,24 @@ static int usbdev_ioctl(struct inode *inode, struct file *file,
break;
#ifdef CONFIG_COMPAT
+ case USBDEVFS_CONTROL32:
+ snoop(&dev->dev, "%s: CONTROL32\n", __func__);
+ ret = proc_control_compat(ps, p);
+ if (ret >= 0)
+ inode->i_mtime = CURRENT_TIME;
+ break;
+
+ case USBDEVFS_BULK32:
+ snoop(&dev->dev, "%s: BULK32\n", __func__);
+ ret = proc_bulk_compat(ps, p);
+ if (ret >= 0)
+ inode->i_mtime = CURRENT_TIME;
+ break;
+
+ case USBDEVFS_DISCSIGNAL32:
+ snoop(&dev->dev, "%s: DISCSIGNAL32\n", __func__);
+ ret = proc_disconnectsignal_compat(ps, p);
+ break;
case USBDEVFS_SUBMITURB32:
snoop(&dev->dev, "%s: SUBMITURB32\n", __func__);
@@ -1745,7 +1804,7 @@ static int usbdev_ioctl(struct inode *inode, struct file *file,
break;
case USBDEVFS_IOCTL32:
- snoop(&dev->dev, "%s: IOCTL\n", __func__);
+ snoop(&dev->dev, "%s: IOCTL32\n", __func__);
ret = proc_ioctl_compat(ps, ptr_to_compat(p));
break;
#endif
@@ -1801,6 +1860,32 @@ static int usbdev_ioctl(struct inode *inode, struct file *file,
return ret;
}
+static long usbdev_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ int ret;
+
+ lock_kernel();
+ ret = usbdev_do_ioctl(file, cmd, (void __user *)arg);
+ unlock_kernel();
+
+ return ret;
+}
+
+#ifdef CONFIG_COMPAT
+static long usbdev_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ int ret;
+
+ lock_kernel();
+ ret = usbdev_do_ioctl(file, cmd, compat_ptr(arg));
+ unlock_kernel();
+
+ return ret;
+}
+#endif
+
/* No kernel lock - fine */
static unsigned int usbdev_poll(struct file *file,
struct poll_table_struct *wait)
@@ -1817,13 +1902,16 @@ static unsigned int usbdev_poll(struct file *file,
}
const struct file_operations usbdev_file_operations = {
- .owner = THIS_MODULE,
- .llseek = usbdev_lseek,
- .read = usbdev_read,
- .poll = usbdev_poll,
- .ioctl = usbdev_ioctl,
- .open = usbdev_open,
- .release = usbdev_release,
+ .owner = THIS_MODULE,
+ .llseek = usbdev_lseek,
+ .read = usbdev_read,
+ .poll = usbdev_poll,
+ .unlocked_ioctl = usbdev_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = usbdev_compat_ioctl,
+#endif
+ .open = usbdev_open,
+ .release = usbdev_release,
};
static void usbdev_remove(struct usb_device *udev)
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index 91f2885b6ee..2dcf906df56 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -363,7 +363,7 @@ static int hcd_pci_restore(struct device *dev)
return resume_common(dev, true);
}
-struct dev_pm_ops usb_hcd_pci_pm_ops = {
+const struct dev_pm_ops usb_hcd_pci_pm_ops = {
.suspend = hcd_pci_suspend,
.suspend_noirq = hcd_pci_suspend_noirq,
.resume_noirq = hcd_pci_resume_noirq,
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 6dac3b802d4..80995ef0868 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1597,7 +1597,9 @@ rescan:
}
/**
- * Check whether a new bandwidth setting exceeds the bus bandwidth.
+ * usb_hcd_alloc_bandwidth - check whether a new bandwidth setting exceeds
+ * the bus bandwidth
+ * @udev: target &usb_device
* @new_config: new configuration to install
* @cur_alt: the current alternate interface setting
* @new_alt: alternate interface setting that is being installed
@@ -1682,6 +1684,24 @@ int usb_hcd_alloc_bandwidth(struct usb_device *udev,
}
}
if (cur_alt && new_alt) {
+ struct usb_interface *iface = usb_ifnum_to_if(udev,
+ cur_alt->desc.bInterfaceNumber);
+
+ if (iface->resetting_device) {
+ /*
+ * The USB core just reset the device, so the xHCI host
+ * and the device will think alt setting 0 is installed.
+ * However, the USB core will pass in the alternate
+ * setting installed before the reset as cur_alt. Dig
+ * out the alternate setting 0 structure, or the first
+ * alternate setting if a broken device doesn't have alt
+ * setting 0.
+ */
+ cur_alt = usb_altnum_to_altsetting(iface, 0);
+ if (!cur_alt)
+ cur_alt = &iface->altsetting[0];
+ }
+
/* Drop all the endpoints in the current alt setting */
for (i = 0; i < cur_alt->desc.bNumEndpoints; i++) {
ret = hcd->driver->drop_endpoint(hcd, udev,
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index d8b43aee581..bbe2b924aae 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -330,7 +330,7 @@ extern void usb_hcd_pci_remove(struct pci_dev *dev);
extern void usb_hcd_pci_shutdown(struct pci_dev *dev);
#ifdef CONFIG_PM_SLEEP
-extern struct dev_pm_ops usb_hcd_pci_pm_ops;
+extern const struct dev_pm_ops usb_hcd_pci_pm_ops;
#endif
#endif /* CONFIG_PCI */
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 06af970e106..35cc8b9ba1f 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1658,12 +1658,12 @@ static inline void announce_device(struct usb_device *udev) { }
#endif
/**
- * usb_configure_device_otg - FIXME (usbcore-internal)
+ * usb_enumerate_device_otg - FIXME (usbcore-internal)
* @udev: newly addressed device (in ADDRESS state)
*
- * Do configuration for On-The-Go devices
+ * Finish enumeration for On-The-Go devices
*/
-static int usb_configure_device_otg(struct usb_device *udev)
+static int usb_enumerate_device_otg(struct usb_device *udev)
{
int err = 0;
@@ -1734,7 +1734,7 @@ fail:
/**
- * usb_configure_device - Detect and probe device intfs/otg (usbcore-internal)
+ * usb_enumerate_device - Read device configs/intfs/otg (usbcore-internal)
* @udev: newly addressed device (in ADDRESS state)
*
* This is only called by usb_new_device() and usb_authorize_device()
@@ -1745,7 +1745,7 @@ fail:
* the string descriptors, as they will be errored out by the device
* until it has been authorized.
*/
-static int usb_configure_device(struct usb_device *udev)
+static int usb_enumerate_device(struct usb_device *udev)
{
int err;
@@ -1769,7 +1769,7 @@ static int usb_configure_device(struct usb_device *udev)
udev->descriptor.iManufacturer);
udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber);
}
- err = usb_configure_device_otg(udev);
+ err = usb_enumerate_device_otg(udev);
fail:
return err;
}
@@ -1779,8 +1779,8 @@ fail:
* usb_new_device - perform initial device setup (usbcore-internal)
* @udev: newly addressed device (in ADDRESS state)
*
- * This is called with devices which have been enumerated, but not yet
- * configured. The device descriptor is available, but not descriptors
+ * This is called with devices which have been detected but not fully
+ * enumerated. The device descriptor is available, but not descriptors
* for any device configuration. The caller must have locked either
* the parent hub (if udev is a normal device) or else the
* usb_bus_list_lock (if udev is a root hub). The parent's pointer to
@@ -1803,8 +1803,8 @@ int usb_new_device(struct usb_device *udev)
if (udev->parent)
usb_autoresume_device(udev->parent);
- usb_detect_quirks(udev); /* Determine quirks */
- err = usb_configure_device(udev); /* detect & probe dev/intfs */
+ usb_detect_quirks(udev);
+ err = usb_enumerate_device(udev); /* Read descriptors */
if (err < 0)
goto fail;
dev_dbg(&udev->dev, "udev %d, busnum %d, minor = %d\n",
@@ -1849,21 +1849,23 @@ fail:
*/
int usb_deauthorize_device(struct usb_device *usb_dev)
{
- unsigned cnt;
usb_lock_device(usb_dev);
if (usb_dev->authorized == 0)
goto out_unauthorized;
+
usb_dev->authorized = 0;
usb_set_configuration(usb_dev, -1);
+
+ kfree(usb_dev->product);
usb_dev->product = kstrdup("n/a (unauthorized)", GFP_KERNEL);
+ kfree(usb_dev->manufacturer);
usb_dev->manufacturer = kstrdup("n/a (unauthorized)", GFP_KERNEL);
+ kfree(usb_dev->serial);
usb_dev->serial = kstrdup("n/a (unauthorized)", GFP_KERNEL);
- kfree(usb_dev->config);
- usb_dev->config = NULL;
- for (cnt = 0; cnt < usb_dev->descriptor.bNumConfigurations; cnt++)
- kfree(usb_dev->rawdescriptors[cnt]);
+
+ usb_destroy_configuration(usb_dev);
usb_dev->descriptor.bNumConfigurations = 0;
- kfree(usb_dev->rawdescriptors);
+
out_unauthorized:
usb_unlock_device(usb_dev);
return 0;
@@ -1873,15 +1875,11 @@ out_unauthorized:
int usb_authorize_device(struct usb_device *usb_dev)
{
int result = 0, c;
+
usb_lock_device(usb_dev);
if (usb_dev->authorized == 1)
goto out_authorized;
- kfree(usb_dev->product);
- usb_dev->product = NULL;
- kfree(usb_dev->manufacturer);
- usb_dev->manufacturer = NULL;
- kfree(usb_dev->serial);
- usb_dev->serial = NULL;
+
result = usb_autoresume_device(usb_dev);
if (result < 0) {
dev_err(&usb_dev->dev,
@@ -1894,10 +1892,18 @@ int usb_authorize_device(struct usb_device *usb_dev)
"authorization: %d\n", result);
goto error_device_descriptor;
}
+
+ kfree(usb_dev->product);
+ usb_dev->product = NULL;
+ kfree(usb_dev->manufacturer);
+ usb_dev->manufacturer = NULL;
+ kfree(usb_dev->serial);
+ usb_dev->serial = NULL;
+
usb_dev->authorized = 1;
- result = usb_configure_device(usb_dev);
+ result = usb_enumerate_device(usb_dev);
if (result < 0)
- goto error_configure;
+ goto error_enumerate;
/* Choose and set the configuration. This registers the interfaces
* with the driver core and lets interface drivers bind to them.
*/
@@ -1912,8 +1918,10 @@ int usb_authorize_device(struct usb_device *usb_dev)
}
}
dev_info(&usb_dev->dev, "authorized to connect\n");
-error_configure:
+
+error_enumerate:
error_device_descriptor:
+ usb_autosuspend_device(usb_dev);
error_autoresume:
out_authorized:
usb_unlock_device(usb_dev); // complements locktree
@@ -3339,6 +3347,9 @@ static void hub_events(void)
USB_PORT_FEAT_C_SUSPEND);
udev = hdev->children[i-1];
if (udev) {
+ /* TRSMRCY = 10 msec */
+ msleep(10);
+
usb_lock_device(udev);
ret = remote_wakeup(hdev->
children[i-1]);
@@ -3684,19 +3695,14 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
usb_enable_interface(udev, intf, true);
ret = 0;
} else {
- /* We've just reset the device, so it will think alt
- * setting 0 is installed. For usb_set_interface() to
- * work properly, we need to set the current alternate
- * interface setting to 0 (or the first alt setting, if
- * the device doesn't have alt setting 0).
+ /* Let the bandwidth allocation function know that this
+ * device has been reset, and it will have to use
+ * alternate setting 0 as the current alternate setting.
*/
- intf->cur_altsetting =
- usb_find_alt_setting(config, i, 0);
- if (!intf->cur_altsetting)
- intf->cur_altsetting =
- &config->intf_cache[i]->altsetting[0];
+ intf->resetting_device = 1;
ret = usb_set_interface(udev, desc->bInterfaceNumber,
desc->bAlternateSetting);
+ intf->resetting_device = 0;
}
if (ret < 0) {
dev_err(&udev->dev, "failed to restore interface %d "
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 1b994846e8e..9bc95fec793 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -906,11 +906,11 @@ char *usb_cache_string(struct usb_device *udev, int index)
if (index <= 0)
return NULL;
- buf = kmalloc(MAX_USB_STRING_SIZE, GFP_KERNEL);
+ buf = kmalloc(MAX_USB_STRING_SIZE, GFP_NOIO);
if (buf) {
len = usb_string(udev, index, buf, MAX_USB_STRING_SIZE);
if (len > 0) {
- smallbuf = kmalloc(++len, GFP_KERNEL);
+ smallbuf = kmalloc(++len, GFP_NOIO);
if (!smallbuf)
return buf;
memcpy(smallbuf, buf, len);
@@ -1731,7 +1731,7 @@ int usb_set_configuration(struct usb_device *dev, int configuration)
if (cp) {
nintf = cp->desc.bNumInterfaces;
new_interfaces = kmalloc(nintf * sizeof(*new_interfaces),
- GFP_KERNEL);
+ GFP_NOIO);
if (!new_interfaces) {
dev_err(&dev->dev, "Out of memory\n");
return -ENOMEM;
@@ -1740,7 +1740,7 @@ int usb_set_configuration(struct usb_device *dev, int configuration)
for (; n < nintf; ++n) {
new_interfaces[n] = kzalloc(
sizeof(struct usb_interface),
- GFP_KERNEL);
+ GFP_NOIO);
if (!new_interfaces[n]) {
dev_err(&dev->dev, "Out of memory\n");
ret = -ENOMEM;
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 15477008b63..5f3908f6e2d 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -82,9 +82,13 @@ static ssize_t show_##name(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct usb_device *udev; \
+ int retval; \
\
udev = to_usb_device(dev); \
- return sprintf(buf, "%s\n", udev->name); \
+ usb_lock_device(udev); \
+ retval = sprintf(buf, "%s\n", udev->name); \
+ usb_unlock_device(udev); \
+ return retval; \
} \
static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
@@ -111,6 +115,12 @@ show_speed(struct device *dev, struct device_attribute *attr, char *buf)
case USB_SPEED_HIGH:
speed = "480";
break;
+ case USB_SPEED_VARIABLE:
+ speed = "480";
+ break;
+ case USB_SPEED_SUPER:
+ speed = "5000";
+ break;
default:
speed = "unknown";
}
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 4e2c6df8d3c..0daff0d968b 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -66,9 +66,9 @@ MODULE_PARM_DESC(autosuspend, "default autosuspend delay");
/**
* usb_find_alt_setting() - Given a configuration, find the alternate setting
* for the given interface.
- * @config - the configuration to search (not necessarily the current config).
- * @iface_num - interface number to search in
- * @alt_num - alternate interface setting number to search for.
+ * @config: the configuration to search (not necessarily the current config).
+ * @iface_num: interface number to search in
+ * @alt_num: alternate interface setting number to search for.
*
* Search the configuration's interface cache for the given alt setting.
*/
@@ -167,18 +167,23 @@ struct usb_host_interface *usb_altnum_to_altsetting(
}
EXPORT_SYMBOL_GPL(usb_altnum_to_altsetting);
+struct find_interface_arg {
+ int minor;
+ struct device_driver *drv;
+};
+
static int __find_interface(struct device *dev, void *data)
{
- int *minor = data;
+ struct find_interface_arg *arg = data;
struct usb_interface *intf;
if (!is_usb_interface(dev))
return 0;
+ if (dev->driver != arg->drv)
+ return 0;
intf = to_usb_interface(dev);
- if (intf->minor != -1 && intf->minor == *minor)
- return 1;
- return 0;
+ return intf->minor == arg->minor;
}
/**
@@ -187,14 +192,18 @@ static int __find_interface(struct device *dev, void *data)
* @minor: the minor number of the desired device
*
* This walks the bus device list and returns a pointer to the interface
- * with the matching minor. Note, this only works for devices that share the
- * USB major number.
+ * with the matching minor and driver. Note, this only works for devices
+ * that share the USB major number.
*/
struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor)
{
+ struct find_interface_arg argb;
struct device *dev;
- dev = bus_find_device(&usb_bus_type, NULL, &minor, __find_interface);
+ argb.minor = minor;
+ argb.drv = &drv->drvwrap.driver;
+
+ dev = bus_find_device(&usb_bus_type, NULL, &argb, __find_interface);
/* Drop reference count from bus_find_device */
put_device(dev);
@@ -320,7 +329,7 @@ static int usb_dev_restore(struct device *dev)
return usb_resume(dev, PMSG_RESTORE);
}
-static struct dev_pm_ops usb_device_pm_ops = {
+static const struct dev_pm_ops usb_device_pm_ops = {
.prepare = usb_dev_prepare,
.complete = usb_dev_complete,
.suspend = usb_dev_suspend,
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-24 02:14:38 +0000