1 files changed, 57 insertions, 115 deletions

diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c
index 247b5a4913a..39a24021fe4 100644
--- a/drivers/usb/core/endpoint.c
+++ b/drivers/usb/core/endpoint.c
@@ -10,11 +10,11 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
 #include <linux/usb.h>
 #include "usb.h"
 
-/* endpoint stuff */
-
 struct ep_device {
 	struct usb_endpoint_descriptor *desc;
 	struct usb_device *udev;
@@ -32,36 +32,36 @@ struct ep_attribute {
 	container_of(_attr, struct ep_attribute, attr)
 
 #define usb_ep_attr(field, format_string)			\
-static ssize_t show_ep_##field(struct device *dev,		\
+static ssize_t field##_show(struct device *dev,			\
 			       struct device_attribute *attr,	\
 			       char *buf)			\
 {								\
 	struct ep_device *ep = to_ep_device(dev);		\
 	return sprintf(buf, format_string, ep->desc->field);	\
 }								\
-static DEVICE_ATTR(field, S_IRUGO, show_ep_##field, NULL);
+static DEVICE_ATTR_RO(field)
 
-usb_ep_attr(bLength, "%02x\n")
-usb_ep_attr(bEndpointAddress, "%02x\n")
-usb_ep_attr(bmAttributes, "%02x\n")
-usb_ep_attr(bInterval, "%02x\n")
+usb_ep_attr(bLength, "%02x\n");
+usb_ep_attr(bEndpointAddress, "%02x\n");
+usb_ep_attr(bmAttributes, "%02x\n");
+usb_ep_attr(bInterval, "%02x\n");
 
-static ssize_t show_ep_wMaxPacketSize(struct device *dev,
-				      struct device_attribute *attr, char *buf)
+static ssize_t wMaxPacketSize_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
 {
 	struct ep_device *ep = to_ep_device(dev);
 	return sprintf(buf, "%04x\n",
-			le16_to_cpu(ep->desc->wMaxPacketSize) & 0x07ff);
+		        usb_endpoint_maxp(ep->desc) & 0x07ff);
 }
-static DEVICE_ATTR(wMaxPacketSize, S_IRUGO, show_ep_wMaxPacketSize, NULL);
+static DEVICE_ATTR_RO(wMaxPacketSize);
 
-static ssize_t show_ep_type(struct device *dev, struct device_attribute *attr,
-			    char *buf)
+static ssize_t type_show(struct device *dev, struct device_attribute *attr,
+			 char *buf)
 {
 	struct ep_device *ep = to_ep_device(dev);
 	char *type = "unknown";
 
-	switch (ep->desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+	switch (usb_endpoint_type(ep->desc)) {
 	case USB_ENDPOINT_XFER_CONTROL:
 		type = "Control";
 		break;
@@ -77,10 +77,10 @@ static ssize_t show_ep_type(struct device *dev, struct device_attribute *attr,
 	}
 	return sprintf(buf, "%s\n", type);
 }
-static DEVICE_ATTR(type, S_IRUGO, show_ep_type, NULL);
+static DEVICE_ATTR_RO(type);
 
-static ssize_t show_ep_interval(struct device *dev,
-				struct device_attribute *attr, char *buf)
+static ssize_t interval_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
 {
 	struct ep_device *ep = to_ep_device(dev);
 	char unit;
@@ -89,18 +89,23 @@ static ssize_t show_ep_interval(struct device *dev,
 
 	in = (ep->desc->bEndpointAddress & USB_DIR_IN);
 
-	switch (ep->desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+	switch (usb_endpoint_type(ep->desc)) {
 	case USB_ENDPOINT_XFER_CONTROL:
-		if (ep->udev->speed == USB_SPEED_HIGH) 	/* uframes per NAK */
+		if (ep->udev->speed == USB_SPEED_HIGH)
+			/* uframes per NAK */
 			interval = ep->desc->bInterval;
 		break;
+
 	case USB_ENDPOINT_XFER_ISOC:
 		interval = 1 << (ep->desc->bInterval - 1);
 		break;
+
 	case USB_ENDPOINT_XFER_BULK:
-		if (ep->udev->speed == USB_SPEED_HIGH && !in) /* uframes per NAK */
+		if (ep->udev->speed == USB_SPEED_HIGH && !in)
+			/* uframes per NAK */
 			interval = ep->desc->bInterval;
 		break;
+
 	case USB_ENDPOINT_XFER_INT:
 		if (ep->udev->speed == USB_SPEED_HIGH)
 			interval = 1 << (ep->desc->bInterval - 1);
@@ -118,24 +123,23 @@ static ssize_t show_ep_interval(struct device *dev,
 
 	return sprintf(buf, "%d%cs\n", interval, unit);
 }
-static DEVICE_ATTR(interval, S_IRUGO, show_ep_interval, NULL);
+static DEVICE_ATTR_RO(interval);
 
-static ssize_t show_ep_direction(struct device *dev,
-				 struct device_attribute *attr, char *buf)
+static ssize_t direction_show(struct device *dev, struct device_attribute *attr,
+			      char *buf)
 {
 	struct ep_device *ep = to_ep_device(dev);
 	char *direction;
 
-	if ((ep->desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-			USB_ENDPOINT_XFER_CONTROL)
+	if (usb_endpoint_xfer_control(ep->desc))
 		direction = "both";
-	else if (ep->desc->bEndpointAddress & USB_DIR_IN)
+	else if (usb_endpoint_dir_in(ep->desc))
 		direction = "in";
 	else
 		direction = "out";
 	return sprintf(buf, "%s\n", direction);
 }
-static DEVICE_ATTR(direction, S_IRUGO, show_ep_direction, NULL);
+static DEVICE_ATTR_RO(direction);
 
 static struct attribute *ep_dev_attrs[] = {
 	&dev_attr_bLength.attr,
@@ -151,125 +155,63 @@ static struct attribute *ep_dev_attrs[] = {
 static struct attribute_group ep_dev_attr_grp = {
 	.attrs = ep_dev_attrs,
 };
-
-static struct endpoint_class {
-	struct kref kref;
-	struct class *class;
-} *ep_class;
-
-static int init_endpoint_class(void)
-{
-	int result = 0;
-
-	if (ep_class != NULL) {
-		kref_get(&ep_class->kref);
-		goto exit;
-	}
-
-	ep_class = kmalloc(sizeof(*ep_class), GFP_KERNEL);
-	if (!ep_class) {
-		result = -ENOMEM;
-		goto exit;
-	}
-
-	kref_init(&ep_class->kref);
-	ep_class->class = class_create(THIS_MODULE, "usb_endpoint");
-	if (IS_ERR(ep_class->class)) {
-		result = IS_ERR(ep_class->class);
-		kfree(ep_class);
-		ep_class = NULL;
-		goto exit;
-	}
-
-exit:
-	return result;
-}
-
-static void release_endpoint_class(struct kref *kref)
-{
-	/* Ok, we cheat as we know we only have one ep_class */
-	class_destroy(ep_class->class);
-	kfree(ep_class);
-	ep_class = NULL;
-}
-
-static void destroy_endpoint_class(void)
-{
-	if (ep_class)
-		kref_put(&ep_class->kref, release_endpoint_class);
-}
+static const struct attribute_group *ep_dev_groups[] = {
+	&ep_dev_attr_grp,
+	NULL
+};
 
 static void ep_device_release(struct device *dev)
 {
 	struct ep_device *ep_dev = to_ep_device(dev);
 
-	dev_dbg(dev, "%s called for %s\n", __FUNCTION__, dev->bus_id);
 	kfree(ep_dev);
 }
 
-void usb_create_ep_files(struct device *parent,
-			 struct usb_host_endpoint *endpoint,
-			 struct usb_device *udev)
+struct device_type usb_ep_device_type = {
+	.name =		"usb_endpoint",
+	.release = ep_device_release,
+};
+
+int usb_create_ep_devs(struct device *parent,
+			struct usb_host_endpoint *endpoint,
+			struct usb_device *udev)
 {
-	char name[8];
 	struct ep_device *ep_dev;
-	int minor;
 	int retval;
 
-	retval = init_endpoint_class();
-	if (retval)
-		goto exit;
-
 	ep_dev = kzalloc(sizeof(*ep_dev), GFP_KERNEL);
 	if (!ep_dev) {
 		retval = -ENOMEM;
 		goto exit;
 	}
 
-	/* fun calculation to determine the minor of this endpoint */
-	minor = (((udev->bus->busnum - 1) * 128) * 16) + (udev->devnum - 1);
-
 	ep_dev->desc = &endpoint->desc;
 	ep_dev->udev = udev;
-	ep_dev->dev.devt = MKDEV(442, minor);	// FIXME fake number...
-	ep_dev->dev.class = ep_class->class;
+	ep_dev->dev.groups = ep_dev_groups;
+	ep_dev->dev.type = &usb_ep_device_type;
 	ep_dev->dev.parent = parent;
-	ep_dev->dev.release = ep_device_release;
-	snprintf(ep_dev->dev.bus_id, BUS_ID_SIZE, "usbdev%d.%d_ep%02x",
-		 udev->bus->busnum, udev->devnum,
-		 endpoint->desc.bEndpointAddress);
+	dev_set_name(&ep_dev->dev, "ep_%02x", endpoint->desc.bEndpointAddress);
 
 	retval = device_register(&ep_dev->dev);
 	if (retval)
-		goto error;
-	sysfs_create_group(&ep_dev->dev.kobj, &ep_dev_attr_grp);
+		goto error_register;
 
+	device_enable_async_suspend(&ep_dev->dev);
 	endpoint->ep_dev = ep_dev;
+	return retval;
 
-	/* create the symlink to the old-style "ep_XX" directory */
-	sprintf(name, "ep_%02x", endpoint->desc.bEndpointAddress);
-	sysfs_create_link(&parent->kobj, &endpoint->ep_dev->dev.kobj, name);
-
+error_register:
+	put_device(&ep_dev->dev);
 exit:
-	return;
-error:
-	kfree(ep_dev);
-	return;
+	return retval;
 }
 
-void usb_remove_ep_files(struct usb_host_endpoint *endpoint)
+void usb_remove_ep_devs(struct usb_host_endpoint *endpoint)
 {
+	struct ep_device *ep_dev = endpoint->ep_dev;
 
-	if (endpoint->ep_dev) {
-		char name[8];
-
-		sprintf(name, "ep_%02x", endpoint->desc.bEndpointAddress);
-		sysfs_remove_link(&endpoint->ep_dev->dev.parent->kobj, name);
-		sysfs_remove_group(&endpoint->ep_dev->dev.kobj, &ep_dev_attr_grp);
-		device_unregister(&endpoint->ep_dev->dev);
+	if (ep_dev) {
+		device_unregister(&ep_dev->dev);
 		endpoint->ep_dev = NULL;
 	}
-	destroy_endpoint_class();
 }
-
-