USB: drivers: use USB API functions rather than constants

This set of patches introduces calls to the following set of functions:

usb_endpoint_dir_in(epd)
usb_endpoint_dir_out(epd)
usb_endpoint_is_bulk_in(epd)
usb_endpoint_is_bulk_out(epd)
usb_endpoint_is_int_in(epd)
usb_endpoint_is_int_out(epd)
usb_endpoint_num(epd)
usb_endpoint_type(epd)
usb_endpoint_xfer_bulk(epd)
usb_endpoint_xfer_control(epd)
usb_endpoint_xfer_int(epd)
usb_endpoint_xfer_isoc(epd)

In some cases, introducing one of these functions is not possible, and it
just replaces an explicit integer value by one of the following constants:

USB_ENDPOINT_XFER_BULK
USB_ENDPOINT_XFER_CONTROL
USB_ENDPOINT_XFER_INT
USB_ENDPOINT_XFER_ISOC

An extract of the semantic patch that makes these changes is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r1@ struct usb_endpoint_descriptor *epd; @@

- ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) ==
- \(USB_ENDPOINT_XFER_CONTROL\|0\))
+ usb_endpoint_xfer_control(epd)

@r5@ struct usb_endpoint_descriptor *epd; @@

- ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) ==
-  \(USB_DIR_IN\|0x80\))
+ usb_endpoint_dir_in(epd)

@inc@
@@

#include <linux/usb.h>

@depends on !inc && (r1||r5)@
@@

+ #include <linux/usb.h>
  #include <linux/usb/...>
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 5 insertions, 6 deletions

diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 6ec3817..73c108d 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -187,7 +187,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
 	}
 
 	/* this isn't checking for illegal values */
-	switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+	switch (usb_endpoint_type(desc)) {
 	case USB_ENDPOINT_XFER_CONTROL:
 		type = "Ctrl";
 		if (speed == USB_SPEED_HIGH) 	/* uframes per NAK */
diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c
index e1710f2..40dee2a 100644
--- a/drivers/usb/core/endpoint.c
+++ b/drivers/usb/core/endpoint.c
@@ -66,7 +66,7 @@ static ssize_t show_ep_type(struct device *dev, struct device_attribute *attr,
 	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;
@@ -94,7 +94,7 @@ 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 */
 			interval = ep->desc->bInterval;
@@ -131,10 +131,9 @@ static ssize_t show_ep_direction(struct device *dev,
 	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";