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>

5 files changed, 16 insertions, 18 deletions

diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 6ec38175a817..73c108d117b4 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 e1710f260b4f..40dee2ac0133 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";
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 319041205b57..5e942d94aebe 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -660,9 +660,9 @@ static u16 get_empty_pipenum(struct r8a66597 *r8a66597,
         u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min;
 
         memset(array, 0, sizeof(array));
-        switch (ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+        switch (usb_endpoint_type(ep)) {
         case USB_ENDPOINT_XFER_BULK:
-                if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+                if (usb_endpoint_dir_in(ep))
                         array[i++] = 4;
                 else {
                         array[i++] = 3;
@@ -670,7 +670,7 @@ static u16 get_empty_pipenum(struct r8a66597 *r8a66597,
                 }
                 break;
         case USB_ENDPOINT_XFER_INT:
-                if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) {
+                if (usb_endpoint_dir_in(ep)) {
                         array[i++] = 6;
                         array[i++] = 7;
                         array[i++] = 8;
@@ -678,7 +678,7 @@ static u16 get_empty_pipenum(struct r8a66597 *r8a66597,
                         array[i++] = 9;
                 break;
         case USB_ENDPOINT_XFER_ISOC:
-                if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+                if (usb_endpoint_dir_in(ep))
                         array[i++] = 2;
                 else
                         array[i++] = 1;
@@ -928,10 +928,9 @@ static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
 
         info.pipenum = get_empty_pipenum(r8a66597, ep);
         info.address = get_urb_to_r8a66597_addr(r8a66597, urb);
-        info.epnum = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+        info.epnum = usb_endpoint_num(ep);
         info.maxpacket = le16_to_cpu(ep->wMaxPacketSize);
-        info.type = get_r8a66597_type(ep->bmAttributes
-                                      & USB_ENDPOINT_XFERTYPE_MASK);
+        info.type = get_r8a66597_type(usb_endpoint_type(ep));
         info.bufnum = get_bufnum(info.pipenum);
         info.buf_bsize = get_buf_bsize(info.pipenum);
         if (info.type == R8A66597_BULK) {
@@ -941,7 +940,7 @@ static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
                 info.interval = get_interval(urb, ep->bInterval);
                 info.timer_interval = get_timer_interval(urb, ep->bInterval);
         }
-        if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+        if (usb_endpoint_dir_in(ep))
                 info.dir_in = 1;
         else
                 info.dir_in = 0;
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 9878c0fb3859..00daa8f7759a 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1507,7 +1507,7 @@ static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
         } else {
                 dev_warn(&serial->interface->dev,
                          "unsupported endpoint type %x\n",
-                         ep_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
+                         usb_endpoint_type(ep_desc));
                 usb_free_urb(urb);
                 return NULL;
         }
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 4becf495ca2d..b01dade63cb3 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -846,12 +846,12 @@ static int get_pipes(struct us_data *us)
         us->send_ctrl_pipe = usb_sndctrlpipe(us->pusb_dev, 0);
         us->recv_ctrl_pipe = usb_rcvctrlpipe(us->pusb_dev, 0);
         us->send_bulk_pipe = usb_sndbulkpipe(us->pusb_dev,
-                ep_out->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+                usb_endpoint_num(ep_out));
         us->recv_bulk_pipe = usb_rcvbulkpipe(us->pusb_dev, 
-                ep_in->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+                usb_endpoint_num(ep_in));
         if (ep_int) {
                 us->recv_intr_pipe = usb_rcvintpipe(us->pusb_dev,
-                        ep_int->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+                        usb_endpoint_num(ep_int));
                 us->ep_bInterval = ep_int->bInterval;
         }
         return 0;