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Message-ID: <Pine.LNX.4.64.0812292248410.2265@ask.diku.dk>
Date: Mon, 29 Dec 2008 22:49:22 +0100 (CET)
From: Julia Lawall <julia@...u.dk>
To: mchehab@...radead.org, v4l-dvb-maintainer@...uxtv.org,
video4linux-list@...hat.com, gregkh@...e.de,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 4/13, revised] drivers/media/video: use USB API functions
rather than constants
As compared to the previous version, this one takes advantage of
usb_endpoint_is_isoc_in.
From: Julia Lawall <julia@...u.dk>
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_is_isoc_in(epd)
usb_endpoint_is_isoc_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)
// </smpl>
Signed-off-by: Julia Lawall <julia@...u.dk>
---
drivers/media/video/em28xx/em28xx-video.c | 8 ++++----
drivers/media/video/stk-webcam.c | 7 ++-----
drivers/media/video/usbvideo/ibmcam.c | 4 ++--
drivers/media/video/usbvideo/konicawc.c | 4 ++--
drivers/media/video/usbvideo/quickcam_messenger.c | 7 ++-----
drivers/media/video/usbvideo/ultracam.c | 4 ++--
drivers/media/video/usbvideo/vicam.c | 3 +--
drivers/media/video/usbvision/usbvision-video.c | 5 ++---
8 files changed, 17 insertions(+), 25 deletions(-)
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index 3eef6e3..2627ff1 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -2207,8 +2207,8 @@ static int em28xx_usb_probe(struct usb_interface *interface,
endpoint = &interface->cur_altsetting->endpoint[0].desc;
/* check if the device has the iso in endpoint at the correct place */
- if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
- USB_ENDPOINT_XFER_ISOC &&
+ if (usb_endpoint_xfer_isoc(endpoint)
+ &&
(interface->altsetting[1].endpoint[0].desc.wMaxPacketSize == 940))
{
/* It's a newer em2874/em2875 device */
@@ -2217,11 +2217,11 @@ static int em28xx_usb_probe(struct usb_interface *interface,
int check_interface = 1;
isoc_pipe = 1;
endpoint = &interface->cur_altsetting->endpoint[1].desc;
- if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
+ if (usb_endpoint_type(endpoint) !=
USB_ENDPOINT_XFER_ISOC)
check_interface = 0;
- if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
+ if (usb_endpoint_dir_out(endpoint))
check_interface = 0;
if (!check_interface) {
diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c
index e9eb6d7..452c42c 100644
--- a/drivers/media/video/stk-webcam.c
+++ b/drivers/media/video/stk-webcam.c
@@ -1376,12 +1376,9 @@ static int stk_camera_probe(struct usb_interface *interface,
endpoint = &iface_desc->endpoint[i].desc;
if (!dev->isoc_ep
- && ((endpoint->bEndpointAddress
- & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
- && ((endpoint->bmAttributes
- & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_ISOC)) {
+ && usb_endpoint_is_isoc_in(endpoint)) {
/* we found an isoc in endpoint */
- dev->isoc_ep = (endpoint->bEndpointAddress & 0xF);
+ dev->isoc_ep = usb_endpoint_num(endpoint);
break;
}
}
diff --git a/drivers/media/video/usbvideo/ibmcam.c b/drivers/media/video/usbvideo/ibmcam.c
index c710bcd..f8d85dd 100644
--- a/drivers/media/video/usbvideo/ibmcam.c
+++ b/drivers/media/video/usbvideo/ibmcam.c
@@ -3779,11 +3779,11 @@ static int ibmcam_probe(struct usb_interface *intf, const struct usb_device_id *
err("Alternate settings have different endpoint addresses!");
return -ENODEV;
}
- if ((endpoint->bmAttributes & 0x03) != 0x01) {
+ if (usb_endpoint_type(endpoint) != USB_ENDPOINT_XFER_ISOC) {
err("Interface %d. has non-ISO endpoint!", ifnum);
return -ENODEV;
}
- if ((endpoint->bEndpointAddress & 0x80) == 0) {
+ if (usb_endpoint_dir_out(endpoint)) {
err("Interface %d. has ISO OUT endpoint!", ifnum);
return -ENODEV;
}
diff --git a/drivers/media/video/usbvideo/konicawc.c b/drivers/media/video/usbvideo/konicawc.c
index da27a52..90f0ce6 100644
--- a/drivers/media/video/usbvideo/konicawc.c
+++ b/drivers/media/video/usbvideo/konicawc.c
@@ -823,12 +823,12 @@ static int konicawc_probe(struct usb_interface *intf, const struct usb_device_id
err("Alternate settings have different endpoint addresses!");
return -ENODEV;
}
- if ((endpoint->bmAttributes & 0x03) != 0x01) {
+ if (usb_endpoint_type(endpoint) != USB_ENDPOINT_XFER_ISOC) {
err("Interface %d. has non-ISO endpoint!",
interface->desc.bInterfaceNumber);
return -ENODEV;
}
- if ((endpoint->bEndpointAddress & 0x80) == 0) {
+ if (usb_endpoint_dir_out(endpoint)) {
err("Interface %d. has ISO OUT endpoint!",
interface->desc.bInterfaceNumber);
return -ENODEV;
diff --git a/drivers/media/video/usbvideo/quickcam_messenger.c b/drivers/media/video/usbvideo/quickcam_messenger.c
index 4459b8a..354bd2e 100644
--- a/drivers/media/video/usbvideo/quickcam_messenger.c
+++ b/drivers/media/video/usbvideo/quickcam_messenger.c
@@ -955,8 +955,7 @@ static int qcm_probe(struct usb_interface *intf,
for (j=0; j < interface->desc.bNumEndpoints; j++) {
endpoint = &interface->endpoint[j].desc;
- if ((endpoint->bEndpointAddress &
- USB_ENDPOINT_DIR_MASK) != USB_DIR_IN)
+ if (usb_endpoint_dir_out(endpoint))
continue; /* not input then not good */
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
@@ -965,9 +964,7 @@ static int qcm_probe(struct usb_interface *intf,
continue; /* 0 pkt size is not what we want */
}
- if ((endpoint->bmAttributes &
- USB_ENDPOINT_XFERTYPE_MASK) ==
- USB_ENDPOINT_XFER_ISOC) {
+ if (usb_endpoint_xfer_isoc(endpoint)) {
video_ep = endpoint->bEndpointAddress;
/* break out of the search */
goto good_videoep;
diff --git a/drivers/media/video/usbvideo/ultracam.c b/drivers/media/video/usbvideo/ultracam.c
index 9714baa..839a082 100644
--- a/drivers/media/video/usbvideo/ultracam.c
+++ b/drivers/media/video/usbvideo/ultracam.c
@@ -556,12 +556,12 @@ static int ultracam_probe(struct usb_interface *intf, const struct usb_device_id
err("Alternate settings have different endpoint addresses!");
return -ENODEV;
}
- if ((endpoint->bmAttributes & 0x03) != 0x01) {
+ if (usb_endpoint_type(endpoint) != USB_ENDPOINT_XFER_ISOC) {
err("Interface %d. has non-ISO endpoint!",
interface->desc.bInterfaceNumber);
return -ENODEV;
}
- if ((endpoint->bEndpointAddress & 0x80) == 0) {
+ if (usb_endpoint_dir_out(endpoint)) {
err("Interface %d. has ISO OUT endpoint!",
interface->desc.bInterfaceNumber);
return -ENODEV;
diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c
index 8e2d58b..4602597 100644
--- a/drivers/media/video/usbvideo/vicam.c
+++ b/drivers/media/video/usbvideo/vicam.c
@@ -844,8 +844,7 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id)
interface->desc.bInterfaceNumber, (unsigned) (interface->desc.bNumEndpoints));
endpoint = &interface->endpoint[0].desc;
- if ((endpoint->bEndpointAddress & 0x80) &&
- ((endpoint->bmAttributes & 3) == 0x02)) {
+ if (usb_endpoint_is_bulk_in(endpoint)) {
/* we found a bulk in endpoint */
bulkEndpoint = endpoint->bEndpointAddress;
} else {
diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index 48c8c43..85661b1 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -1679,7 +1679,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf,
interface = &dev->actconfig->interface[ifnum]->altsetting[0];
}
endpoint = &interface->endpoint[1].desc;
- if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
+ if (usb_endpoint_type(endpoint) !=
USB_ENDPOINT_XFER_ISOC) {
err("%s: interface %d. has non-ISO endpoint!",
__func__, ifnum);
@@ -1687,8 +1687,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf,
__func__, endpoint->bmAttributes);
return -ENODEV;
}
- if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
- USB_DIR_OUT) {
+ if (usb_endpoint_dir_out(endpoint)) {
err("%s: interface %d. has ISO OUT endpoint!",
__func__, ifnum);
return -ENODEV;
--
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