From 84412f6291b50690febd81899e46f0f0ef7a13e0 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 14 Jun 2006 12:14:34 -0700 Subject: [PATCH] USB: move the endpoint specific sysfs code to it's own file This makes it easier to modify in the future without touching anything else. Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/sysfs.c | 197 ----------------------------------------------- 1 file changed, 197 deletions(-) (limited to 'drivers/usb/core/sysfs.c') diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 71d881327e8..cc18a05e577 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -15,203 +15,6 @@ #include #include "usb.h" -/* endpoint stuff */ -struct ep_object { - struct usb_endpoint_descriptor *desc; - struct usb_device *udev; - struct kobject kobj; -}; -#define to_ep_object(_kobj) \ - container_of(_kobj, struct ep_object, kobj) - -struct ep_attribute { - struct attribute attr; - ssize_t (*show)(struct usb_device *, - struct usb_endpoint_descriptor *, char *); -}; -#define to_ep_attribute(_attr) \ - container_of(_attr, struct ep_attribute, attr) - -#define EP_ATTR(_name) \ -struct ep_attribute ep_##_name = { \ - .attr = {.name = #_name, .owner = THIS_MODULE, \ - .mode = S_IRUGO}, \ - .show = show_ep_##_name} - -#define usb_ep_attr(field, format_string) \ -static ssize_t show_ep_##field(struct usb_device *udev, \ - struct usb_endpoint_descriptor *desc, \ - char *buf) \ -{ \ - return sprintf(buf, format_string, desc->field); \ -} \ -static EP_ATTR(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") - -static ssize_t show_ep_wMaxPacketSize(struct usb_device *udev, - struct usb_endpoint_descriptor *desc, char *buf) -{ - return sprintf(buf, "%04x\n", - le16_to_cpu(desc->wMaxPacketSize) & 0x07ff); -} -static EP_ATTR(wMaxPacketSize); - -static ssize_t show_ep_type(struct usb_device *udev, - struct usb_endpoint_descriptor *desc, char *buf) -{ - char *type = "unknown"; - - switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { - case USB_ENDPOINT_XFER_CONTROL: - type = "Control"; - break; - case USB_ENDPOINT_XFER_ISOC: - type = "Isoc"; - break; - case USB_ENDPOINT_XFER_BULK: - type = "Bulk"; - break; - case USB_ENDPOINT_XFER_INT: - type = "Interrupt"; - break; - } - return sprintf(buf, "%s\n", type); -} -static EP_ATTR(type); - -static ssize_t show_ep_interval(struct usb_device *udev, - struct usb_endpoint_descriptor *desc, char *buf) -{ - char unit; - unsigned interval = 0; - unsigned in; - - in = (desc->bEndpointAddress & USB_DIR_IN); - - switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { - case USB_ENDPOINT_XFER_CONTROL: - if (udev->speed == USB_SPEED_HIGH) /* uframes per NAK */ - interval = desc->bInterval; - break; - case USB_ENDPOINT_XFER_ISOC: - interval = 1 << (desc->bInterval - 1); - break; - case USB_ENDPOINT_XFER_BULK: - if (udev->speed == USB_SPEED_HIGH && !in) /* uframes per NAK */ - interval = desc->bInterval; - break; - case USB_ENDPOINT_XFER_INT: - if (udev->speed == USB_SPEED_HIGH) - interval = 1 << (desc->bInterval - 1); - else - interval = desc->bInterval; - break; - } - interval *= (udev->speed == USB_SPEED_HIGH) ? 125 : 1000; - if (interval % 1000) - unit = 'u'; - else { - unit = 'm'; - interval /= 1000; - } - - return sprintf(buf, "%d%cs\n", interval, unit); -} -static EP_ATTR(interval); - -static ssize_t show_ep_direction(struct usb_device *udev, - struct usb_endpoint_descriptor *desc, char *buf) -{ - char *direction; - - if ((desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == - USB_ENDPOINT_XFER_CONTROL) - direction = "both"; - else if (desc->bEndpointAddress & USB_DIR_IN) - direction = "in"; - else - direction = "out"; - return sprintf(buf, "%s\n", direction); -} -static EP_ATTR(direction); - -static struct attribute *ep_attrs[] = { - &ep_bLength.attr, - &ep_bEndpointAddress.attr, - &ep_bmAttributes.attr, - &ep_bInterval.attr, - &ep_wMaxPacketSize.attr, - &ep_type.attr, - &ep_interval.attr, - &ep_direction.attr, - NULL, -}; - -static void ep_object_release(struct kobject *kobj) -{ - kfree(to_ep_object(kobj)); -} - -static ssize_t ep_object_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct ep_object *ep_obj = to_ep_object(kobj); - struct ep_attribute *ep_attr = to_ep_attribute(attr); - - return (ep_attr->show)(ep_obj->udev, ep_obj->desc, buf); -} - -static struct sysfs_ops ep_object_sysfs_ops = { - .show = ep_object_show, -}; - -static struct kobj_type ep_object_ktype = { - .release = ep_object_release, - .sysfs_ops = &ep_object_sysfs_ops, - .default_attrs = ep_attrs, -}; - -static void usb_create_ep_files(struct kobject *parent, - struct usb_host_endpoint *endpoint, - struct usb_device *udev) -{ - struct ep_object *ep_obj; - struct kobject *kobj; - - ep_obj = kzalloc(sizeof(struct ep_object), GFP_KERNEL); - if (!ep_obj) - return; - - ep_obj->desc = &endpoint->desc; - ep_obj->udev = udev; - - kobj = &ep_obj->kobj; - kobject_set_name(kobj, "ep_%02x", endpoint->desc.bEndpointAddress); - kobj->parent = parent; - kobj->ktype = &ep_object_ktype; - - /* Don't use kobject_register, because it generates a hotplug event */ - kobject_init(kobj); - if (kobject_add(kobj) == 0) - endpoint->kobj = kobj; - else - kobject_put(kobj); -} - -static void usb_remove_ep_files(struct usb_host_endpoint *endpoint) -{ - - if (endpoint->kobj) { - kobject_del(endpoint->kobj); - kobject_put(endpoint->kobj); - endpoint->kobj = NULL; - } -} - /* Active configuration fields */ #define usb_actconfig_show(field, multiplier, format_string) \ static ssize_t show_##field (struct device *dev, \ -- cgit v1.2.3