3 #include <linux/module.h>
5 int drm_get_usb_dev(struct usb_interface *interface,
6 const struct usb_device_id *id,
7 struct drm_driver *driver)
9 struct drm_device *dev;
10 struct usb_device *usbdev;
15 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
19 usbdev = interface_to_usbdev(interface);
21 dev->dev = &interface->dev;
23 mutex_lock(&drm_global_mutex);
25 ret = drm_fill_in_dev(dev, NULL, driver);
27 printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
31 usb_set_intfdata(interface, dev);
32 ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
36 if (drm_core_check_feature(dev, DRIVER_RENDER) && drm_rnodes) {
37 ret = drm_get_minor(dev, &dev->render, DRM_MINOR_RENDER);
42 ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY);
46 if (dev->driver->load) {
47 ret = dev->driver->load(dev, 0);
52 /* setup the grouping for the legacy output */
53 ret = drm_mode_group_init_legacy_group(dev,
54 &dev->primary->mode_group);
58 list_add_tail(&dev->driver_item, &driver->device_list);
60 mutex_unlock(&drm_global_mutex);
62 DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
63 driver->name, driver->major, driver->minor, driver->patchlevel,
64 driver->date, dev->primary->index);
69 drm_put_minor(&dev->primary);
72 drm_put_minor(&dev->render);
74 drm_put_minor(&dev->control);
77 mutex_unlock(&drm_global_mutex);
81 EXPORT_SYMBOL(drm_get_usb_dev);
83 static int drm_usb_get_irq(struct drm_device *dev)
88 static const char *drm_usb_get_name(struct drm_device *dev)
93 static int drm_usb_set_busid(struct drm_device *dev,
94 struct drm_master *master)
99 static struct drm_bus drm_usb_bus = {
100 .bus_type = DRIVER_BUS_USB,
101 .get_irq = drm_usb_get_irq,
102 .get_name = drm_usb_get_name,
103 .set_busid = drm_usb_set_busid,
106 int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver)
111 INIT_LIST_HEAD(&driver->device_list);
112 driver->kdriver.usb = udriver;
113 driver->bus = &drm_usb_bus;
115 res = usb_register(udriver);
118 EXPORT_SYMBOL(drm_usb_init);
120 void drm_usb_exit(struct drm_driver *driver,
121 struct usb_driver *udriver)
123 usb_deregister(udriver);
125 EXPORT_SYMBOL(drm_usb_exit);
127 MODULE_AUTHOR("David Airlie");
128 MODULE_DESCRIPTION("USB DRM support");
129 MODULE_LICENSE("GPL and additional rights");