Commit | Line | Data |
---|---|---|
a250b9fd DA |
1 | #include "drmP.h" |
2 | #include <linux/usb.h> | |
b10c6d4b | 3 | #include <linux/module.h> |
a250b9fd | 4 | |
a250b9fd DA |
5 | int drm_get_usb_dev(struct usb_interface *interface, |
6 | const struct usb_device_id *id, | |
7 | struct drm_driver *driver) | |
8 | { | |
9 | struct drm_device *dev; | |
10 | struct usb_device *usbdev; | |
11 | int ret; | |
12 | ||
13 | DRM_DEBUG("\n"); | |
14 | ||
15 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
16 | if (!dev) | |
17 | return -ENOMEM; | |
18 | ||
19 | usbdev = interface_to_usbdev(interface); | |
20 | dev->usbdev = usbdev; | |
21 | dev->dev = &usbdev->dev; | |
22 | ||
23 | mutex_lock(&drm_global_mutex); | |
24 | ||
25 | ret = drm_fill_in_dev(dev, NULL, driver); | |
26 | if (ret) { | |
27 | printk(KERN_ERR "DRM: Fill_in_dev failed.\n"); | |
28 | goto err_g1; | |
29 | } | |
30 | ||
31 | usb_set_intfdata(interface, dev); | |
32 | ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL); | |
33 | if (ret) | |
34 | goto err_g1; | |
35 | ||
36 | ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY); | |
37 | if (ret) | |
38 | goto err_g2; | |
39 | ||
40 | if (dev->driver->load) { | |
41 | ret = dev->driver->load(dev, 0); | |
42 | if (ret) | |
43 | goto err_g3; | |
44 | } | |
45 | ||
46 | /* setup the grouping for the legacy output */ | |
47 | ret = drm_mode_group_init_legacy_group(dev, | |
48 | &dev->primary->mode_group); | |
49 | if (ret) | |
50 | goto err_g3; | |
51 | ||
52 | list_add_tail(&dev->driver_item, &driver->device_list); | |
53 | ||
54 | mutex_unlock(&drm_global_mutex); | |
55 | ||
56 | DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", | |
57 | driver->name, driver->major, driver->minor, driver->patchlevel, | |
58 | driver->date, dev->primary->index); | |
59 | ||
60 | return 0; | |
61 | ||
62 | err_g3: | |
63 | drm_put_minor(&dev->primary); | |
64 | err_g2: | |
65 | drm_put_minor(&dev->control); | |
66 | err_g1: | |
67 | kfree(dev); | |
68 | mutex_unlock(&drm_global_mutex); | |
69 | return ret; | |
70 | ||
71 | } | |
72 | EXPORT_SYMBOL(drm_get_usb_dev); | |
73 | ||
74 | static int drm_usb_get_irq(struct drm_device *dev) | |
75 | { | |
76 | return 0; | |
77 | } | |
78 | ||
79 | static const char *drm_usb_get_name(struct drm_device *dev) | |
80 | { | |
81 | return "USB"; | |
82 | } | |
83 | ||
84 | static int drm_usb_set_busid(struct drm_device *dev, | |
85 | struct drm_master *master) | |
86 | { | |
87 | return 0; | |
88 | } | |
89 | ||
90 | static struct drm_bus drm_usb_bus = { | |
91 | .bus_type = DRIVER_BUS_USB, | |
92 | .get_irq = drm_usb_get_irq, | |
93 | .get_name = drm_usb_get_name, | |
94 | .set_busid = drm_usb_set_busid, | |
95 | }; | |
96 | ||
97 | int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver) | |
98 | { | |
99 | int res; | |
100 | DRM_DEBUG("\n"); | |
101 | ||
102 | INIT_LIST_HEAD(&driver->device_list); | |
103 | driver->kdriver.usb = udriver; | |
104 | driver->bus = &drm_usb_bus; | |
105 | ||
106 | res = usb_register(udriver); | |
107 | return res; | |
108 | } | |
109 | EXPORT_SYMBOL(drm_usb_init); | |
110 | ||
111 | void drm_usb_exit(struct drm_driver *driver, | |
112 | struct usb_driver *udriver) | |
113 | { | |
114 | usb_deregister(udriver); | |
115 | } | |
116 | EXPORT_SYMBOL(drm_usb_exit); | |
b10c6d4b DA |
117 | |
118 | MODULE_AUTHOR("David Airlie"); | |
119 | MODULE_DESCRIPTION("USB DRM support"); | |
120 | MODULE_LICENSE("GPL and additional rights"); |