Commit | Line | Data |
---|---|---|
a250b9fd DA |
1 | #include "drmP.h" |
2 | #include <linux/usb.h> | |
2d1a8a48 | 3 | #include <linux/export.h> |
a250b9fd DA |
4 | |
5 | #ifdef CONFIG_USB | |
6 | int drm_get_usb_dev(struct usb_interface *interface, | |
7 | const struct usb_device_id *id, | |
8 | struct drm_driver *driver) | |
9 | { | |
10 | struct drm_device *dev; | |
11 | struct usb_device *usbdev; | |
12 | int ret; | |
13 | ||
14 | DRM_DEBUG("\n"); | |
15 | ||
16 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
17 | if (!dev) | |
18 | return -ENOMEM; | |
19 | ||
20 | usbdev = interface_to_usbdev(interface); | |
21 | dev->usbdev = usbdev; | |
22 | dev->dev = &usbdev->dev; | |
23 | ||
24 | mutex_lock(&drm_global_mutex); | |
25 | ||
26 | ret = drm_fill_in_dev(dev, NULL, driver); | |
27 | if (ret) { | |
28 | printk(KERN_ERR "DRM: Fill_in_dev failed.\n"); | |
29 | goto err_g1; | |
30 | } | |
31 | ||
32 | usb_set_intfdata(interface, dev); | |
33 | ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL); | |
34 | if (ret) | |
35 | goto err_g1; | |
36 | ||
37 | ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY); | |
38 | if (ret) | |
39 | goto err_g2; | |
40 | ||
41 | if (dev->driver->load) { | |
42 | ret = dev->driver->load(dev, 0); | |
43 | if (ret) | |
44 | goto err_g3; | |
45 | } | |
46 | ||
47 | /* setup the grouping for the legacy output */ | |
48 | ret = drm_mode_group_init_legacy_group(dev, | |
49 | &dev->primary->mode_group); | |
50 | if (ret) | |
51 | goto err_g3; | |
52 | ||
53 | list_add_tail(&dev->driver_item, &driver->device_list); | |
54 | ||
55 | mutex_unlock(&drm_global_mutex); | |
56 | ||
57 | DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", | |
58 | driver->name, driver->major, driver->minor, driver->patchlevel, | |
59 | driver->date, dev->primary->index); | |
60 | ||
61 | return 0; | |
62 | ||
63 | err_g3: | |
64 | drm_put_minor(&dev->primary); | |
65 | err_g2: | |
66 | drm_put_minor(&dev->control); | |
67 | err_g1: | |
68 | kfree(dev); | |
69 | mutex_unlock(&drm_global_mutex); | |
70 | return ret; | |
71 | ||
72 | } | |
73 | EXPORT_SYMBOL(drm_get_usb_dev); | |
74 | ||
75 | static int drm_usb_get_irq(struct drm_device *dev) | |
76 | { | |
77 | return 0; | |
78 | } | |
79 | ||
80 | static const char *drm_usb_get_name(struct drm_device *dev) | |
81 | { | |
82 | return "USB"; | |
83 | } | |
84 | ||
85 | static int drm_usb_set_busid(struct drm_device *dev, | |
86 | struct drm_master *master) | |
87 | { | |
88 | return 0; | |
89 | } | |
90 | ||
91 | static struct drm_bus drm_usb_bus = { | |
92 | .bus_type = DRIVER_BUS_USB, | |
93 | .get_irq = drm_usb_get_irq, | |
94 | .get_name = drm_usb_get_name, | |
95 | .set_busid = drm_usb_set_busid, | |
96 | }; | |
97 | ||
98 | int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver) | |
99 | { | |
100 | int res; | |
101 | DRM_DEBUG("\n"); | |
102 | ||
103 | INIT_LIST_HEAD(&driver->device_list); | |
104 | driver->kdriver.usb = udriver; | |
105 | driver->bus = &drm_usb_bus; | |
106 | ||
107 | res = usb_register(udriver); | |
108 | return res; | |
109 | } | |
110 | EXPORT_SYMBOL(drm_usb_init); | |
111 | ||
112 | void drm_usb_exit(struct drm_driver *driver, | |
113 | struct usb_driver *udriver) | |
114 | { | |
115 | usb_deregister(udriver); | |
116 | } | |
117 | EXPORT_SYMBOL(drm_usb_exit); | |
118 | #endif |