1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
#include <drm/drmP.h>
#include <drm/drm_usb.h>
#include <linux/usb.h>
#include <linux/module.h>
int drm_get_usb_dev(struct usb_interface *interface,
const struct usb_device_id *id,
struct drm_driver *driver)
{
struct drm_device *dev;
int ret;
DRM_DEBUG("\n");
dev = drm_dev_alloc(driver, &interface->dev);
if (!dev)
return -ENOMEM;
dev->usbdev = interface_to_usbdev(interface);
usb_set_intfdata(interface, dev);
ret = drm_dev_register(dev, 0);
if (ret)
goto err_free;
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
driver->name, driver->major, driver->minor, driver->patchlevel,
driver->date, dev->primary->index);
return 0;
err_free:
drm_dev_unref(dev);
return ret;
}
EXPORT_SYMBOL(drm_get_usb_dev);
static int drm_usb_get_irq(struct drm_device *dev)
{
return 0;
}
static const char *drm_usb_get_name(struct drm_device *dev)
{
return "USB";
}
static int drm_usb_set_busid(struct drm_device *dev,
struct drm_master *master)
{
return 0;
}
static struct drm_bus drm_usb_bus = {
.get_irq = drm_usb_get_irq,
.get_name = drm_usb_get_name,
.set_busid = drm_usb_set_busid,
};
int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver)
{
int res;
DRM_DEBUG("\n");
driver->kdriver.usb = udriver;
driver->bus = &drm_usb_bus;
res = usb_register(udriver);
return res;
}
EXPORT_SYMBOL(drm_usb_init);
void drm_usb_exit(struct drm_driver *driver,
struct usb_driver *udriver)
{
usb_deregister(udriver);
}
EXPORT_SYMBOL(drm_usb_exit);
MODULE_AUTHOR("David Airlie");
MODULE_DESCRIPTION("USB DRM support");
MODULE_LICENSE("GPL and additional rights");
|
