projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 760285e7 | 1 | #include <drm/drmP.h> |
| a250b9fd | 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; | |
| 9f23de52 | 21 | dev->dev = &interface->dev; |
| a250b9fd DA |
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"); |