drivers/gpu/drm/udl/udl_drv.c

   1 /*
   2  * Copyright (C) 2012 Red Hat
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License v2. See the file COPYING in the main directory of this archive for
   6  * more details.
   7  */
   8
   9 #include <linux/module.h>
  10 #include "drm_usb.h"
  11 #include "drm_crtc_helper.h"
  12 #include "udl_drv.h"
  13
  14 static struct drm_driver driver;
  15
  16 static struct usb_device_id id_table[] = {
  17         {.idVendor = 0x17e9, .match_flags = USB_DEVICE_ID_MATCH_VENDOR,},
  18         {},
  19 };
  20 MODULE_DEVICE_TABLE(usb, id_table);
  21
  22 MODULE_LICENSE("GPL");
  23
  24 static int udl_usb_probe(struct usb_interface *interface,
  25                          const struct usb_device_id *id)
  26 {
  27         return drm_get_usb_dev(interface, id, &driver);
  28 }
  29
  30 static void udl_usb_disconnect(struct usb_interface *interface)
  31 {
  32         struct drm_device *dev = usb_get_intfdata(interface);
  33
  34         drm_kms_helper_poll_disable(dev);
  35         drm_connector_unplug_all(dev);
  36         udl_fbdev_unplug(dev);
  37         udl_drop_usb(dev);
  38         drm_unplug_dev(dev);
  39 }
  40
  41 static const struct vm_operations_struct udl_gem_vm_ops = {
  42         .fault = udl_gem_fault,
  43         .open = drm_gem_vm_open,
  44         .close = drm_gem_vm_close,
  45 };
  46
  47 static const struct file_operations udl_driver_fops = {
  48         .owner = THIS_MODULE,
  49         .open = drm_open,
  50         .mmap = udl_drm_gem_mmap,
  51         .poll = drm_poll,
  52         .read = drm_read,
  53         .unlocked_ioctl = drm_ioctl,
  54         .release = drm_release,
  55         .fasync = drm_fasync,
  56         .llseek = noop_llseek,
  57 };
  58
  59 static struct drm_driver driver = {
  60         .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
  61         .load = udl_driver_load,
  62         .unload = udl_driver_unload,
  63
  64         /* gem hooks */
  65         .gem_init_object = udl_gem_init_object,
  66         .gem_free_object = udl_gem_free_object,
  67         .gem_vm_ops = &udl_gem_vm_ops,
  68
  69         .dumb_create = udl_dumb_create,
  70         .dumb_map_offset = udl_gem_mmap,
  71         .dumb_destroy = udl_dumb_destroy,
  72         .fops = &udl_driver_fops,
  73
  74         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
  75         .gem_prime_import = udl_gem_prime_import,
  76
  77         .name = DRIVER_NAME,
  78         .desc = DRIVER_DESC,
  79         .date = DRIVER_DATE,
  80         .major = DRIVER_MAJOR,
  81         .minor = DRIVER_MINOR,
  82         .patchlevel = DRIVER_PATCHLEVEL,
  83 };
  84
  85 static struct usb_driver udl_driver = {
  86         .name = "udl",
  87         .probe = udl_usb_probe,
  88         .disconnect = udl_usb_disconnect,
  89         .id_table = id_table,
  90 };
  91
  92 static int __init udl_init(void)
  93 {
  94         return drm_usb_init(&driver, &udl_driver);
  95 }
  96
  97 static void __exit udl_exit(void)
  98 {
  99         drm_usb_exit(&driver, &udl_driver);
 100 }
 101
 102 module_init(udl_init);
 103 module_exit(udl_exit);