projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5320918b DA |
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 | ||
| e5a867a5 DA |
16 | /* |
| 17 | * There are many DisplayLink-based graphics products, all with unique PIDs. | |
| 18 | * So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff) | |
| 19 | * We also require a match on SubClass (0x00) and Protocol (0x00), | |
| 20 | * which is compatible with all known USB 2.0 era graphics chips and firmware, | |
| 21 | * but allows DisplayLink to increment those for any future incompatible chips | |
| 22 | */ | |
| 5320918b | 23 | static struct usb_device_id id_table[] = { |
| e5a867a5 DA |
24 | {.idVendor = 0x17e9, .bInterfaceClass = 0xff, |
| 25 | .bInterfaceSubClass = 0x00, | |
| 26 | .bInterfaceProtocol = 0x00, | |
| 27 | .match_flags = USB_DEVICE_ID_MATCH_VENDOR | | |
| 28 | USB_DEVICE_ID_MATCH_INT_CLASS | | |
| 29 | USB_DEVICE_ID_MATCH_INT_SUBCLASS | | |
| 30 | USB_DEVICE_ID_MATCH_INT_PROTOCOL,}, | |
| 5320918b DA |
31 | {}, |
| 32 | }; | |
| 33 | MODULE_DEVICE_TABLE(usb, id_table); | |
| 34 | ||
| 35 | MODULE_LICENSE("GPL"); | |
| 36 | ||
| 37 | static int udl_usb_probe(struct usb_interface *interface, | |
| 38 | const struct usb_device_id *id) | |
| 39 | { | |
| 40 | return drm_get_usb_dev(interface, id, &driver); | |
| 41 | } | |
| 42 | ||
| 43 | static void udl_usb_disconnect(struct usb_interface *interface) | |
| 44 | { | |
| 45 | struct drm_device *dev = usb_get_intfdata(interface); | |
| 46 | ||
| 47 | drm_kms_helper_poll_disable(dev); | |
| 48 | drm_connector_unplug_all(dev); | |
| 49 | udl_fbdev_unplug(dev); | |
| 50 | udl_drop_usb(dev); | |
| 51 | drm_unplug_dev(dev); | |
| 52 | } | |
| 53 | ||
| 78b68556 | 54 | static const struct vm_operations_struct udl_gem_vm_ops = { |
| 5320918b DA |
55 | .fault = udl_gem_fault, |
| 56 | .open = drm_gem_vm_open, | |
| 57 | .close = drm_gem_vm_close, | |
| 58 | }; | |
| 59 | ||
| 60 | static const struct file_operations udl_driver_fops = { | |
| 61 | .owner = THIS_MODULE, | |
| 62 | .open = drm_open, | |
| fa9e8550 | 63 | .mmap = udl_drm_gem_mmap, |
| 5320918b DA |
64 | .poll = drm_poll, |
| 65 | .read = drm_read, | |
| 66 | .unlocked_ioctl = drm_ioctl, | |
| 67 | .release = drm_release, | |
| 68 | .fasync = drm_fasync, | |
| 69 | .llseek = noop_llseek, | |
| 70 | }; | |
| 71 | ||
| 72 | static struct drm_driver driver = { | |
| 96503f59 | 73 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, |
| 5320918b DA |
74 | .load = udl_driver_load, |
| 75 | .unload = udl_driver_unload, | |
| 76 | ||
| 77 | /* gem hooks */ | |
| 78 | .gem_init_object = udl_gem_init_object, | |
| 79 | .gem_free_object = udl_gem_free_object, | |
| 80 | .gem_vm_ops = &udl_gem_vm_ops, | |
| 81 | ||
| 82 | .dumb_create = udl_dumb_create, | |
| 83 | .dumb_map_offset = udl_gem_mmap, | |
| 84 | .dumb_destroy = udl_dumb_destroy, | |
| 85 | .fops = &udl_driver_fops, | |
| 96503f59 DA |
86 | |
| 87 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
| 88 | .gem_prime_import = udl_gem_prime_import, | |
| 89 | ||
| 5320918b DA |
90 | .name = DRIVER_NAME, |
| 91 | .desc = DRIVER_DESC, | |
| 92 | .date = DRIVER_DATE, | |
| 93 | .major = DRIVER_MAJOR, | |
| 94 | .minor = DRIVER_MINOR, | |
| 95 | .patchlevel = DRIVER_PATCHLEVEL, | |
| 96 | }; | |
| 97 | ||
| 98 | static struct usb_driver udl_driver = { | |
| 99 | .name = "udl", | |
| 100 | .probe = udl_usb_probe, | |
| 101 | .disconnect = udl_usb_disconnect, | |
| 102 | .id_table = id_table, | |
| 103 | }; | |
| 104 | ||
| 105 | static int __init udl_init(void) | |
| 106 | { | |
| 107 | return drm_usb_init(&driver, &udl_driver); | |
| 108 | } | |
| 109 | ||
| 110 | static void __exit udl_exit(void) | |
| 111 | { | |
| 112 | drm_usb_exit(&driver, &udl_driver); | |
| 113 | } | |
| 114 | ||
| 115 | module_init(udl_init); | |
| 116 | module_exit(udl_exit); |