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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/drmP.h>
11#include <drm/drm_crtc_helper.h>
12#include "udl_drv.h"
13
14static int udl_driver_set_busid(struct drm_device *d, struct drm_master *m)
15{
16 return 0;
17}
18
19static int udl_usb_suspend(struct usb_interface *interface,
20 pm_message_t message)
21{
22 return 0;
23}
24
25static int udl_usb_resume(struct usb_interface *interface)
26{
27 struct drm_device *dev = usb_get_intfdata(interface);
28
29 udl_modeset_restore(dev);
30 return 0;
31}
32
33static const struct vm_operations_struct udl_gem_vm_ops = {
34 .fault = udl_gem_fault,
35 .open = drm_gem_vm_open,
36 .close = drm_gem_vm_close,
37};
38
39static const struct file_operations udl_driver_fops = {
40 .owner = THIS_MODULE,
41 .open = drm_open,
42 .mmap = udl_drm_gem_mmap,
43 .poll = drm_poll,
44 .read = drm_read,
45 .unlocked_ioctl = drm_ioctl,
46 .release = drm_release,
47 .compat_ioctl = drm_compat_ioctl,
48 .llseek = noop_llseek,
49};
50
51static struct drm_driver driver = {
52 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
53 .load = udl_driver_load,
54 .unload = udl_driver_unload,
55 .set_busid = udl_driver_set_busid,
56
57 /* gem hooks */
58 .gem_free_object = udl_gem_free_object,
59 .gem_vm_ops = &udl_gem_vm_ops,
60
61 .dumb_create = udl_dumb_create,
62 .dumb_map_offset = udl_gem_mmap,
63 .dumb_destroy = drm_gem_dumb_destroy,
64 .fops = &udl_driver_fops,
65
66 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
67 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
68 .gem_prime_export = udl_gem_prime_export,
69 .gem_prime_import = udl_gem_prime_import,
70
71 .name = DRIVER_NAME,
72 .desc = DRIVER_DESC,
73 .date = DRIVER_DATE,
74 .major = DRIVER_MAJOR,
75 .minor = DRIVER_MINOR,
76 .patchlevel = DRIVER_PATCHLEVEL,
77};
78
79static int udl_usb_probe(struct usb_interface *interface,
80 const struct usb_device_id *id)
81{
82 struct usb_device *udev = interface_to_usbdev(interface);
83 struct drm_device *dev;
84 int r;
85
86 dev = drm_dev_alloc(&driver, &interface->dev);
87 if (IS_ERR(dev))
88 return PTR_ERR(dev);
89
90 r = drm_dev_register(dev, (unsigned long)udev);
91 if (r)
92 goto err_free;
93
94 usb_set_intfdata(interface, dev);
95 DRM_INFO("Initialized udl on minor %d\n", dev->primary->index);
96
97 return 0;
98
99err_free:
100 drm_dev_unref(dev);
101 return r;
102}
103
104static void udl_usb_disconnect(struct usb_interface *interface)
105{
106 struct drm_device *dev = usb_get_intfdata(interface);
107
108 drm_kms_helper_poll_disable(dev);
109 udl_fbdev_unplug(dev);
110 udl_drop_usb(dev);
111 drm_unplug_dev(dev);
112}
113
114/*
115 * There are many DisplayLink-based graphics products, all with unique PIDs.
116 * So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff)
117 * We also require a match on SubClass (0x00) and Protocol (0x00),
118 * which is compatible with all known USB 2.0 era graphics chips and firmware,
119 * but allows DisplayLink to increment those for any future incompatible chips
120 */
121static struct usb_device_id id_table[] = {
122 {.idVendor = 0x17e9, .bInterfaceClass = 0xff,
123 .bInterfaceSubClass = 0x00,
124 .bInterfaceProtocol = 0x00,
125 .match_flags = USB_DEVICE_ID_MATCH_VENDOR |
126 USB_DEVICE_ID_MATCH_INT_CLASS |
127 USB_DEVICE_ID_MATCH_INT_SUBCLASS |
128 USB_DEVICE_ID_MATCH_INT_PROTOCOL,},
129 {},
130};
131MODULE_DEVICE_TABLE(usb, id_table);
132
133static struct usb_driver udl_driver = {
134 .name = "udl",
135 .probe = udl_usb_probe,
136 .disconnect = udl_usb_disconnect,
137 .suspend = udl_usb_suspend,
138 .resume = udl_usb_resume,
139 .id_table = id_table,
140};
141module_usb_driver(udl_driver);
142MODULE_LICENSE("GPL");
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/drmP.h>
11#include <drm/drm_crtc_helper.h>
12#include "udl_drv.h"
13
14static int udl_usb_suspend(struct usb_interface *interface,
15 pm_message_t message)
16{
17 struct drm_device *dev = usb_get_intfdata(interface);
18
19 drm_kms_helper_poll_disable(dev);
20 return 0;
21}
22
23static int udl_usb_resume(struct usb_interface *interface)
24{
25 struct drm_device *dev = usb_get_intfdata(interface);
26
27 drm_kms_helper_poll_enable(dev);
28 udl_modeset_restore(dev);
29 return 0;
30}
31
32static const struct vm_operations_struct udl_gem_vm_ops = {
33 .fault = udl_gem_fault,
34 .open = drm_gem_vm_open,
35 .close = drm_gem_vm_close,
36};
37
38static const struct file_operations udl_driver_fops = {
39 .owner = THIS_MODULE,
40 .open = drm_open,
41 .mmap = udl_drm_gem_mmap,
42 .poll = drm_poll,
43 .read = drm_read,
44 .unlocked_ioctl = drm_ioctl,
45 .release = drm_release,
46 .compat_ioctl = drm_compat_ioctl,
47 .llseek = noop_llseek,
48};
49
50static struct drm_driver driver = {
51 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
52 .load = udl_driver_load,
53 .unload = udl_driver_unload,
54
55 /* gem hooks */
56 .gem_free_object = udl_gem_free_object,
57 .gem_vm_ops = &udl_gem_vm_ops,
58
59 .dumb_create = udl_dumb_create,
60 .dumb_map_offset = udl_gem_mmap,
61 .fops = &udl_driver_fops,
62
63 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
64 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
65 .gem_prime_export = udl_gem_prime_export,
66 .gem_prime_import = udl_gem_prime_import,
67
68 .name = DRIVER_NAME,
69 .desc = DRIVER_DESC,
70 .date = DRIVER_DATE,
71 .major = DRIVER_MAJOR,
72 .minor = DRIVER_MINOR,
73 .patchlevel = DRIVER_PATCHLEVEL,
74};
75
76static int udl_usb_probe(struct usb_interface *interface,
77 const struct usb_device_id *id)
78{
79 struct usb_device *udev = interface_to_usbdev(interface);
80 struct drm_device *dev;
81 int r;
82
83 dev = drm_dev_alloc(&driver, &interface->dev);
84 if (IS_ERR(dev))
85 return PTR_ERR(dev);
86
87 r = drm_dev_register(dev, (unsigned long)udev);
88 if (r)
89 goto err_free;
90
91 usb_set_intfdata(interface, dev);
92 DRM_INFO("Initialized udl on minor %d\n", dev->primary->index);
93
94 return 0;
95
96err_free:
97 drm_dev_unref(dev);
98 return r;
99}
100
101static void udl_usb_disconnect(struct usb_interface *interface)
102{
103 struct drm_device *dev = usb_get_intfdata(interface);
104
105 drm_kms_helper_poll_disable(dev);
106 udl_fbdev_unplug(dev);
107 udl_drop_usb(dev);
108 drm_dev_unplug(dev);
109}
110
111/*
112 * There are many DisplayLink-based graphics products, all with unique PIDs.
113 * So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff)
114 * We also require a match on SubClass (0x00) and Protocol (0x00),
115 * which is compatible with all known USB 2.0 era graphics chips and firmware,
116 * but allows DisplayLink to increment those for any future incompatible chips
117 */
118static const struct usb_device_id id_table[] = {
119 {.idVendor = 0x17e9, .bInterfaceClass = 0xff,
120 .bInterfaceSubClass = 0x00,
121 .bInterfaceProtocol = 0x00,
122 .match_flags = USB_DEVICE_ID_MATCH_VENDOR |
123 USB_DEVICE_ID_MATCH_INT_CLASS |
124 USB_DEVICE_ID_MATCH_INT_SUBCLASS |
125 USB_DEVICE_ID_MATCH_INT_PROTOCOL,},
126 {},
127};
128MODULE_DEVICE_TABLE(usb, id_table);
129
130static struct usb_driver udl_driver = {
131 .name = "udl",
132 .probe = udl_usb_probe,
133 .disconnect = udl_usb_disconnect,
134 .suspend = udl_usb_suspend,
135 .resume = udl_usb_resume,
136 .id_table = id_table,
137};
138module_usb_driver(udl_driver);
139MODULE_LICENSE("GPL");