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43387b37fa
All the gem based kms drivers really want the same function to destroy a dumb framebuffer backing storage object. So give it to them and roll it out in all drivers. This still leaves the option open for kms drivers which don't use GEM for backing storage, but it does decently simplify matters for gem drivers. Acked-by: Inki Dae <inki.dae@samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org> Cc: Ben Skeggs <skeggsb@gmail.com> Reviwed-by: Rob Clark <robdclark@gmail.com> Cc: Alex Deucher <alexdeucher@gmail.com> Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
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* Copyright (C) 2012 Red Hat
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License v2. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <linux/module.h>
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#include <drm/drm_usb.h>
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#include <drm/drm_crtc_helper.h>
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#include "udl_drv.h"
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static struct drm_driver driver;
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/*
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* There are many DisplayLink-based graphics products, all with unique PIDs.
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* So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff)
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* We also require a match on SubClass (0x00) and Protocol (0x00),
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* which is compatible with all known USB 2.0 era graphics chips and firmware,
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* but allows DisplayLink to increment those for any future incompatible chips
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*/
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static struct usb_device_id id_table[] = {
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{.idVendor = 0x17e9, .bInterfaceClass = 0xff,
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.bInterfaceSubClass = 0x00,
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.bInterfaceProtocol = 0x00,
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.match_flags = USB_DEVICE_ID_MATCH_VENDOR |
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USB_DEVICE_ID_MATCH_INT_CLASS |
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USB_DEVICE_ID_MATCH_INT_SUBCLASS |
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USB_DEVICE_ID_MATCH_INT_PROTOCOL,},
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{},
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};
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MODULE_DEVICE_TABLE(usb, id_table);
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MODULE_LICENSE("GPL");
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static int udl_usb_probe(struct usb_interface *interface,
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const struct usb_device_id *id)
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{
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return drm_get_usb_dev(interface, id, &driver);
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}
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static void udl_usb_disconnect(struct usb_interface *interface)
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{
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struct drm_device *dev = usb_get_intfdata(interface);
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drm_kms_helper_poll_disable(dev);
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drm_connector_unplug_all(dev);
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udl_fbdev_unplug(dev);
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udl_drop_usb(dev);
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drm_unplug_dev(dev);
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}
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static const struct vm_operations_struct udl_gem_vm_ops = {
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.fault = udl_gem_fault,
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.open = drm_gem_vm_open,
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.close = drm_gem_vm_close,
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};
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static const struct file_operations udl_driver_fops = {
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.owner = THIS_MODULE,
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.open = drm_open,
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.mmap = udl_drm_gem_mmap,
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.poll = drm_poll,
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.read = drm_read,
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.unlocked_ioctl = drm_ioctl,
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.release = drm_release,
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.fasync = drm_fasync,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = drm_compat_ioctl,
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#endif
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.llseek = noop_llseek,
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};
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static struct drm_driver driver = {
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.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
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.load = udl_driver_load,
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.unload = udl_driver_unload,
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/* gem hooks */
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.gem_init_object = udl_gem_init_object,
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.gem_free_object = udl_gem_free_object,
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.gem_vm_ops = &udl_gem_vm_ops,
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.dumb_create = udl_dumb_create,
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.dumb_map_offset = udl_gem_mmap,
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.dumb_destroy = drm_gem_dumb_destroy,
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.fops = &udl_driver_fops,
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.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
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.gem_prime_import = udl_gem_prime_import,
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.name = DRIVER_NAME,
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.desc = DRIVER_DESC,
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.date = DRIVER_DATE,
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.major = DRIVER_MAJOR,
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.minor = DRIVER_MINOR,
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.patchlevel = DRIVER_PATCHLEVEL,
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};
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static struct usb_driver udl_driver = {
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.name = "udl",
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.probe = udl_usb_probe,
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.disconnect = udl_usb_disconnect,
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.id_table = id_table,
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};
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static int __init udl_init(void)
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{
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return drm_usb_init(&driver, &udl_driver);
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}
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static void __exit udl_exit(void)
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{
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drm_usb_exit(&driver, &udl_driver);
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}
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module_init(udl_init);
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module_exit(udl_exit);
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