LXR linux/drivers/gpu/drm/qxl/qxl

   1/* vim: set ts=8 sw=8 tw=78 ai noexpandtab */
   2/* qxl_drv.c -- QXL driver -*- linux-c -*-
   3 *
   4 * Copyright 2011 Red Hat, Inc.
   5 * All Rights Reserved.
   6 *
   7 * Permission is hereby granted, free of charge, to any person obtaining a
   8 * copy of this software and associated documentation files (the "Software"),
   9 * to deal in the Software without restriction, including without limitation
  10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11 * and/or sell copies of the Software, and to permit persons to whom the
  12 * Software is furnished to do so, subject to the following conditions:
  13 *
  14 * The above copyright notice and this permission notice (including the next
  15 * paragraph) shall be included in all copies or substantial portions of the
  16 * Software.
  17 *
  18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24 * OTHER DEALINGS IN THE SOFTWARE.
  25 *
  26 * Authors:
  27 *    Dave Airlie <airlie@redhat.com>
  28 *    Alon Levy <alevy@redhat.com>
  29 */
  30
  31#include <linux/module.h>
  32#include <linux/console.h>
  33
  34#include "drmP.h"
  35#include "drm/drm.h"
  36
  37#include "qxl_drv.h"
  38
  39extern int qxl_max_ioctls;
  40static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
  41        { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
  42          0xffff00, 0 },
  43        { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
  44          0xffff00, 0 },
  45        { 0, 0, 0 },
  46};
  47MODULE_DEVICE_TABLE(pci, pciidlist);
  48
  49static int qxl_modeset = -1;
  50
  51MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
  52module_param_named(modeset, qxl_modeset, int, 0400);
  53
  54static struct drm_driver qxl_driver;
  55static struct pci_driver qxl_pci_driver;
  56
  57static int
  58qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
  59{
  60        if (pdev->revision < 4) {
  61                DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
  62                          " use xf86-video-qxl in user mode");
  63                return -EINVAL; /* TODO: ENODEV ? */
  64        }
  65        return drm_get_pci_dev(pdev, ent, &qxl_driver);
  66}
  67
  68static void
  69qxl_pci_remove(struct pci_dev *pdev)
  70{
  71        struct drm_device *dev = pci_get_drvdata(pdev);
  72
  73        drm_put_dev(dev);
  74}
  75
  76static struct pci_driver qxl_pci_driver = {
  77         .name = DRIVER_NAME,
  78         .id_table = pciidlist,
  79         .probe = qxl_pci_probe,
  80         .remove = qxl_pci_remove,
  81};
  82
  83static const struct file_operations qxl_fops = {
  84        .owner = THIS_MODULE,
  85        .open = drm_open,
  86        .release = drm_release,
  87        .unlocked_ioctl = drm_ioctl,
  88        .poll = drm_poll,
  89        .fasync = drm_fasync,
  90        .mmap = qxl_mmap,
  91};
  92
  93static struct drm_driver qxl_driver = {
  94        .driver_features = DRIVER_GEM | DRIVER_MODESET |
  95                           DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
  96        .dev_priv_size = 0,
  97        .load = qxl_driver_load,
  98        .unload = qxl_driver_unload,
  99
 100        .dumb_create = qxl_mode_dumb_create,
 101        .dumb_map_offset = qxl_mode_dumb_mmap,
 102        .dumb_destroy = qxl_mode_dumb_destroy,
 103#if defined(CONFIG_DEBUG_FS)
 104        .debugfs_init = qxl_debugfs_init,
 105        .debugfs_cleanup = qxl_debugfs_takedown,
 106#endif
 107        .gem_init_object = qxl_gem_object_init,
 108        .gem_free_object = qxl_gem_object_free,
 109        .gem_open_object = qxl_gem_object_open,
 110        .gem_close_object = qxl_gem_object_close,
 111        .fops = &qxl_fops,
 112        .ioctls = qxl_ioctls,
 113        .irq_handler = qxl_irq_handler,
 114        .name = DRIVER_NAME,
 115        .desc = DRIVER_DESC,
 116        .date = DRIVER_DATE,
 117        .major = 0,
 118        .minor = 1,
 119        .patchlevel = 0,
 120};
 121
 122static int __init qxl_init(void)
 123{
 124#ifdef CONFIG_VGA_CONSOLE
 125        if (vgacon_text_force() && qxl_modeset == -1)
 126                return -EINVAL;
 127#endif
 128
 129        if (qxl_modeset == 0)
 130                return -EINVAL;
 131        qxl_driver.num_ioctls = qxl_max_ioctls;
 132        return drm_pci_init(&qxl_driver, &qxl_pci_driver);
 133}
 134
 135static void __exit qxl_exit(void)
 136{
 137        drm_pci_exit(&qxl_driver, &qxl_pci_driver);
 138}
 139
 140module_init(qxl_init);
 141module_exit(qxl_exit);
 142
 143MODULE_AUTHOR(DRIVER_AUTHOR);
 144MODULE_DESCRIPTION(DRIVER_DESC);
 145MODULE_LICENSE("GPL and additional rights");
 146