1// SPDX-License-Identifier: MIT
2/*
3 * Copyright (C) 2013-2017 Oracle Corporation
4 * This file is based on ast_drv.c
5 * Copyright 2012 Red Hat Inc.
6 * Authors: Dave Airlie <airlied@redhat.com>
7 * Michael Thayer <michael.thayer@oracle.com,
8 * Hans de Goede <hdegoede@redhat.com>
9 */
10#include <linux/module.h>
11#include <linux/pci.h>
12#include <linux/vt_kern.h>
13
14#include <drm/drm_aperture.h>
15#include <drm/drm_atomic_helper.h>
16#include <drm/drm_drv.h>
17#include <drm/drm_fbdev_generic.h>
18#include <drm/drm_file.h>
19#include <drm/drm_ioctl.h>
20#include <drm/drm_managed.h>
21#include <drm/drm_modeset_helper.h>
22#include <drm/drm_module.h>
23
24#include "vbox_drv.h"
25
26static int vbox_modeset = -1;
27
28MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
29module_param_named(modeset, vbox_modeset, int, 0400);
30
31static const struct drm_driver driver;
32
33static const struct pci_device_id pciidlist[] = {
34 { PCI_DEVICE(0x80ee, 0xbeef) },
35 { }
36};
37MODULE_DEVICE_TABLE(pci, pciidlist);
38
39static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
40{
41 struct vbox_private *vbox;
42 int ret = 0;
43
44 if (!vbox_check_supported(VBE_DISPI_ID_HGSMI))
45 return -ENODEV;
46
47 ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, req_driver: &driver);
48 if (ret)
49 return ret;
50
51 vbox = devm_drm_dev_alloc(&pdev->dev, &driver,
52 struct vbox_private, ddev);
53 if (IS_ERR(ptr: vbox))
54 return PTR_ERR(ptr: vbox);
55
56 pci_set_drvdata(pdev, data: vbox);
57 mutex_init(&vbox->hw_mutex);
58
59 ret = pcim_enable_device(pdev);
60 if (ret)
61 return ret;
62
63 ret = vbox_hw_init(vbox);
64 if (ret)
65 return ret;
66
67 ret = vbox_mm_init(vbox);
68 if (ret)
69 goto err_hw_fini;
70
71 ret = vbox_mode_init(vbox);
72 if (ret)
73 goto err_hw_fini;
74
75 ret = vbox_irq_init(vbox);
76 if (ret)
77 goto err_mode_fini;
78
79 ret = drm_dev_register(dev: &vbox->ddev, flags: 0);
80 if (ret)
81 goto err_irq_fini;
82
83 drm_fbdev_generic_setup(dev: &vbox->ddev, preferred_bpp: 32);
84
85 return 0;
86
87err_irq_fini:
88 vbox_irq_fini(vbox);
89err_mode_fini:
90 vbox_mode_fini(vbox);
91err_hw_fini:
92 vbox_hw_fini(vbox);
93 return ret;
94}
95
96static void vbox_pci_remove(struct pci_dev *pdev)
97{
98 struct vbox_private *vbox = pci_get_drvdata(pdev);
99
100 drm_dev_unregister(dev: &vbox->ddev);
101 drm_atomic_helper_shutdown(dev: &vbox->ddev);
102 vbox_irq_fini(vbox);
103 vbox_mode_fini(vbox);
104 vbox_hw_fini(vbox);
105}
106
107static void vbox_pci_shutdown(struct pci_dev *pdev)
108{
109 struct vbox_private *vbox = pci_get_drvdata(pdev);
110
111 drm_atomic_helper_shutdown(dev: &vbox->ddev);
112}
113
114static int vbox_pm_suspend(struct device *dev)
115{
116 struct vbox_private *vbox = dev_get_drvdata(dev);
117 struct pci_dev *pdev = to_pci_dev(dev);
118 int error;
119
120 error = drm_mode_config_helper_suspend(dev: &vbox->ddev);
121 if (error)
122 return error;
123
124 pci_save_state(dev: pdev);
125 pci_disable_device(dev: pdev);
126 pci_set_power_state(dev: pdev, PCI_D3hot);
127
128 return 0;
129}
130
131static int vbox_pm_resume(struct device *dev)
132{
133 struct vbox_private *vbox = dev_get_drvdata(dev);
134 struct pci_dev *pdev = to_pci_dev(dev);
135
136 if (pci_enable_device(dev: pdev))
137 return -EIO;
138
139 return drm_mode_config_helper_resume(dev: &vbox->ddev);
140}
141
142static int vbox_pm_freeze(struct device *dev)
143{
144 struct vbox_private *vbox = dev_get_drvdata(dev);
145
146 return drm_mode_config_helper_suspend(dev: &vbox->ddev);
147}
148
149static int vbox_pm_thaw(struct device *dev)
150{
151 struct vbox_private *vbox = dev_get_drvdata(dev);
152
153 return drm_mode_config_helper_resume(dev: &vbox->ddev);
154}
155
156static int vbox_pm_poweroff(struct device *dev)
157{
158 struct vbox_private *vbox = dev_get_drvdata(dev);
159
160 return drm_mode_config_helper_suspend(dev: &vbox->ddev);
161}
162
163static const struct dev_pm_ops vbox_pm_ops = {
164 .suspend = vbox_pm_suspend,
165 .resume = vbox_pm_resume,
166 .freeze = vbox_pm_freeze,
167 .thaw = vbox_pm_thaw,
168 .poweroff = vbox_pm_poweroff,
169 .restore = vbox_pm_resume,
170};
171
172static struct pci_driver vbox_pci_driver = {
173 .name = DRIVER_NAME,
174 .id_table = pciidlist,
175 .probe = vbox_pci_probe,
176 .remove = vbox_pci_remove,
177 .shutdown = vbox_pci_shutdown,
178 .driver.pm = pm_sleep_ptr(&vbox_pm_ops),
179};
180
181DEFINE_DRM_GEM_FOPS(vbox_fops);
182
183static const struct drm_driver driver = {
184 .driver_features =
185 DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
186
187 .fops = &vbox_fops,
188 .name = DRIVER_NAME,
189 .desc = DRIVER_DESC,
190 .date = DRIVER_DATE,
191 .major = DRIVER_MAJOR,
192 .minor = DRIVER_MINOR,
193 .patchlevel = DRIVER_PATCHLEVEL,
194
195 DRM_GEM_VRAM_DRIVER,
196};
197
198drm_module_pci_driver_if_modeset(vbox_pci_driver, vbox_modeset);
199
200MODULE_AUTHOR("Oracle Corporation");
201MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
202MODULE_DESCRIPTION(DRIVER_DESC);
203MODULE_LICENSE("GPL and additional rights");
204

source code of linux/drivers/gpu/drm/vboxvideo/vbox_drv.c