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/console.h>
11#include <linux/module.h>
12#include <linux/pci.h>
13#include <linux/vt_kern.h>
14
15#include <drm/drm_crtc_helper.h>
16#include <drm/drm_drv.h>
17#include <drm/drm_fb_helper.h>
18#include <drm/drm_file.h>
19#include <drm/drm_ioctl.h>
20#include <drm/drm_managed.h>
21
22#include "vbox_drv.h"
23
24static int vbox_modeset = -1;
25
26MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
27module_param_named(modeset, vbox_modeset, int, 0400);
28
29static struct drm_driver driver;
30
31static const struct pci_device_id pciidlist[] = {
32	{ PCI_DEVICE(0x80ee, 0xbeef) },
33	{ }
34};
35MODULE_DEVICE_TABLE(pci, pciidlist);
36
37static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
38{
39	struct vbox_private *vbox;
40	int ret = 0;
41
42	if (!vbox_check_supported(VBE_DISPI_ID_HGSMI))
43		return -ENODEV;
44
45	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "vboxvideodrmfb");
46	if (ret)
47		return ret;
48
49	vbox = devm_drm_dev_alloc(&pdev->dev, &driver,
50				  struct vbox_private, ddev);
51	if (IS_ERR(vbox))
52		return PTR_ERR(vbox);
53
54	vbox->ddev.pdev = pdev;
55	pci_set_drvdata(pdev, vbox);
56	mutex_init(&vbox->hw_mutex);
57
58	ret = pcim_enable_device(pdev);
59	if (ret)
60		return ret;
61
62	ret = vbox_hw_init(vbox);
63	if (ret)
64		return ret;
65
66	ret = vbox_mm_init(vbox);
67	if (ret)
68		goto err_hw_fini;
69
70	ret = vbox_mode_init(vbox);
71	if (ret)
72		goto err_mm_fini;
73
74	ret = vbox_irq_init(vbox);
75	if (ret)
76		goto err_mode_fini;
77
78	ret = drm_dev_register(&vbox->ddev, 0);
79	if (ret)
80		goto err_irq_fini;
81
82	drm_fbdev_generic_setup(&vbox->ddev, 32);
83
84	return 0;
85
86err_irq_fini:
87	vbox_irq_fini(vbox);
88err_mode_fini:
89	vbox_mode_fini(vbox);
90err_mm_fini:
91	vbox_mm_fini(vbox);
92err_hw_fini:
93	vbox_hw_fini(vbox);
94	return ret;
95}
96
97static void vbox_pci_remove(struct pci_dev *pdev)
98{
99	struct vbox_private *vbox = pci_get_drvdata(pdev);
100
101	drm_dev_unregister(&vbox->ddev);
102	vbox_irq_fini(vbox);
103	vbox_mode_fini(vbox);
104	vbox_mm_fini(vbox);
105	vbox_hw_fini(vbox);
106}
107
108#ifdef CONFIG_PM_SLEEP
109static int vbox_pm_suspend(struct device *dev)
110{
111	struct vbox_private *vbox = dev_get_drvdata(dev);
112	int error;
113
114	error = drm_mode_config_helper_suspend(&vbox->ddev);
115	if (error)
116		return error;
117
118	pci_save_state(vbox->ddev.pdev);
119	pci_disable_device(vbox->ddev.pdev);
120	pci_set_power_state(vbox->ddev.pdev, PCI_D3hot);
121
122	return 0;
123}
124
125static int vbox_pm_resume(struct device *dev)
126{
127	struct vbox_private *vbox = dev_get_drvdata(dev);
128
129	if (pci_enable_device(vbox->ddev.pdev))
130		return -EIO;
131
132	return drm_mode_config_helper_resume(&vbox->ddev);
133}
134
135static int vbox_pm_freeze(struct device *dev)
136{
137	struct vbox_private *vbox = dev_get_drvdata(dev);
138
139	return drm_mode_config_helper_suspend(&vbox->ddev);
140}
141
142static int vbox_pm_thaw(struct device *dev)
143{
144	struct vbox_private *vbox = dev_get_drvdata(dev);
145
146	return drm_mode_config_helper_resume(&vbox->ddev);
147}
148
149static int vbox_pm_poweroff(struct device *dev)
150{
151	struct vbox_private *vbox = dev_get_drvdata(dev);
152
153	return drm_mode_config_helper_suspend(&vbox->ddev);
154}
155
156static const struct dev_pm_ops vbox_pm_ops = {
157	.suspend = vbox_pm_suspend,
158	.resume = vbox_pm_resume,
159	.freeze = vbox_pm_freeze,
160	.thaw = vbox_pm_thaw,
161	.poweroff = vbox_pm_poweroff,
162	.restore = vbox_pm_resume,
163};
164#endif
165
166static struct pci_driver vbox_pci_driver = {
167	.name = DRIVER_NAME,
168	.id_table = pciidlist,
169	.probe = vbox_pci_probe,
170	.remove = vbox_pci_remove,
171#ifdef CONFIG_PM_SLEEP
172	.driver.pm = &vbox_pm_ops,
173#endif
174};
175
176DEFINE_DRM_GEM_FOPS(vbox_fops);
177
178static struct drm_driver driver = {
179	.driver_features =
180	    DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
181
182	.lastclose = drm_fb_helper_lastclose,
183
184	.fops = &vbox_fops,
185	.irq_handler = vbox_irq_handler,
186	.name = DRIVER_NAME,
187	.desc = DRIVER_DESC,
188	.date = DRIVER_DATE,
189	.major = DRIVER_MAJOR,
190	.minor = DRIVER_MINOR,
191	.patchlevel = DRIVER_PATCHLEVEL,
192
193	DRM_GEM_VRAM_DRIVER,
194};
195
196static int __init vbox_init(void)
197{
198#ifdef CONFIG_VGA_CONSOLE
199	if (vgacon_text_force() && vbox_modeset == -1)
200		return -EINVAL;
201#endif
202
203	if (vbox_modeset == 0)
204		return -EINVAL;
205
206	return pci_register_driver(&vbox_pci_driver);
207}
208
209static void __exit vbox_exit(void)
210{
211	pci_unregister_driver(&vbox_pci_driver);
212}
213
214module_init(vbox_init);
215module_exit(vbox_exit);
216
217MODULE_AUTHOR("Oracle Corporation");
218MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
219MODULE_DESCRIPTION(DRIVER_DESC);
220MODULE_LICENSE("GPL and additional rights");
221