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
24 static int vbox_modeset = -1;
25
26 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
27 module_param_named(modeset, vbox_modeset, int, 0400);
28
29 static struct drm_driver driver;
30
31 static const struct pci_device_id pciidlist[] = {
32 { PCI_DEVICE(0x80ee, 0xbeef) },
33 { }
34 };
35 MODULE_DEVICE_TABLE(pci, pciidlist);
36
vbox_pci_probe(struct pci_dev * pdev,const struct pci_device_id * ent)37 static 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
86 err_irq_fini:
87 vbox_irq_fini(vbox);
88 err_mode_fini:
89 vbox_mode_fini(vbox);
90 err_mm_fini:
91 vbox_mm_fini(vbox);
92 err_hw_fini:
93 vbox_hw_fini(vbox);
94 return ret;
95 }
96
vbox_pci_remove(struct pci_dev * pdev)97 static 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
vbox_pm_suspend(struct device * dev)109 static 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
vbox_pm_resume(struct device * dev)125 static 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
vbox_pm_freeze(struct device * dev)135 static 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
vbox_pm_thaw(struct device * dev)142 static 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
vbox_pm_poweroff(struct device * dev)149 static 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
156 static 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
166 static 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
176 DEFINE_DRM_GEM_FOPS(vbox_fops);
177
178 static 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
vbox_init(void)196 static 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
vbox_exit(void)209 static void __exit vbox_exit(void)
210 {
211 pci_unregister_driver(&vbox_pci_driver);
212 }
213
214 module_init(vbox_init);
215 module_exit(vbox_exit);
216
217 MODULE_AUTHOR("Oracle Corporation");
218 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
219 MODULE_DESCRIPTION(DRIVER_DESC);
220 MODULE_LICENSE("GPL and additional rights");
221