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_drv.h>
16 #include <drm/drm_fbdev_generic.h>
17 #include <drm/drm_file.h>
18 #include <drm/drm_ioctl.h>
19 #include <drm/drm_managed.h>
20 #include <drm/drm_modeset_helper.h>
21 #include <drm/drm_module.h>
22
23 #include "vbox_drv.h"
24
25 static int vbox_modeset = -1;
26
27 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
28 module_param_named(modeset, vbox_modeset, int, 0400);
29
30 static const struct drm_driver driver;
31
32 static const struct pci_device_id pciidlist[] = {
33 { PCI_DEVICE(0x80ee, 0xbeef) },
34 { }
35 };
36 MODULE_DEVICE_TABLE(pci, pciidlist);
37
vbox_pci_probe(struct pci_dev * pdev,const struct pci_device_id * ent)38 static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
39 {
40 struct vbox_private *vbox;
41 int ret = 0;
42
43 if (!vbox_check_supported(VBE_DISPI_ID_HGSMI))
44 return -ENODEV;
45
46 ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver);
47 if (ret)
48 return ret;
49
50 vbox = devm_drm_dev_alloc(&pdev->dev, &driver,
51 struct vbox_private, ddev);
52 if (IS_ERR(vbox))
53 return PTR_ERR(vbox);
54
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_hw_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_hw_fini:
91 vbox_hw_fini(vbox);
92 return ret;
93 }
94
vbox_pci_remove(struct pci_dev * pdev)95 static void vbox_pci_remove(struct pci_dev *pdev)
96 {
97 struct vbox_private *vbox = pci_get_drvdata(pdev);
98
99 drm_dev_unregister(&vbox->ddev);
100 vbox_irq_fini(vbox);
101 vbox_mode_fini(vbox);
102 vbox_hw_fini(vbox);
103 }
104
vbox_pm_suspend(struct device * dev)105 static int vbox_pm_suspend(struct device *dev)
106 {
107 struct vbox_private *vbox = dev_get_drvdata(dev);
108 struct pci_dev *pdev = to_pci_dev(dev);
109 int error;
110
111 error = drm_mode_config_helper_suspend(&vbox->ddev);
112 if (error)
113 return error;
114
115 pci_save_state(pdev);
116 pci_disable_device(pdev);
117 pci_set_power_state(pdev, PCI_D3hot);
118
119 return 0;
120 }
121
vbox_pm_resume(struct device * dev)122 static int vbox_pm_resume(struct device *dev)
123 {
124 struct vbox_private *vbox = dev_get_drvdata(dev);
125 struct pci_dev *pdev = to_pci_dev(dev);
126
127 if (pci_enable_device(pdev))
128 return -EIO;
129
130 return drm_mode_config_helper_resume(&vbox->ddev);
131 }
132
vbox_pm_freeze(struct device * dev)133 static int vbox_pm_freeze(struct device *dev)
134 {
135 struct vbox_private *vbox = dev_get_drvdata(dev);
136
137 return drm_mode_config_helper_suspend(&vbox->ddev);
138 }
139
vbox_pm_thaw(struct device * dev)140 static int vbox_pm_thaw(struct device *dev)
141 {
142 struct vbox_private *vbox = dev_get_drvdata(dev);
143
144 return drm_mode_config_helper_resume(&vbox->ddev);
145 }
146
vbox_pm_poweroff(struct device * dev)147 static int vbox_pm_poweroff(struct device *dev)
148 {
149 struct vbox_private *vbox = dev_get_drvdata(dev);
150
151 return drm_mode_config_helper_suspend(&vbox->ddev);
152 }
153
154 static const struct dev_pm_ops vbox_pm_ops = {
155 .suspend = vbox_pm_suspend,
156 .resume = vbox_pm_resume,
157 .freeze = vbox_pm_freeze,
158 .thaw = vbox_pm_thaw,
159 .poweroff = vbox_pm_poweroff,
160 .restore = vbox_pm_resume,
161 };
162
163 static struct pci_driver vbox_pci_driver = {
164 .name = DRIVER_NAME,
165 .id_table = pciidlist,
166 .probe = vbox_pci_probe,
167 .remove = vbox_pci_remove,
168 .driver.pm = pm_sleep_ptr(&vbox_pm_ops),
169 };
170
171 DEFINE_DRM_GEM_FOPS(vbox_fops);
172
173 static const struct drm_driver driver = {
174 .driver_features =
175 DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
176
177 .fops = &vbox_fops,
178 .name = DRIVER_NAME,
179 .desc = DRIVER_DESC,
180 .date = DRIVER_DATE,
181 .major = DRIVER_MAJOR,
182 .minor = DRIVER_MINOR,
183 .patchlevel = DRIVER_PATCHLEVEL,
184
185 DRM_GEM_VRAM_DRIVER,
186 };
187
188 drm_module_pci_driver_if_modeset(vbox_pci_driver, vbox_modeset);
189
190 MODULE_AUTHOR("Oracle Corporation");
191 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
192 MODULE_DESCRIPTION(DRIVER_DESC);
193 MODULE_LICENSE("GPL and additional rights");
194