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_aperture.h>
 16#include <drm/drm_crtc_helper.h>
 17#include <drm/drm_drv.h>
 18#include <drm/drm_fb_helper.h>
 19#include <drm/drm_file.h>
 20#include <drm/drm_ioctl.h>
 21#include <drm/drm_managed.h>
 22
 23#include "vbox_drv.h"
 24
 25static int vbox_modeset = -1;
 26
 27MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
 28module_param_named(modeset, vbox_modeset, int, 0400);
 29
 30static const struct drm_driver driver;
 31
 32static const struct pci_device_id pciidlist[] = {
 33	{ PCI_DEVICE(0x80ee, 0xbeef) },
 34	{ }
 35};
 36MODULE_DEVICE_TABLE(pci, pciidlist);
 37
 38static 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, "vboxvideodrmfb");
 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_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	struct pci_dev *pdev = to_pci_dev(dev);
113	int error;
114
115	error = drm_mode_config_helper_suspend(&vbox->ddev);
116	if (error)
117		return error;
118
119	pci_save_state(pdev);
120	pci_disable_device(pdev);
121	pci_set_power_state(pdev, PCI_D3hot);
122
123	return 0;
124}
125
126static int vbox_pm_resume(struct device *dev)
127{
128	struct vbox_private *vbox = dev_get_drvdata(dev);
129	struct pci_dev *pdev = to_pci_dev(dev);
130
131	if (pci_enable_device(pdev))
132		return -EIO;
133
134	return drm_mode_config_helper_resume(&vbox->ddev);
135}
136
137static int vbox_pm_freeze(struct device *dev)
138{
139	struct vbox_private *vbox = dev_get_drvdata(dev);
140
141	return drm_mode_config_helper_suspend(&vbox->ddev);
142}
143
144static int vbox_pm_thaw(struct device *dev)
145{
146	struct vbox_private *vbox = dev_get_drvdata(dev);
147
148	return drm_mode_config_helper_resume(&vbox->ddev);
149}
150
151static int vbox_pm_poweroff(struct device *dev)
152{
153	struct vbox_private *vbox = dev_get_drvdata(dev);
154
155	return drm_mode_config_helper_suspend(&vbox->ddev);
156}
157
158static const struct dev_pm_ops vbox_pm_ops = {
159	.suspend = vbox_pm_suspend,
160	.resume = vbox_pm_resume,
161	.freeze = vbox_pm_freeze,
162	.thaw = vbox_pm_thaw,
163	.poweroff = vbox_pm_poweroff,
164	.restore = vbox_pm_resume,
165};
166#endif
167
168static struct pci_driver vbox_pci_driver = {
169	.name = DRIVER_NAME,
170	.id_table = pciidlist,
171	.probe = vbox_pci_probe,
172	.remove = vbox_pci_remove,
173#ifdef CONFIG_PM_SLEEP
174	.driver.pm = &vbox_pm_ops,
175#endif
176};
177
178DEFINE_DRM_GEM_FOPS(vbox_fops);
179
180static const struct drm_driver driver = {
181	.driver_features =
182	    DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
183
184	.lastclose = drm_fb_helper_lastclose,
185
186	.fops = &vbox_fops,
187	.irq_handler = vbox_irq_handler,
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
198static int __init vbox_init(void)
199{
200#ifdef CONFIG_VGA_CONSOLE
201	if (vgacon_text_force() && vbox_modeset == -1)
202		return -EINVAL;
203#endif
204
205	if (vbox_modeset == 0)
206		return -EINVAL;
207
208	return pci_register_driver(&vbox_pci_driver);
209}
210
211static void __exit vbox_exit(void)
212{
213	pci_unregister_driver(&vbox_pci_driver);
214}
215
216module_init(vbox_init);
217module_exit(vbox_exit);
218
219MODULE_AUTHOR("Oracle Corporation");
220MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
221MODULE_DESCRIPTION(DRIVER_DESC);
222MODULE_LICENSE("GPL and additional rights");