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, &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(vbox))
 54		return PTR_ERR(vbox);
 55
 56	pci_set_drvdata(pdev, 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(&vbox->ddev, 0);
 80	if (ret)
 81		goto err_irq_fini;
 82
 83	drm_fbdev_generic_setup(&vbox->ddev, 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(&vbox->ddev);
101	drm_atomic_helper_shutdown(&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(&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(&vbox->ddev);
121	if (error)
122		return error;
123
124	pci_save_state(pdev);
125	pci_disable_device(pdev);
126	pci_set_power_state(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(pdev))
137		return -EIO;
138
139	return drm_mode_config_helper_resume(&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(&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(&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(&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 | DRIVER_CURSOR_HOTSPOT,
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");