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 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 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, "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 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 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 109 static 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 } 125 126 static 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 } 136 137 static 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 } 143 144 static 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 } 150 151 static 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 } 157 158 static 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 167 168 static 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 }; 177 178 DEFINE_DRM_GEM_FOPS(vbox_fops); 179 180 static 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 }; 197 198 static 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 } 210 211 static void __exit vbox_exit(void) 212 { 213 pci_unregister_driver(&vbox_pci_driver); 214 } 215 216 module_init(vbox_init); 217 module_exit(vbox_exit); 218 219 MODULE_AUTHOR("Oracle Corporation"); 220 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); 221 MODULE_DESCRIPTION(DRIVER_DESC); 222 MODULE_LICENSE("GPL and additional rights"); 223