/*
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* Copyright (C) 2013-2017 Oracle Corporation
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* This file is based on ast_drv.c
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* Authors: Dave Airlie <airlied@redhat.com>
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* Michael Thayer <michael.thayer@oracle.com,
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* Hans de Goede <hdegoede@redhat.com>
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*/
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#include <linux/module.h>
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#include <linux/console.h>
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#include <linux/vt_kern.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include "vbox_drv.h"
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static int vbox_modeset = -1;
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MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
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module_param_named(modeset, vbox_modeset, int, 0400);
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static struct drm_driver driver;
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static const struct pci_device_id pciidlist[] = {
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{ 0x80ee, 0xbeef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0, 0, 0},
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};
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MODULE_DEVICE_TABLE(pci, pciidlist);
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static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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{
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struct drm_device *dev = NULL;
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int ret = 0;
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dev = drm_dev_alloc(&driver, &pdev->dev);
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if (IS_ERR(dev)) {
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ret = PTR_ERR(dev);
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goto err_drv_alloc;
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}
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ret = pci_enable_device(pdev);
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if (ret)
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goto err_pci_enable;
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dev->pdev = pdev;
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pci_set_drvdata(pdev, dev);
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ret = vbox_driver_load(dev);
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if (ret)
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goto err_vbox_driver_load;
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ret = drm_dev_register(dev, 0);
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if (ret)
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goto err_drv_dev_register;
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return ret;
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err_drv_dev_register:
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vbox_driver_unload(dev);
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err_vbox_driver_load:
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pci_disable_device(pdev);
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err_pci_enable:
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drm_dev_put(dev);
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err_drv_alloc:
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return ret;
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}
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static void vbox_pci_remove(struct pci_dev *pdev)
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{
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struct drm_device *dev = pci_get_drvdata(pdev);
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drm_dev_unregister(dev);
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vbox_driver_unload(dev);
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drm_dev_put(dev);
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}
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static int vbox_drm_freeze(struct drm_device *dev)
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{
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struct vbox_private *vbox = dev->dev_private;
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drm_kms_helper_poll_disable(dev);
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pci_save_state(dev->pdev);
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drm_fb_helper_set_suspend_unlocked(&vbox->fbdev->helper, true);
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return 0;
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}
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static int vbox_drm_thaw(struct drm_device *dev)
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{
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struct vbox_private *vbox = dev->dev_private;
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drm_mode_config_reset(dev);
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drm_helper_resume_force_mode(dev);
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drm_fb_helper_set_suspend_unlocked(&vbox->fbdev->helper, false);
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return 0;
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}
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static int vbox_drm_resume(struct drm_device *dev)
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{
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int ret;
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if (pci_enable_device(dev->pdev))
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return -EIO;
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ret = vbox_drm_thaw(dev);
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if (ret)
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return ret;
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drm_kms_helper_poll_enable(dev);
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return 0;
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}
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static int vbox_pm_suspend(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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struct drm_device *ddev = pci_get_drvdata(pdev);
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int error;
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error = vbox_drm_freeze(ddev);
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if (error)
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return error;
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pci_disable_device(pdev);
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pci_set_power_state(pdev, PCI_D3hot);
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return 0;
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}
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static int vbox_pm_resume(struct device *dev)
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{
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struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
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return vbox_drm_resume(ddev);
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}
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static int vbox_pm_freeze(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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struct drm_device *ddev = pci_get_drvdata(pdev);
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if (!ddev || !ddev->dev_private)
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return -ENODEV;
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return vbox_drm_freeze(ddev);
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}
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static int vbox_pm_thaw(struct device *dev)
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{
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struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
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return vbox_drm_thaw(ddev);
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}
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static int vbox_pm_poweroff(struct device *dev)
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{
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struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
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return vbox_drm_freeze(ddev);
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}
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static const struct dev_pm_ops vbox_pm_ops = {
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.suspend = vbox_pm_suspend,
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.resume = vbox_pm_resume,
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.freeze = vbox_pm_freeze,
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.thaw = vbox_pm_thaw,
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.poweroff = vbox_pm_poweroff,
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.restore = vbox_pm_resume,
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};
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static struct pci_driver vbox_pci_driver = {
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.name = DRIVER_NAME,
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.id_table = pciidlist,
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.probe = vbox_pci_probe,
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.remove = vbox_pci_remove,
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.driver.pm = &vbox_pm_ops,
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};
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static const struct file_operations vbox_fops = {
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.owner = THIS_MODULE,
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.open = drm_open,
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.release = drm_release,
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.unlocked_ioctl = drm_ioctl,
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.mmap = vbox_mmap,
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.poll = drm_poll,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = drm_compat_ioctl,
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#endif
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.read = drm_read,
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};
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static int vbox_master_set(struct drm_device *dev,
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struct drm_file *file_priv, bool from_open)
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{
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struct vbox_private *vbox = dev->dev_private;
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/*
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* We do not yet know whether the new owner can handle hotplug, so we
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* do not advertise dynamic modes on the first query and send a
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* tentative hotplug notification after that to see if they query again.
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*/
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vbox->initial_mode_queried = false;
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mutex_lock(&vbox->hw_mutex);
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/*
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* Disable VBVA when someone releases master in case the next person
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* tries tries to do VESA.
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*/
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/** @todo work out if anyone is likely to and whether it will work. */
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/*
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* Update: we also disable it because if the new master does not do
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* dirty rectangle reporting (e.g. old versions of Plymouth) then at
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* least the first screen will still be updated. We enable it as soon
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* as we receive a dirty rectangle report.
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*/
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vbox_disable_accel(vbox);
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mutex_unlock(&vbox->hw_mutex);
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return 0;
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}
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static void vbox_master_drop(struct drm_device *dev, struct drm_file *file_priv)
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{
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struct vbox_private *vbox = dev->dev_private;
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/* See vbox_master_set() */
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vbox->initial_mode_queried = false;
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mutex_lock(&vbox->hw_mutex);
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vbox_disable_accel(vbox);
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mutex_unlock(&vbox->hw_mutex);
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}
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static struct drm_driver driver = {
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.driver_features =
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DRIVER_MODESET | DRIVER_GEM | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
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DRIVER_PRIME,
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.dev_priv_size = 0,
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.lastclose = vbox_driver_lastclose,
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.master_set = vbox_master_set,
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.master_drop = vbox_master_drop,
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.fops = &vbox_fops,
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.irq_handler = vbox_irq_handler,
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.name = DRIVER_NAME,
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.desc = DRIVER_DESC,
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.date = DRIVER_DATE,
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.major = DRIVER_MAJOR,
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.minor = DRIVER_MINOR,
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.patchlevel = DRIVER_PATCHLEVEL,
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.gem_free_object_unlocked = vbox_gem_free_object,
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.dumb_create = vbox_dumb_create,
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.dumb_map_offset = vbox_dumb_mmap_offset,
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.dumb_destroy = drm_gem_dumb_destroy,
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.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
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.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
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.gem_prime_export = drm_gem_prime_export,
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.gem_prime_import = drm_gem_prime_import,
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.gem_prime_pin = vbox_gem_prime_pin,
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.gem_prime_unpin = vbox_gem_prime_unpin,
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.gem_prime_get_sg_table = vbox_gem_prime_get_sg_table,
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.gem_prime_import_sg_table = vbox_gem_prime_import_sg_table,
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.gem_prime_vmap = vbox_gem_prime_vmap,
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.gem_prime_vunmap = vbox_gem_prime_vunmap,
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.gem_prime_mmap = vbox_gem_prime_mmap,
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};
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static int __init vbox_init(void)
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{
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#ifdef CONFIG_VGA_CONSOLE
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if (vgacon_text_force() && vbox_modeset == -1)
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return -EINVAL;
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#endif
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if (vbox_modeset == 0)
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return -EINVAL;
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return pci_register_driver(&vbox_pci_driver);
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}
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static void __exit vbox_exit(void)
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{
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pci_unregister_driver(&vbox_pci_driver);
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}
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module_init(vbox_init);
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module_exit(vbox_exit);
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MODULE_AUTHOR("Oracle Corporation");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL and additional rights");
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