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// SPDX-License-Identifier: MIT
/*
* Copyright (C) 2013-2017 Oracle Corporation
* This file is based on ast_drv.c
* Copyright 2012 Red Hat Inc.
* Authors: Dave Airlie <airlied@redhat.com>
* Michael Thayer <michael.thayer@oracle.com,
* Hans de Goede <hdegoede@redhat.com>
*/
#include <linux/console.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/vt_kern.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
#include <drm/drm_ioctl.h>
#include "vbox_drv.h"
static int vbox_modeset = -1;
MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, vbox_modeset, int, 0400);
static struct drm_driver driver;
static const struct pci_device_id pciidlist[] = {
{ PCI_DEVICE(0x80ee, 0xbeef) },
{ }
};
MODULE_DEVICE_TABLE(pci, pciidlist);
static struct drm_fb_helper_funcs vbox_fb_helper_funcs = {
.fb_probe = vboxfb_create,
};
static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct vbox_private *vbox;
int ret = 0;
if (!vbox_check_supported(VBE_DISPI_ID_HGSMI))
return -ENODEV;
vbox = kzalloc(sizeof(*vbox), GFP_KERNEL);
if (!vbox)
return -ENOMEM;
ret = drm_dev_init(&vbox->ddev, &driver, &pdev->dev);
if (ret) {
kfree(vbox);
return ret;
}
vbox->ddev.pdev = pdev;
vbox->ddev.dev_private = vbox;
pci_set_drvdata(pdev, vbox);
mutex_init(&vbox->hw_mutex);
ret = pci_enable_device(pdev);
if (ret)
goto err_dev_put;
ret = vbox_hw_init(vbox);
if (ret)
goto err_pci_disable;
ret = vbox_mm_init(vbox);
if (ret)
goto err_hw_fini;
ret = vbox_mode_init(vbox);
if (ret)
goto err_mm_fini;
ret = vbox_irq_init(vbox);
if (ret)
goto err_mode_fini;
ret = drm_fb_helper_fbdev_setup(&vbox->ddev, &vbox->fb_helper,
&vbox_fb_helper_funcs, 32,
vbox->num_crtcs);
if (ret)
goto err_irq_fini;
ret = drm_dev_register(&vbox->ddev, 0);
if (ret)
goto err_fbdev_fini;
return 0;
err_fbdev_fini:
vbox_fbdev_fini(vbox);
err_irq_fini:
vbox_irq_fini(vbox);
err_mode_fini:
vbox_mode_fini(vbox);
err_mm_fini:
vbox_mm_fini(vbox);
err_hw_fini:
vbox_hw_fini(vbox);
err_pci_disable:
pci_disable_device(pdev);
err_dev_put:
drm_dev_put(&vbox->ddev);
return ret;
}
static void vbox_pci_remove(struct pci_dev *pdev)
{
struct vbox_private *vbox = pci_get_drvdata(pdev);
drm_dev_unregister(&vbox->ddev);
vbox_fbdev_fini(vbox);
vbox_irq_fini(vbox);
vbox_mode_fini(vbox);
vbox_mm_fini(vbox);
vbox_hw_fini(vbox);
drm_dev_put(&vbox->ddev);
}
#ifdef CONFIG_PM_SLEEP
static int vbox_pm_suspend(struct device *dev)
{
struct vbox_private *vbox = dev_get_drvdata(dev);
int error;
error = drm_mode_config_helper_suspend(&vbox->ddev);
if (error)
return error;
pci_save_state(vbox->ddev.pdev);
pci_disable_device(vbox->ddev.pdev);
pci_set_power_state(vbox->ddev.pdev, PCI_D3hot);
return 0;
}
static int vbox_pm_resume(struct device *dev)
{
struct vbox_private *vbox = dev_get_drvdata(dev);
if (pci_enable_device(vbox->ddev.pdev))
return -EIO;
return drm_mode_config_helper_resume(&vbox->ddev);
}
static int vbox_pm_freeze(struct device *dev)
{
struct vbox_private *vbox = dev_get_drvdata(dev);
return drm_mode_config_helper_suspend(&vbox->ddev);
}
static int vbox_pm_thaw(struct device *dev)
{
struct vbox_private *vbox = dev_get_drvdata(dev);
return drm_mode_config_helper_resume(&vbox->ddev);
}
static int vbox_pm_poweroff(struct device *dev)
{
struct vbox_private *vbox = dev_get_drvdata(dev);
return drm_mode_config_helper_suspend(&vbox->ddev);
}
static const struct dev_pm_ops vbox_pm_ops = {
.suspend = vbox_pm_suspend,
.resume = vbox_pm_resume,
.freeze = vbox_pm_freeze,
.thaw = vbox_pm_thaw,
.poweroff = vbox_pm_poweroff,
.restore = vbox_pm_resume,
};
#endif
static struct pci_driver vbox_pci_driver = {
.name = DRIVER_NAME,
.id_table = pciidlist,
.probe = vbox_pci_probe,
.remove = vbox_pci_remove,
#ifdef CONFIG_PM_SLEEP
.driver.pm = &vbox_pm_ops,
#endif
};
static const struct file_operations vbox_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
.compat_ioctl = drm_compat_ioctl,
.mmap = vbox_mmap,
.poll = drm_poll,
.read = drm_read,
};
static struct drm_driver driver = {
.driver_features =
DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC,
.lastclose = drm_fb_helper_lastclose,
.fops = &vbox_fops,
.irq_handler = vbox_irq_handler,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
.gem_free_object_unlocked = vbox_gem_free_object,
.dumb_create = vbox_dumb_create,
.dumb_map_offset = vbox_dumb_mmap_offset,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_export = drm_gem_prime_export,
.gem_prime_import = drm_gem_prime_import,
.gem_prime_pin = vbox_gem_prime_pin,
.gem_prime_unpin = vbox_gem_prime_unpin,
.gem_prime_get_sg_table = vbox_gem_prime_get_sg_table,
.gem_prime_import_sg_table = vbox_gem_prime_import_sg_table,
.gem_prime_vmap = vbox_gem_prime_vmap,
.gem_prime_vunmap = vbox_gem_prime_vunmap,
.gem_prime_mmap = vbox_gem_prime_mmap,
};
static int __init vbox_init(void)
{
#ifdef CONFIG_VGA_CONSOLE
if (vgacon_text_force() && vbox_modeset == -1)
return -EINVAL;
#endif
if (vbox_modeset == 0)
return -EINVAL;
return pci_register_driver(&vbox_pci_driver);
}
static void __exit vbox_exit(void)
{
pci_unregister_driver(&vbox_pci_driver);
}
module_init(vbox_init);
module_exit(vbox_exit);
MODULE_AUTHOR("Oracle Corporation");
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");
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