1/*
  2 * Copyright 2012 Red Hat
  3 *
  4 * This file is subject to the terms and conditions of the GNU General
  5 * Public License version 2. See the file COPYING in the main
  6 * directory of this archive for more details.
  7 *
  8 * Authors: Matthew Garrett
  9 *          Dave Airlie
 10 */
 11#include <linux/module.h>
 12#include <linux/console.h>
 13#include <drm/drmP.h>
 14
 15#include "mgag200_drv.h"
 16
 17#include <drm/drm_pciids.h>
 18
 19/*
 20 * This is the generic driver code. This binds the driver to the drm core,
 21 * which then performs further device association and calls our graphics init
 22 * functions
 23 */
 24int mgag200_modeset = -1;
 25
 26MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
 27module_param_named(modeset, mgag200_modeset, int, 0400);
 28
 29static struct drm_driver driver;
 30
 31static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
 32	{ PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A },
 33	{ PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
 34	{ PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
 35	{ PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
 36	{ PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
 37	{ PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
 38	{0,}
 39};
 40
 41MODULE_DEVICE_TABLE(pci, pciidlist);
 42
 43static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
 44{
 45	struct apertures_struct *ap;
 46	bool primary = false;
 47
 48	ap = alloc_apertures(1);
 49	if (!ap)
 50		return;
 51
 52	ap->ranges[0].base = pci_resource_start(pdev, 0);
 53	ap->ranges[0].size = pci_resource_len(pdev, 0);
 54
 55#ifdef CONFIG_X86
 56	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 57#endif
 58	remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
 59	kfree(ap);
 60}
 61
 62
 63static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 64{
 65	mgag200_kick_out_firmware_fb(pdev);
 66
 67	return drm_get_pci_dev(pdev, ent, &driver);
 68}
 69
 70static void mga_pci_remove(struct pci_dev *pdev)
 71{
 72	struct drm_device *dev = pci_get_drvdata(pdev);
 73
 74	drm_put_dev(dev);
 75}
 76
 77static const struct file_operations mgag200_driver_fops = {
 78	.owner = THIS_MODULE,
 79	.open = drm_open,
 80	.release = drm_release,
 81	.unlocked_ioctl = drm_ioctl,
 82	.mmap = mgag200_mmap,
 83	.poll = drm_poll,
 84#ifdef CONFIG_COMPAT
 85	.compat_ioctl = drm_compat_ioctl,
 86#endif
 87	.read = drm_read,
 88};
 89
 90static struct drm_driver driver = {
 91	.driver_features = DRIVER_GEM | DRIVER_MODESET,
 92	.load = mgag200_driver_load,
 93	.unload = mgag200_driver_unload,
 94	.fops = &mgag200_driver_fops,
 95	.name = DRIVER_NAME,
 96	.desc = DRIVER_DESC,
 97	.date = DRIVER_DATE,
 98	.major = DRIVER_MAJOR,
 99	.minor = DRIVER_MINOR,
100	.patchlevel = DRIVER_PATCHLEVEL,
101
102	.gem_free_object = mgag200_gem_free_object,
103	.dumb_create = mgag200_dumb_create,
104	.dumb_map_offset = mgag200_dumb_mmap_offset,
105	.dumb_destroy = drm_gem_dumb_destroy,
106};
107
108static struct pci_driver mgag200_pci_driver = {
109	.name = DRIVER_NAME,
110	.id_table = pciidlist,
111	.probe = mga_pci_probe,
112	.remove = mga_pci_remove,
113};
114
115static int __init mgag200_init(void)
116{
117#ifdef CONFIG_VGA_CONSOLE
118	if (vgacon_text_force() && mgag200_modeset == -1)
119		return -EINVAL;
120#endif
121
122	if (mgag200_modeset == 0)
123		return -EINVAL;
124	return drm_pci_init(&driver, &mgag200_pci_driver);
125}
126
127static void __exit mgag200_exit(void)
128{
129	drm_pci_exit(&driver, &mgag200_pci_driver);
130}
131
132module_init(mgag200_init);
133module_exit(mgag200_exit);
134
135MODULE_AUTHOR(DRIVER_AUTHOR);
136MODULE_DESCRIPTION(DRIVER_DESC);
137MODULE_LICENSE("GPL");