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 "drmP.h"
 14#include "drm.h"
 15
 16#include "mgag200_drv.h"
 17
 18#include "drm_pciids.h"
 19
 20/*
 21 * This is the generic driver code. This binds the driver to the drm core,
 22 * which then performs further device association and calls our graphics init
 23 * functions
 24 */
 25int mgag200_modeset = -1;
 26
 27MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
 28module_param_named(modeset, mgag200_modeset, int, 0400);
 29
 30static struct drm_driver driver;
 31
 32static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
 33	{ PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A },
 34	{ PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
 35	{ PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
 36	{ PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
 37	{ PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
 38	{ PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
 39	{0,}
 40};
 41
 42MODULE_DEVICE_TABLE(pci, pciidlist);
 43
 44static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
 45{
 46	struct apertures_struct *ap;
 47	bool primary = false;
 48
 49	ap = alloc_apertures(1);
 50	ap->ranges[0].base = pci_resource_start(pdev, 0);
 51	ap->ranges[0].size = pci_resource_len(pdev, 0);
 52
 53#ifdef CONFIG_X86
 54	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 55#endif
 56	remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
 57	kfree(ap);
 58}
 59
 60
 61static int __devinit
 62mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 63{
 64	mgag200_kick_out_firmware_fb(pdev);
 65
 66	return drm_get_pci_dev(pdev, ent, &driver);
 67}
 68
 69static void mga_pci_remove(struct pci_dev *pdev)
 70{
 71	struct drm_device *dev = pci_get_drvdata(pdev);
 72
 73	drm_put_dev(dev);
 74}
 75
 76static const struct file_operations mgag200_driver_fops = {
 77	.owner = THIS_MODULE,
 78	.open = drm_open,
 79	.release = drm_release,
 80	.unlocked_ioctl = drm_ioctl,
 81	.mmap = mgag200_mmap,
 82	.poll = drm_poll,
 83	.fasync = drm_fasync,
 84	.read = drm_read,
 85};
 86
 87static struct drm_driver driver = {
 88	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_USE_MTRR,
 89	.load = mgag200_driver_load,
 90	.unload = mgag200_driver_unload,
 91	.fops = &mgag200_driver_fops,
 92	.name = DRIVER_NAME,
 93	.desc = DRIVER_DESC,
 94	.date = DRIVER_DATE,
 95	.major = DRIVER_MAJOR,
 96	.minor = DRIVER_MINOR,
 97	.patchlevel = DRIVER_PATCHLEVEL,
 98
 99	.gem_init_object = mgag200_gem_init_object,
100	.gem_free_object = mgag200_gem_free_object,
101	.dumb_create = mgag200_dumb_create,
102	.dumb_map_offset = mgag200_dumb_mmap_offset,
103	.dumb_destroy = mgag200_dumb_destroy,
104};
105
106static struct pci_driver mgag200_pci_driver = {
107	.name = DRIVER_NAME,
108	.id_table = pciidlist,
109	.probe = mga_pci_probe,
110	.remove = mga_pci_remove,
111};
112
113static int __init mgag200_init(void)
114{
115#ifdef CONFIG_VGA_CONSOLE
116	if (vgacon_text_force() && mgag200_modeset == -1)
117		return -EINVAL;
118#endif
119
120	if (mgag200_modeset == 0)
121		return -EINVAL;
122	return drm_pci_init(&driver, &mgag200_pci_driver);
123}
124
125static void __exit mgag200_exit(void)
126{
127	drm_pci_exit(&driver, &mgag200_pci_driver);
128}
129
130module_init(mgag200_init);
131module_exit(mgag200_exit);
132
133MODULE_AUTHOR(DRIVER_AUTHOR);
134MODULE_DESCRIPTION(DRIVER_DESC);
135MODULE_LICENSE("GPL");