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 const struct pci_device_id 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	{ PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 },
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	if (!ap)
51		return;
52
53	ap->ranges[0].base = pci_resource_start(pdev, 0);
54	ap->ranges[0].size = pci_resource_len(pdev, 0);
55
56#ifdef CONFIG_X86
57	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
58#endif
59	remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
60	kfree(ap);
61}
62
63
64static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
65{
66	mgag200_kick_out_firmware_fb(pdev);
67
68	return drm_get_pci_dev(pdev, ent, &driver);
69}
70
71static void mga_pci_remove(struct pci_dev *pdev)
72{
73	struct drm_device *dev = pci_get_drvdata(pdev);
74
75	drm_put_dev(dev);
76}
77
78static const struct file_operations mgag200_driver_fops = {
79	.owner = THIS_MODULE,
80	.open = drm_open,
81	.release = drm_release,
82	.unlocked_ioctl = drm_ioctl,
83	.mmap = mgag200_mmap,
84	.poll = drm_poll,
85#ifdef CONFIG_COMPAT
86	.compat_ioctl = drm_compat_ioctl,
87#endif
88	.read = drm_read,
89};
90
91static struct drm_driver driver = {
92	.driver_features = DRIVER_GEM | DRIVER_MODESET,
93	.load = mgag200_driver_load,
94	.unload = mgag200_driver_unload,
95	.set_busid = drm_pci_set_busid,
96	.fops = &mgag200_driver_fops,
97	.name = DRIVER_NAME,
98	.desc = DRIVER_DESC,
99	.date = DRIVER_DATE,
100	.major = DRIVER_MAJOR,
101	.minor = DRIVER_MINOR,
102	.patchlevel = DRIVER_PATCHLEVEL,
103
104	.gem_free_object = mgag200_gem_free_object,
105	.dumb_create = mgag200_dumb_create,
106	.dumb_map_offset = mgag200_dumb_mmap_offset,
107	.dumb_destroy = drm_gem_dumb_destroy,
108};
109
110static struct pci_driver mgag200_pci_driver = {
111	.name = DRIVER_NAME,
112	.id_table = pciidlist,
113	.probe = mga_pci_probe,
114	.remove = mga_pci_remove,
115};
116
117static int __init mgag200_init(void)
118{
119#ifdef CONFIG_VGA_CONSOLE
120	if (vgacon_text_force() && mgag200_modeset == -1)
121		return -EINVAL;
122#endif
123
124	if (mgag200_modeset == 0)
125		return -EINVAL;
126	return drm_pci_init(&driver, &mgag200_pci_driver);
127}
128
129static void __exit mgag200_exit(void)
130{
131	drm_pci_exit(&driver, &mgag200_pci_driver);
132}
133
134module_init(mgag200_init);
135module_exit(mgag200_exit);
136
137MODULE_AUTHOR(DRIVER_AUTHOR);
138MODULE_DESCRIPTION(DRIVER_DESC);
139MODULE_LICENSE("GPL");
140