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 */
24 int mgag200_modeset = -1;
25
26 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
27 module_param_named(modeset, mgag200_modeset, int, 0400);
28
29 static struct drm_driver driver;
30
31 static 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 { PCI_VENDOR_ID_MATROX, 0x538, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH3 },
40 {0,}
41 };
42
43 MODULE_DEVICE_TABLE(pci, pciidlist);
44
mgag200_kick_out_firmware_fb(struct pci_dev * pdev)45 static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev)
46 {
47 struct apertures_struct *ap;
48 bool primary = false;
49
50 ap = alloc_apertures(1);
51 if (!ap)
52 return;
53
54 ap->ranges[0].base = pci_resource_start(pdev, 0);
55 ap->ranges[0].size = pci_resource_len(pdev, 0);
56
57 #ifdef CONFIG_X86
58 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
59 #endif
60 drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary);
61 kfree(ap);
62 }
63
64
mga_pci_probe(struct pci_dev * pdev,const struct pci_device_id * ent)65 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
66 {
67 mgag200_kick_out_firmware_fb(pdev);
68
69 return drm_get_pci_dev(pdev, ent, &driver);
70 }
71
mga_pci_remove(struct pci_dev * pdev)72 static void mga_pci_remove(struct pci_dev *pdev)
73 {
74 struct drm_device *dev = pci_get_drvdata(pdev);
75
76 drm_put_dev(dev);
77 }
78
79 static const struct file_operations mgag200_driver_fops = {
80 .owner = THIS_MODULE,
81 .open = drm_open,
82 .release = drm_release,
83 .unlocked_ioctl = drm_ioctl,
84 .mmap = mgag200_mmap,
85 .poll = drm_poll,
86 .compat_ioctl = drm_compat_ioctl,
87 .read = drm_read,
88 };
89
90 static 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_unlocked = mgag200_gem_free_object,
103 .dumb_create = mgag200_dumb_create,
104 .dumb_map_offset = mgag200_dumb_mmap_offset,
105 };
106
107 static struct pci_driver mgag200_pci_driver = {
108 .name = DRIVER_NAME,
109 .id_table = pciidlist,
110 .probe = mga_pci_probe,
111 .remove = mga_pci_remove,
112 };
113
mgag200_init(void)114 static int __init mgag200_init(void)
115 {
116 if (vgacon_text_force() && mgag200_modeset == -1)
117 return -EINVAL;
118
119 if (mgag200_modeset == 0)
120 return -EINVAL;
121
122 return pci_register_driver(&mgag200_pci_driver);
123 }
124
mgag200_exit(void)125 static void __exit mgag200_exit(void)
126 {
127 pci_unregister_driver(&mgag200_pci_driver);
128 }
129
130 module_init(mgag200_init);
131 module_exit(mgag200_exit);
132
133 MODULE_AUTHOR(DRIVER_AUTHOR);
134 MODULE_DESCRIPTION(DRIVER_DESC);
135 MODULE_LICENSE("GPL");
136
