1 /* sis.c -- sis driver -*- linux-c -*-
2 *
3 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
4 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies or substantial portions of the
16 * Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 * DEALINGS IN THE SOFTWARE.
25 *
26 */
27
28 #include <linux/module.h>
29
30 #include <drm/drmP.h>
31 #include <drm/sis_drm.h>
32 #include "sis_drv.h"
33
34 #include <drm/drm_pciids.h>
35
36 static struct pci_device_id pciidlist[] = {
37 sisdrv_PCI_IDS
38 };
39
sis_driver_load(struct drm_device * dev,unsigned long chipset)40 static int sis_driver_load(struct drm_device *dev, unsigned long chipset)
41 {
42 drm_sis_private_t *dev_priv;
43
44 pci_set_master(dev->pdev);
45
46 dev_priv = kzalloc(sizeof(drm_sis_private_t), GFP_KERNEL);
47 if (dev_priv == NULL)
48 return -ENOMEM;
49
50 idr_init(&dev_priv->object_idr);
51 dev->dev_private = (void *)dev_priv;
52 dev_priv->chipset = chipset;
53
54 return 0;
55 }
56
sis_driver_unload(struct drm_device * dev)57 static void sis_driver_unload(struct drm_device *dev)
58 {
59 drm_sis_private_t *dev_priv = dev->dev_private;
60
61 idr_destroy(&dev_priv->object_idr);
62
63 kfree(dev_priv);
64 }
65
66 static const struct file_operations sis_driver_fops = {
67 .owner = THIS_MODULE,
68 .open = drm_open,
69 .release = drm_release,
70 .unlocked_ioctl = drm_ioctl,
71 .mmap = drm_legacy_mmap,
72 .poll = drm_poll,
73 .compat_ioctl = drm_compat_ioctl,
74 .llseek = noop_llseek,
75 };
76
sis_driver_open(struct drm_device * dev,struct drm_file * file)77 static int sis_driver_open(struct drm_device *dev, struct drm_file *file)
78 {
79 struct sis_file_private *file_priv;
80
81 DRM_DEBUG_DRIVER("\n");
82 file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
83 if (!file_priv)
84 return -ENOMEM;
85
86 file->driver_priv = file_priv;
87
88 INIT_LIST_HEAD(&file_priv->obj_list);
89
90 return 0;
91 }
92
sis_driver_postclose(struct drm_device * dev,struct drm_file * file)93 static void sis_driver_postclose(struct drm_device *dev, struct drm_file *file)
94 {
95 struct sis_file_private *file_priv = file->driver_priv;
96
97 kfree(file_priv);
98 }
99
100 static struct drm_driver driver = {
101 .driver_features = DRIVER_USE_AGP | DRIVER_LEGACY,
102 .load = sis_driver_load,
103 .unload = sis_driver_unload,
104 .open = sis_driver_open,
105 .preclose = sis_reclaim_buffers_locked,
106 .postclose = sis_driver_postclose,
107 .dma_quiescent = sis_idle,
108 .lastclose = sis_lastclose,
109 .ioctls = sis_ioctls,
110 .fops = &sis_driver_fops,
111 .name = DRIVER_NAME,
112 .desc = DRIVER_DESC,
113 .date = DRIVER_DATE,
114 .major = DRIVER_MAJOR,
115 .minor = DRIVER_MINOR,
116 .patchlevel = DRIVER_PATCHLEVEL,
117 };
118
119 static struct pci_driver sis_pci_driver = {
120 .name = DRIVER_NAME,
121 .id_table = pciidlist,
122 };
123
sis_init(void)124 static int __init sis_init(void)
125 {
126 driver.num_ioctls = sis_max_ioctl;
127 return drm_legacy_pci_init(&driver, &sis_pci_driver);
128 }
129
sis_exit(void)130 static void __exit sis_exit(void)
131 {
132 drm_legacy_pci_exit(&driver, &sis_pci_driver);
133 }
134
135 module_init(sis_init);
136 module_exit(sis_exit);
137
138 MODULE_AUTHOR(DRIVER_AUTHOR);
139 MODULE_DESCRIPTION(DRIVER_DESC);
140 MODULE_LICENSE("GPL and additional rights");
141
