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 #include <linux/pci.h>
30
31 #include <drm/drm_drv.h>
32 #include <drm/drm_file.h>
33 #include <drm/drm_pciids.h>
34 #include <drm/sis_drm.h>
35
36 #include "sis_drv.h"
37
38 static struct pci_device_id pciidlist[] = {
39 sisdrv_PCI_IDS
40 };
41
sis_driver_load(struct drm_device * dev,unsigned long chipset)42 static int sis_driver_load(struct drm_device *dev, unsigned long chipset)
43 {
44 struct pci_dev *pdev = to_pci_dev(dev->dev);
45 drm_sis_private_t *dev_priv;
46
47 pci_set_master(pdev);
48
49 dev_priv = kzalloc(sizeof(drm_sis_private_t), GFP_KERNEL);
50 if (dev_priv == NULL)
51 return -ENOMEM;
52
53 idr_init(&dev_priv->object_idr);
54 dev->dev_private = (void *)dev_priv;
55 dev_priv->chipset = chipset;
56
57 return 0;
58 }
59
sis_driver_unload(struct drm_device * dev)60 static void sis_driver_unload(struct drm_device *dev)
61 {
62 drm_sis_private_t *dev_priv = dev->dev_private;
63
64 idr_destroy(&dev_priv->object_idr);
65
66 kfree(dev_priv);
67 }
68
69 static const struct file_operations sis_driver_fops = {
70 .owner = THIS_MODULE,
71 .open = drm_open,
72 .release = drm_release,
73 .unlocked_ioctl = drm_ioctl,
74 .mmap = drm_legacy_mmap,
75 .poll = drm_poll,
76 .compat_ioctl = drm_compat_ioctl,
77 .llseek = noop_llseek,
78 };
79
sis_driver_open(struct drm_device * dev,struct drm_file * file)80 static int sis_driver_open(struct drm_device *dev, struct drm_file *file)
81 {
82 struct sis_file_private *file_priv;
83
84 DRM_DEBUG_DRIVER("\n");
85 file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
86 if (!file_priv)
87 return -ENOMEM;
88
89 file->driver_priv = file_priv;
90
91 INIT_LIST_HEAD(&file_priv->obj_list);
92
93 return 0;
94 }
95
sis_driver_postclose(struct drm_device * dev,struct drm_file * file)96 static void sis_driver_postclose(struct drm_device *dev, struct drm_file *file)
97 {
98 struct sis_file_private *file_priv = file->driver_priv;
99
100 kfree(file_priv);
101 }
102
103 static struct drm_driver driver = {
104 .driver_features = DRIVER_USE_AGP | DRIVER_LEGACY,
105 .load = sis_driver_load,
106 .unload = sis_driver_unload,
107 .open = sis_driver_open,
108 .preclose = sis_reclaim_buffers_locked,
109 .postclose = sis_driver_postclose,
110 .dma_quiescent = sis_idle,
111 .lastclose = sis_lastclose,
112 .ioctls = sis_ioctls,
113 .fops = &sis_driver_fops,
114 .name = DRIVER_NAME,
115 .desc = DRIVER_DESC,
116 .date = DRIVER_DATE,
117 .major = DRIVER_MAJOR,
118 .minor = DRIVER_MINOR,
119 .patchlevel = DRIVER_PATCHLEVEL,
120 };
121
122 static struct pci_driver sis_pci_driver = {
123 .name = DRIVER_NAME,
124 .id_table = pciidlist,
125 };
126
sis_init(void)127 static int __init sis_init(void)
128 {
129 driver.num_ioctls = sis_max_ioctl;
130 return drm_legacy_pci_init(&driver, &sis_pci_driver);
131 }
132
sis_exit(void)133 static void __exit sis_exit(void)
134 {
135 drm_legacy_pci_exit(&driver, &sis_pci_driver);
136 }
137
138 module_init(sis_init);
139 module_exit(sis_exit);
140
141 MODULE_AUTHOR(DRIVER_AUTHOR);
142 MODULE_DESCRIPTION(DRIVER_DESC);
143 MODULE_LICENSE("GPL and additional rights");
144