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