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
 36static struct pci_device_id pciidlist[] = {
 37	sisdrv_PCI_IDS
 38};
 39
 40static 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
 57static int 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	return 0;
 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#ifdef CONFIG_COMPAT
 76	.compat_ioctl = drm_compat_ioctl,
 77#endif
 78	.llseek = noop_llseek,
 79};
 80
 81static int sis_driver_open(struct drm_device *dev, struct drm_file *file)
 82{
 83	struct sis_file_private *file_priv;
 84
 85	DRM_DEBUG_DRIVER("\n");
 86	file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
 87	if (!file_priv)
 88		return -ENOMEM;
 89
 90	file->driver_priv = file_priv;
 91
 92	INIT_LIST_HEAD(&file_priv->obj_list);
 93
 94	return 0;
 95}
 96
 97static void sis_driver_postclose(struct drm_device *dev, struct drm_file *file)
 98{
 99	struct sis_file_private *file_priv = file->driver_priv;
100
101	kfree(file_priv);
102}
103
104static struct drm_driver driver = {
105	.driver_features = DRIVER_USE_AGP,
106	.load = sis_driver_load,
107	.unload = sis_driver_unload,
108	.open = sis_driver_open,
109	.preclose = sis_reclaim_buffers_locked,
110	.postclose = sis_driver_postclose,
111	.set_busid = drm_pci_set_busid,
112	.dma_quiescent = sis_idle,
113	.lastclose = sis_lastclose,
114	.ioctls = sis_ioctls,
115	.fops = &sis_driver_fops,
116	.name = DRIVER_NAME,
117	.desc = DRIVER_DESC,
118	.date = DRIVER_DATE,
119	.major = DRIVER_MAJOR,
120	.minor = DRIVER_MINOR,
121	.patchlevel = DRIVER_PATCHLEVEL,
122};
123
124static struct pci_driver sis_pci_driver = {
125	.name = DRIVER_NAME,
126	.id_table = pciidlist,
127};
128
129static int __init sis_init(void)
130{
131	driver.num_ioctls = sis_max_ioctl;
132	return drm_pci_init(&driver, &sis_pci_driver);
133}
134
135static void __exit sis_exit(void)
136{
137	drm_pci_exit(&driver, &sis_pci_driver);
138}
139
140module_init(sis_init);
141module_exit(sis_exit);
142
143MODULE_AUTHOR(DRIVER_AUTHOR);
144MODULE_DESCRIPTION(DRIVER_DESC);
145MODULE_LICENSE("GPL and additional rights");