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 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
 66static 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
 77static 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
 93static 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
100static 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
119static struct pci_driver sis_pci_driver = {
120	.name = DRIVER_NAME,
121	.id_table = pciidlist,
122};
123
124static 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
130static void __exit sis_exit(void)
131{
132	drm_legacy_pci_exit(&driver, &sis_pci_driver);
133}
134
135module_init(sis_init);
136module_exit(sis_exit);
137
138MODULE_AUTHOR(DRIVER_AUTHOR);
139MODULE_DESCRIPTION(DRIVER_DESC);
140MODULE_LICENSE("GPL and additional rights");