1/*
2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sub license,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24#include <drm/drmP.h>
25#include <drm/via_drm.h>
26#include "via_drv.h"
27
28static int via_do_init_map(struct drm_device *dev, drm_via_init_t *init)
29{
30	drm_via_private_t *dev_priv = dev->dev_private;
31
32	DRM_DEBUG("\n");
33
34	dev_priv->sarea = drm_legacy_getsarea(dev);
35	if (!dev_priv->sarea) {
36		DRM_ERROR("could not find sarea!\n");
37		dev->dev_private = (void *)dev_priv;
38		via_do_cleanup_map(dev);
39		return -EINVAL;
40	}
41
42	dev_priv->fb = drm_legacy_findmap(dev, init->fb_offset);
43	if (!dev_priv->fb) {
44		DRM_ERROR("could not find framebuffer!\n");
45		dev->dev_private = (void *)dev_priv;
46		via_do_cleanup_map(dev);
47		return -EINVAL;
48	}
49	dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset);
50	if (!dev_priv->mmio) {
51		DRM_ERROR("could not find mmio region!\n");
52		dev->dev_private = (void *)dev_priv;
53		via_do_cleanup_map(dev);
54		return -EINVAL;
55	}
56
57	dev_priv->sarea_priv =
58	    (drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle +
59				 init->sarea_priv_offset);
60
61	dev_priv->agpAddr = init->agpAddr;
62
63	via_init_futex(dev_priv);
64
65	via_init_dmablit(dev);
66
67	dev->dev_private = (void *)dev_priv;
68	return 0;
69}
70
71int via_do_cleanup_map(struct drm_device *dev)
72{
73	via_dma_cleanup(dev);
74
75	return 0;
76}
77
78int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
79{
80	drm_via_init_t *init = data;
81
82	DRM_DEBUG("\n");
83
84	switch (init->func) {
85	case VIA_INIT_MAP:
86		return via_do_init_map(dev, init);
87	case VIA_CLEANUP_MAP:
88		return via_do_cleanup_map(dev);
89	}
90
91	return -EINVAL;
92}
93
94int via_driver_load(struct drm_device *dev, unsigned long chipset)
95{
96	drm_via_private_t *dev_priv;
97	int ret = 0;
98
99	dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
100	if (dev_priv == NULL)
101		return -ENOMEM;
102
103	idr_init(&dev_priv->object_idr);
104	dev->dev_private = (void *)dev_priv;
105
106	dev_priv->chipset = chipset;
107
108	pci_set_master(dev->pdev);
109
110	ret = drm_vblank_init(dev, 1);
111	if (ret) {
112		kfree(dev_priv);
113		return ret;
114	}
115
116	return 0;
117}
118
119int via_driver_unload(struct drm_device *dev)
120{
121	drm_via_private_t *dev_priv = dev->dev_private;
122
123	idr_destroy(&dev_priv->object_idr);
124
125	kfree(dev_priv);
126
127	return 0;
128}
129