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
25#include <linux/pci.h>
26
27#include <drm/drm_device.h>
28#include <drm/drm_vblank.h>
29#include <drm/via_drm.h>
30
31#include "via_drv.h"
32
33static int via_do_init_map(struct drm_device *dev, drm_via_init_t *init)
34{
35	drm_via_private_t *dev_priv = dev->dev_private;
36
37	DRM_DEBUG("\n");
38
39	dev_priv->sarea = drm_legacy_getsarea(dev);
40	if (!dev_priv->sarea) {
41		DRM_ERROR("could not find sarea!\n");
42		dev->dev_private = (void *)dev_priv;
43		via_do_cleanup_map(dev);
44		return -EINVAL;
45	}
46
47	dev_priv->fb = drm_legacy_findmap(dev, init->fb_offset);
48	if (!dev_priv->fb) {
49		DRM_ERROR("could not find framebuffer!\n");
50		dev->dev_private = (void *)dev_priv;
51		via_do_cleanup_map(dev);
52		return -EINVAL;
53	}
54	dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset);
55	if (!dev_priv->mmio) {
56		DRM_ERROR("could not find mmio region!\n");
57		dev->dev_private = (void *)dev_priv;
58		via_do_cleanup_map(dev);
59		return -EINVAL;
60	}
61
62	dev_priv->sarea_priv =
63	    (drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle +
64				 init->sarea_priv_offset);
65
66	dev_priv->agpAddr = init->agpAddr;
67
68	via_init_futex(dev_priv);
69
70	via_init_dmablit(dev);
71
72	dev->dev_private = (void *)dev_priv;
73	return 0;
74}
75
76int via_do_cleanup_map(struct drm_device *dev)
77{
78	via_dma_cleanup(dev);
79
80	return 0;
81}
82
83int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
84{
85	drm_via_init_t *init = data;
86
87	DRM_DEBUG("\n");
88
89	switch (init->func) {
90	case VIA_INIT_MAP:
91		return via_do_init_map(dev, init);
92	case VIA_CLEANUP_MAP:
93		return via_do_cleanup_map(dev);
94	}
95
96	return -EINVAL;
97}
98
99int via_driver_load(struct drm_device *dev, unsigned long chipset)
100{
101	drm_via_private_t *dev_priv;
102	int ret = 0;
103
104	dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
105	if (dev_priv == NULL)
106		return -ENOMEM;
107
108	idr_init(&dev_priv->object_idr);
109	dev->dev_private = (void *)dev_priv;
110
111	dev_priv->chipset = chipset;
112
113	pci_set_master(dev->pdev);
114
115	ret = drm_vblank_init(dev, 1);
116	if (ret) {
117		kfree(dev_priv);
118		return ret;
119	}
120
121	return 0;
122}
123
124void via_driver_unload(struct drm_device *dev)
125{
126	drm_via_private_t *dev_priv = dev->dev_private;
127
128	idr_destroy(&dev_priv->object_idr);
129
130	kfree(dev_priv);
131}
132