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 "drmP.h"
25#include "via_drm.h"
26#include "via_drv.h"
27
28static int via_do_init_map(drm_device_t * dev, drm_via_init_t * init)
29{
30	drm_via_private_t *dev_priv = dev->dev_private;
31
32	DRM_DEBUG("%s\n", __FUNCTION__);
33
34	DRM_GETSAREA();
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_core_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_core_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(drm_device_t * dev)
72{
73	via_dma_cleanup(dev);
74
75	return 0;
76}
77
78int via_map_init(DRM_IOCTL_ARGS)
79{
80	DRM_DEVICE;
81	drm_via_init_t init;
82
83	DRM_DEBUG("%s\n", __FUNCTION__);
84
85	DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t __user *) data,
86				 sizeof(init));
87
88	switch (init.func) {
89	case VIA_INIT_MAP:
90		return via_do_init_map(dev, &init);
91	case VIA_CLEANUP_MAP:
92		return via_do_cleanup_map(dev);
93	}
94
95	return -EINVAL;
96}
97
98int via_driver_load(drm_device_t *dev, unsigned long chipset)
99{
100	drm_via_private_t *dev_priv;
101	int ret = 0;
102
103	dev_priv = drm_calloc(1, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
104	if (dev_priv == NULL)
105		return DRM_ERR(ENOMEM);
106
107	dev->dev_private = (void *)dev_priv;
108
109	dev_priv->chipset = chipset;
110
111	ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
112	if (ret) {
113		drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
114	}
115	return ret;
116}
117
118int via_driver_unload(drm_device_t *dev)
119{
120	drm_via_private_t *dev_priv = dev->dev_private;
121
122	drm_sman_takedown(&dev_priv->sman);
123
124	drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
125
126	return 0;
127}
128