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
28 static 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_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_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
71 int via_do_cleanup_map(struct drm_device * dev)
72 {
73 via_dma_cleanup(dev);
74
75 return 0;
76 }
77
78 int 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
94 int 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 = drm_calloc(1, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
100 if (dev_priv == NULL)
101 return -ENOMEM;
102
103 dev->dev_private = (void *)dev_priv;
104
105 dev_priv->chipset = chipset;
106
107 ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
108 if (ret) {
109 drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
110 }
111 return ret;
112 }
113
114 int via_driver_unload(struct drm_device *dev)
115 {
116 drm_via_private_t *dev_priv = dev->dev_private;
117
118 drm_sman_takedown(&dev_priv->sman);
119
120 drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
121
122 return 0;
123 }
124
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