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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(drm_device_t * dev, drm_via_init_t * init) | |
29 | { | |
30 | drm_via_private_t *dev_priv; | |
31 | ||
32 | DRM_DEBUG("%s\n", __FUNCTION__); | |
33 | ||
34 | dev_priv = drm_alloc(sizeof(drm_via_private_t), DRM_MEM_DRIVER); | |
35 | if (dev_priv == NULL) | |
36 | return -ENOMEM; | |
37 | ||
38 | memset(dev_priv, 0, sizeof(drm_via_private_t)); | |
39 | ||
40 | DRM_GETSAREA(); | |
41 | if (!dev_priv->sarea) { | |
42 | DRM_ERROR("could not find sarea!\n"); | |
43 | dev->dev_private = (void *)dev_priv; | |
44 | via_do_cleanup_map(dev); | |
45 | return -EINVAL; | |
46 | } | |
47 | ||
48 | dev_priv->fb = drm_core_findmap(dev, init->fb_offset); | |
49 | if (!dev_priv->fb) { | |
50 | DRM_ERROR("could not find framebuffer!\n"); | |
51 | dev->dev_private = (void *)dev_priv; | |
52 | via_do_cleanup_map(dev); | |
53 | return -EINVAL; | |
54 | } | |
55 | dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset); | |
56 | if (!dev_priv->mmio) { | |
57 | DRM_ERROR("could not find mmio region!\n"); | |
58 | dev->dev_private = (void *)dev_priv; | |
59 | via_do_cleanup_map(dev); | |
60 | return -EINVAL; | |
61 | } | |
62 | ||
63 | dev_priv->sarea_priv = | |
64 | (drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle + | |
65 | init->sarea_priv_offset); | |
66 | ||
67 | dev_priv->agpAddr = init->agpAddr; | |
68 | ||
69 | via_init_futex( dev_priv ); | |
70 | dev_priv->pro_group_a = (dev->pdev->device == 0x3118); | |
71 | ||
72 | dev->dev_private = (void *)dev_priv; | |
73 | return 0; | |
74 | } | |
75 | ||
76 | int via_do_cleanup_map(drm_device_t * dev) | |
77 | { | |
78 | if (dev->dev_private) { | |
79 | ||
80 | drm_via_private_t *dev_priv = dev->dev_private; | |
81 | ||
82 | via_dma_cleanup(dev); | |
83 | ||
84 | drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER); | |
85 | dev->dev_private = NULL; | |
86 | } | |
87 | ||
88 | return 0; | |
89 | } | |
90 | ||
91 | int via_map_init(DRM_IOCTL_ARGS) | |
92 | { | |
93 | DRM_DEVICE; | |
94 | drm_via_init_t init; | |
95 | ||
96 | DRM_DEBUG("%s\n", __FUNCTION__); | |
97 | ||
98 | DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t *) data, sizeof(init)); | |
99 | ||
100 | switch (init.func) { | |
101 | case VIA_INIT_MAP: | |
102 | return via_do_init_map(dev, &init); | |
103 | case VIA_CLEANUP_MAP: | |
104 | return via_do_cleanup_map(dev); | |
105 | } | |
106 | ||
107 | return -EINVAL; | |
108 | } | |
109 | ||
110 |