Commit | Line | Data |
---|---|---|
1c248b7d ID |
1 | /* exynos_drm_core.c |
2 | * | |
3 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. | |
4 | * Author: | |
5 | * Inki Dae <inki.dae@samsung.com> | |
6 | * Joonyoung Shim <jy0922.shim@samsung.com> | |
7 | * Seung-Woo Kim <sw0312.kim@samsung.com> | |
8 | * | |
9 | * Permission is hereby granted, free of charge, to any person obtaining a | |
10 | * copy of this software and associated documentation files (the "Software"), | |
11 | * to deal in the Software without restriction, including without limitation | |
12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
13 | * and/or sell copies of the Software, and to permit persons to whom the | |
14 | * Software is furnished to do so, subject to the following conditions: | |
15 | * | |
16 | * The above copyright notice and this permission notice (including the next | |
17 | * paragraph) shall be included in all copies or substantial portions of the | |
18 | * Software. | |
19 | * | |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
23 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
24 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
25 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
26 | * OTHER DEALINGS IN THE SOFTWARE. | |
27 | */ | |
28 | ||
29 | #include "drmP.h" | |
30 | #include "exynos_drm_drv.h" | |
31 | #include "exynos_drm_encoder.h" | |
32 | #include "exynos_drm_connector.h" | |
33 | #include "exynos_drm_fbdev.h" | |
34 | ||
1c248b7d ID |
35 | static LIST_HEAD(exynos_drm_subdrv_list); |
36 | static struct drm_device *drm_dev; | |
37 | ||
38 | static int exynos_drm_subdrv_probe(struct drm_device *dev, | |
39 | struct exynos_drm_subdrv *subdrv) | |
40 | { | |
41 | struct drm_encoder *encoder; | |
42 | struct drm_connector *connector; | |
43 | ||
44 | DRM_DEBUG_DRIVER("%s\n", __FILE__); | |
45 | ||
46 | if (subdrv->probe) { | |
47 | int ret; | |
48 | ||
49 | /* | |
50 | * this probe callback would be called by sub driver | |
51 | * after setting of all resources to this sub driver, | |
52 | * such as clock, irq and register map are done or by load() | |
53 | * of exynos drm driver. | |
54 | * | |
55 | * P.S. note that this driver is considered for modularization. | |
56 | */ | |
41c24346 | 57 | ret = subdrv->probe(dev, subdrv->manager.dev); |
1c248b7d ID |
58 | if (ret) |
59 | return ret; | |
60 | } | |
61 | ||
62 | /* create and initialize a encoder for this sub driver. */ | |
63 | encoder = exynos_drm_encoder_create(dev, &subdrv->manager, | |
64 | (1 << MAX_CRTC) - 1); | |
65 | if (!encoder) { | |
66 | DRM_ERROR("failed to create encoder\n"); | |
67 | return -EFAULT; | |
68 | } | |
69 | ||
70 | /* | |
71 | * create and initialize a connector for this sub driver and | |
72 | * attach the encoder created above to the connector. | |
73 | */ | |
74 | connector = exynos_drm_connector_create(dev, encoder); | |
75 | if (!connector) { | |
76 | DRM_ERROR("failed to create connector\n"); | |
77 | encoder->funcs->destroy(encoder); | |
78 | return -EFAULT; | |
79 | } | |
80 | ||
81 | subdrv->encoder = encoder; | |
82 | subdrv->connector = connector; | |
83 | ||
84 | return 0; | |
85 | } | |
86 | ||
87 | static void exynos_drm_subdrv_remove(struct drm_device *dev, | |
88 | struct exynos_drm_subdrv *subdrv) | |
89 | { | |
90 | DRM_DEBUG_DRIVER("%s\n", __FILE__); | |
91 | ||
92 | if (subdrv->remove) | |
93 | subdrv->remove(dev); | |
94 | ||
95 | if (subdrv->encoder) { | |
96 | struct drm_encoder *encoder = subdrv->encoder; | |
97 | encoder->funcs->destroy(encoder); | |
98 | subdrv->encoder = NULL; | |
99 | } | |
100 | ||
101 | if (subdrv->connector) { | |
102 | struct drm_connector *connector = subdrv->connector; | |
103 | connector->funcs->destroy(connector); | |
104 | subdrv->connector = NULL; | |
105 | } | |
106 | } | |
107 | ||
108 | int exynos_drm_device_register(struct drm_device *dev) | |
109 | { | |
110 | struct exynos_drm_subdrv *subdrv, *n; | |
111 | int err; | |
112 | ||
113 | DRM_DEBUG_DRIVER("%s\n", __FILE__); | |
114 | ||
115 | if (!dev) | |
116 | return -EINVAL; | |
117 | ||
132a5b91 | 118 | drm_dev = dev; |
1c248b7d | 119 | |
1c248b7d | 120 | list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) { |
132a5b91 | 121 | subdrv->drm_dev = dev; |
1c248b7d ID |
122 | err = exynos_drm_subdrv_probe(dev, subdrv); |
123 | if (err) { | |
124 | DRM_DEBUG("exynos drm subdrv probe failed.\n"); | |
125 | list_del(&subdrv->list); | |
126 | } | |
127 | } | |
128 | ||
1c248b7d ID |
129 | return 0; |
130 | } | |
131 | EXPORT_SYMBOL_GPL(exynos_drm_device_register); | |
132 | ||
133 | int exynos_drm_device_unregister(struct drm_device *dev) | |
134 | { | |
135 | struct exynos_drm_subdrv *subdrv; | |
136 | ||
137 | DRM_DEBUG_DRIVER("%s\n", __FILE__); | |
138 | ||
132a5b91 | 139 | if (!dev) { |
1c248b7d ID |
140 | WARN(1, "Unexpected drm device unregister!\n"); |
141 | return -EINVAL; | |
142 | } | |
143 | ||
1c248b7d ID |
144 | list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) |
145 | exynos_drm_subdrv_remove(dev, subdrv); | |
146 | ||
147 | drm_dev = NULL; | |
1c248b7d ID |
148 | |
149 | return 0; | |
150 | } | |
151 | EXPORT_SYMBOL_GPL(exynos_drm_device_unregister); | |
152 | ||
1c248b7d ID |
153 | int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv) |
154 | { | |
1c248b7d ID |
155 | DRM_DEBUG_DRIVER("%s\n", __FILE__); |
156 | ||
157 | if (!subdrv) | |
158 | return -EINVAL; | |
159 | ||
1c248b7d | 160 | list_add_tail(&subdrv->list, &exynos_drm_subdrv_list); |
1c248b7d ID |
161 | |
162 | return 0; | |
163 | } | |
164 | EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register); | |
165 | ||
166 | int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv) | |
167 | { | |
1c248b7d ID |
168 | DRM_DEBUG_DRIVER("%s\n", __FILE__); |
169 | ||
132a5b91 JS |
170 | if (!subdrv) |
171 | return -EINVAL; | |
1c248b7d | 172 | |
132a5b91 | 173 | list_del(&subdrv->list); |
1c248b7d | 174 | |
132a5b91 | 175 | return 0; |
1c248b7d ID |
176 | } |
177 | EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister); |