blob: 53e2216de61dd5c42c35eaa7f0c23ca1e991a621 [file] [log] [blame]
Inki Dae1c248b72011-10-04 19:19:01 +09001/*
2 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
3 * Authors:
4 * Inki Dae <inki.dae@samsung.com>
5 * Joonyoung Shim <jy0922.shim@samsung.com>
6 * Seung-Woo Kim <sw0312.kim@samsung.com>
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 */
27
28#include "drmP.h"
29#include "drm.h"
Seung-Woo Kim7db3eba2011-10-18 16:58:05 +090030#include "drm_crtc_helper.h"
Inki Dae1c248b72011-10-04 19:19:01 +090031
32#include <drm/exynos_drm.h>
33
34#include "exynos_drm_drv.h"
35#include "exynos_drm_crtc.h"
36#include "exynos_drm_fbdev.h"
37#include "exynos_drm_fb.h"
38#include "exynos_drm_gem.h"
39
40#define DRIVER_NAME "exynos-drm"
41#define DRIVER_DESC "Samsung SoC DRM"
42#define DRIVER_DATE "20110530"
43#define DRIVER_MAJOR 1
44#define DRIVER_MINOR 0
45
46static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
47{
48 struct exynos_drm_private *private;
49 int ret;
50 int nr;
51
52 DRM_DEBUG_DRIVER("%s\n", __FILE__);
53
54 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
55 if (!private) {
56 DRM_ERROR("failed to allocate private\n");
57 return -ENOMEM;
58 }
59
60 INIT_LIST_HEAD(&private->pageflip_event_list);
61 dev->dev_private = (void *)private;
62
63 drm_mode_config_init(dev);
64
Seung-Woo Kim7db3eba2011-10-18 16:58:05 +090065 /* init kms poll for handling hpd */
66 drm_kms_helper_poll_init(dev);
67
Inki Dae1c248b72011-10-04 19:19:01 +090068 exynos_drm_mode_config_init(dev);
69
70 /*
71 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
72 * without dependency of hardware.
73 */
74 for (nr = 0; nr < MAX_CRTC; nr++) {
75 ret = exynos_drm_crtc_create(dev, nr);
76 if (ret)
77 goto err_crtc;
78 }
79
80 ret = drm_vblank_init(dev, MAX_CRTC);
81 if (ret)
82 goto err_crtc;
83
84 /*
85 * probe sub drivers such as display controller and hdmi driver,
86 * that were registered at probe() of platform driver
87 * to the sub driver and create encoder and connector for them.
88 */
89 ret = exynos_drm_device_register(dev);
90 if (ret)
91 goto err_vblank;
92
93 /*
94 * create and configure fb helper and also exynos specific
95 * fbdev object.
96 */
97 ret = exynos_drm_fbdev_init(dev);
98 if (ret) {
99 DRM_ERROR("failed to initialize drm fbdev\n");
100 goto err_drm_device;
101 }
102
103 return 0;
104
105err_drm_device:
106 exynos_drm_device_unregister(dev);
107err_vblank:
108 drm_vblank_cleanup(dev);
109err_crtc:
110 drm_mode_config_cleanup(dev);
111 kfree(private);
112
113 return ret;
114}
115
116static int exynos_drm_unload(struct drm_device *dev)
117{
118 DRM_DEBUG_DRIVER("%s\n", __FILE__);
119
120 exynos_drm_fbdev_fini(dev);
121 exynos_drm_device_unregister(dev);
122 drm_vblank_cleanup(dev);
Seung-Woo Kim7db3eba2011-10-18 16:58:05 +0900123 drm_kms_helper_poll_fini(dev);
Inki Dae1c248b72011-10-04 19:19:01 +0900124 drm_mode_config_cleanup(dev);
125 kfree(dev->dev_private);
126
127 dev->dev_private = NULL;
128
129 return 0;
130}
131
Inki Daeccf4d882011-10-14 13:29:51 +0900132static void exynos_drm_preclose(struct drm_device *dev,
133 struct drm_file *file_priv)
134{
135 struct exynos_drm_private *dev_priv = dev->dev_private;
136
137 /*
138 * drm framework frees all events at release time,
139 * so private event list should be cleared.
140 */
141 if (!list_empty(&dev_priv->pageflip_event_list))
142 INIT_LIST_HEAD(&dev_priv->pageflip_event_list);
143}
144
Inki Dae1c248b72011-10-04 19:19:01 +0900145static void exynos_drm_lastclose(struct drm_device *dev)
146{
147 DRM_DEBUG_DRIVER("%s\n", __FILE__);
148
149 exynos_drm_fbdev_restore_mode(dev);
150}
151
152static struct vm_operations_struct exynos_drm_gem_vm_ops = {
153 .fault = exynos_drm_gem_fault,
154 .open = drm_gem_vm_open,
155 .close = drm_gem_vm_close,
156};
157
158static struct drm_ioctl_desc exynos_ioctls[] = {
159 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
160 DRM_UNLOCKED | DRM_AUTH),
161 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
162 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
163 DRM_AUTH),
164 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
165 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
166};
167
168static struct drm_driver exynos_drm_driver = {
169 .driver_features = DRIVER_HAVE_IRQ | DRIVER_BUS_PLATFORM |
170 DRIVER_MODESET | DRIVER_GEM,
171 .load = exynos_drm_load,
172 .unload = exynos_drm_unload,
Inki Daeccf4d882011-10-14 13:29:51 +0900173 .preclose = exynos_drm_preclose,
Inki Dae1c248b72011-10-04 19:19:01 +0900174 .lastclose = exynos_drm_lastclose,
175 .get_vblank_counter = drm_vblank_count,
176 .enable_vblank = exynos_drm_crtc_enable_vblank,
177 .disable_vblank = exynos_drm_crtc_disable_vblank,
178 .gem_init_object = exynos_drm_gem_init_object,
179 .gem_free_object = exynos_drm_gem_free_object,
180 .gem_vm_ops = &exynos_drm_gem_vm_ops,
181 .dumb_create = exynos_drm_gem_dumb_create,
182 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
183 .dumb_destroy = exynos_drm_gem_dumb_destroy,
184 .ioctls = exynos_ioctls,
185 .fops = {
186 .owner = THIS_MODULE,
187 .open = drm_open,
188 .mmap = exynos_drm_gem_mmap,
189 .poll = drm_poll,
190 .read = drm_read,
191 .unlocked_ioctl = drm_ioctl,
192 .release = drm_release,
193 },
194 .name = DRIVER_NAME,
195 .desc = DRIVER_DESC,
196 .date = DRIVER_DATE,
197 .major = DRIVER_MAJOR,
198 .minor = DRIVER_MINOR,
199};
200
201static int exynos_drm_platform_probe(struct platform_device *pdev)
202{
203 DRM_DEBUG_DRIVER("%s\n", __FILE__);
204
205 exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
206
207 return drm_platform_init(&exynos_drm_driver, pdev);
208}
209
210static int exynos_drm_platform_remove(struct platform_device *pdev)
211{
212 DRM_DEBUG_DRIVER("%s\n", __FILE__);
213
214 drm_platform_exit(&exynos_drm_driver, pdev);
215
216 return 0;
217}
218
219static struct platform_driver exynos_drm_platform_driver = {
220 .probe = exynos_drm_platform_probe,
221 .remove = __devexit_p(exynos_drm_platform_remove),
222 .driver = {
223 .owner = THIS_MODULE,
224 .name = DRIVER_NAME,
225 },
226};
227
228static int __init exynos_drm_init(void)
229{
230 DRM_DEBUG_DRIVER("%s\n", __FILE__);
231
232 return platform_driver_register(&exynos_drm_platform_driver);
233}
234
235static void __exit exynos_drm_exit(void)
236{
237 DRM_DEBUG_DRIVER("%s\n", __FILE__);
238
239 platform_driver_unregister(&exynos_drm_platform_driver);
240}
241
242module_init(exynos_drm_init);
243module_exit(exynos_drm_exit);
244
245MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
246MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
247MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
248MODULE_DESCRIPTION("Samsung SoC DRM Driver");
249MODULE_LICENSE("GPL");