2 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * Inki Dae <inki.dae@samsung.com>
5 * Joonyoung Shim <jy0922.shim@samsung.com>
6 * Seung-Woo Kim <sw0312.kim@samsung.com>
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:
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
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.
31 #include <drm/exynos_drm.h>
33 #include "exynos_drm_drv.h"
34 #include "exynos_drm_crtc.h"
35 #include "exynos_drm_fbdev.h"
36 #include "exynos_drm_fb.h"
37 #include "exynos_drm_gem.h"
39 #define DRIVER_NAME "exynos-drm"
40 #define DRIVER_DESC "Samsung SoC DRM"
41 #define DRIVER_DATE "20110530"
42 #define DRIVER_MAJOR 1
43 #define DRIVER_MINOR 0
45 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
47 struct exynos_drm_private *private;
51 DRM_DEBUG_DRIVER("%s\n", __FILE__);
53 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
55 DRM_ERROR("failed to allocate private\n");
59 INIT_LIST_HEAD(&private->pageflip_event_list);
60 dev->dev_private = (void *)private;
62 drm_mode_config_init(dev);
64 exynos_drm_mode_config_init(dev);
67 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
68 * without dependency of hardware.
70 for (nr = 0; nr < MAX_CRTC; nr++) {
71 ret = exynos_drm_crtc_create(dev, nr);
76 ret = drm_vblank_init(dev, MAX_CRTC);
81 * probe sub drivers such as display controller and hdmi driver,
82 * that were registered at probe() of platform driver
83 * to the sub driver and create encoder and connector for them.
85 ret = exynos_drm_device_register(dev);
90 * create and configure fb helper and also exynos specific
93 ret = exynos_drm_fbdev_init(dev);
95 DRM_ERROR("failed to initialize drm fbdev\n");
102 exynos_drm_device_unregister(dev);
104 drm_vblank_cleanup(dev);
106 drm_mode_config_cleanup(dev);
112 static int exynos_drm_unload(struct drm_device *dev)
114 DRM_DEBUG_DRIVER("%s\n", __FILE__);
116 exynos_drm_fbdev_fini(dev);
117 exynos_drm_device_unregister(dev);
118 drm_vblank_cleanup(dev);
119 drm_mode_config_cleanup(dev);
120 kfree(dev->dev_private);
122 dev->dev_private = NULL;
127 static void exynos_drm_lastclose(struct drm_device *dev)
129 DRM_DEBUG_DRIVER("%s\n", __FILE__);
131 exynos_drm_fbdev_restore_mode(dev);
134 static struct vm_operations_struct exynos_drm_gem_vm_ops = {
135 .fault = exynos_drm_gem_fault,
136 .open = drm_gem_vm_open,
137 .close = drm_gem_vm_close,
140 static struct drm_ioctl_desc exynos_ioctls[] = {
141 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
142 DRM_UNLOCKED | DRM_AUTH),
143 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
144 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
146 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
147 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
150 static struct drm_driver exynos_drm_driver = {
151 .driver_features = DRIVER_HAVE_IRQ | DRIVER_BUS_PLATFORM |
152 DRIVER_MODESET | DRIVER_GEM,
153 .load = exynos_drm_load,
154 .unload = exynos_drm_unload,
155 .lastclose = exynos_drm_lastclose,
156 .get_vblank_counter = drm_vblank_count,
157 .enable_vblank = exynos_drm_crtc_enable_vblank,
158 .disable_vblank = exynos_drm_crtc_disable_vblank,
159 .gem_init_object = exynos_drm_gem_init_object,
160 .gem_free_object = exynos_drm_gem_free_object,
161 .gem_vm_ops = &exynos_drm_gem_vm_ops,
162 .dumb_create = exynos_drm_gem_dumb_create,
163 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
164 .dumb_destroy = exynos_drm_gem_dumb_destroy,
165 .ioctls = exynos_ioctls,
167 .owner = THIS_MODULE,
169 .mmap = exynos_drm_gem_mmap,
172 .unlocked_ioctl = drm_ioctl,
173 .release = drm_release,
178 .major = DRIVER_MAJOR,
179 .minor = DRIVER_MINOR,
182 static int exynos_drm_platform_probe(struct platform_device *pdev)
184 DRM_DEBUG_DRIVER("%s\n", __FILE__);
186 exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
188 return drm_platform_init(&exynos_drm_driver, pdev);
191 static int exynos_drm_platform_remove(struct platform_device *pdev)
193 DRM_DEBUG_DRIVER("%s\n", __FILE__);
195 drm_platform_exit(&exynos_drm_driver, pdev);
200 static struct platform_driver exynos_drm_platform_driver = {
201 .probe = exynos_drm_platform_probe,
202 .remove = __devexit_p(exynos_drm_platform_remove),
204 .owner = THIS_MODULE,
209 static int __init exynos_drm_init(void)
211 DRM_DEBUG_DRIVER("%s\n", __FILE__);
213 return platform_driver_register(&exynos_drm_platform_driver);
216 static void __exit exynos_drm_exit(void)
218 DRM_DEBUG_DRIVER("%s\n", __FILE__);
220 platform_driver_unregister(&exynos_drm_platform_driver);
223 module_init(exynos_drm_init);
224 module_exit(exynos_drm_exit);
226 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
227 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
228 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
229 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
230 MODULE_LICENSE("GPL");