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.
30 #include "drm_crtc_helper.h"
32 #include <drm/exynos_drm.h>
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 #include "exynos_drm_plane.h"
41 #define DRIVER_NAME "exynos"
42 #define DRIVER_DESC "Samsung SoC DRM"
43 #define DRIVER_DATE "20110530"
44 #define DRIVER_MAJOR 1
45 #define DRIVER_MINOR 0
47 #define VBLANK_OFF_DELAY 50000
49 static int exynos_drm_load(struct drm_device
*dev
, unsigned long flags
)
51 struct exynos_drm_private
*private;
55 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
57 private = kzalloc(sizeof(struct exynos_drm_private
), GFP_KERNEL
);
59 DRM_ERROR("failed to allocate private\n");
63 INIT_LIST_HEAD(&private->pageflip_event_list
);
64 dev
->dev_private
= (void *)private;
66 drm_mode_config_init(dev
);
68 /* init kms poll for handling hpd */
69 drm_kms_helper_poll_init(dev
);
71 exynos_drm_mode_config_init(dev
);
74 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
75 * without dependency of hardware.
77 for (nr
= 0; nr
< MAX_CRTC
; nr
++) {
78 ret
= exynos_drm_crtc_create(dev
, nr
);
83 for (nr
= 0; nr
< MAX_PLANE
; nr
++) {
84 ret
= exynos_plane_init(dev
, nr
);
89 ret
= drm_vblank_init(dev
, MAX_CRTC
);
94 * probe sub drivers such as display controller and hdmi driver,
95 * that were registered at probe() of platform driver
96 * to the sub driver and create encoder and connector for them.
98 ret
= exynos_drm_device_register(dev
);
103 * create and configure fb helper and also exynos specific
106 ret
= exynos_drm_fbdev_init(dev
);
108 DRM_ERROR("failed to initialize drm fbdev\n");
112 drm_vblank_offdelay
= VBLANK_OFF_DELAY
;
117 exynos_drm_device_unregister(dev
);
119 drm_vblank_cleanup(dev
);
121 drm_mode_config_cleanup(dev
);
127 static int exynos_drm_unload(struct drm_device
*dev
)
129 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
131 exynos_drm_fbdev_fini(dev
);
132 exynos_drm_device_unregister(dev
);
133 drm_vblank_cleanup(dev
);
134 drm_kms_helper_poll_fini(dev
);
135 drm_mode_config_cleanup(dev
);
136 kfree(dev
->dev_private
);
138 dev
->dev_private
= NULL
;
143 static void exynos_drm_preclose(struct drm_device
*dev
,
144 struct drm_file
*file
)
146 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
150 static void exynos_drm_lastclose(struct drm_device
*dev
)
152 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
154 exynos_drm_fbdev_restore_mode(dev
);
157 static struct vm_operations_struct exynos_drm_gem_vm_ops
= {
158 .fault
= exynos_drm_gem_fault
,
159 .open
= drm_gem_vm_open
,
160 .close
= drm_gem_vm_close
,
163 static struct drm_ioctl_desc exynos_ioctls
[] = {
164 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE
, exynos_drm_gem_create_ioctl
,
165 DRM_UNLOCKED
| DRM_AUTH
),
166 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET
,
167 exynos_drm_gem_map_offset_ioctl
, DRM_UNLOCKED
|
169 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP
,
170 exynos_drm_gem_mmap_ioctl
, DRM_UNLOCKED
| DRM_AUTH
),
171 DRM_IOCTL_DEF_DRV(EXYNOS_PLANE_SET_ZPOS
, exynos_plane_set_zpos_ioctl
,
172 DRM_UNLOCKED
| DRM_AUTH
),
175 static const struct file_operations exynos_drm_driver_fops
= {
176 .owner
= THIS_MODULE
,
178 .mmap
= exynos_drm_gem_mmap
,
181 .unlocked_ioctl
= drm_ioctl
,
182 .release
= drm_release
,
185 static struct drm_driver exynos_drm_driver
= {
186 .driver_features
= DRIVER_HAVE_IRQ
| DRIVER_BUS_PLATFORM
|
187 DRIVER_MODESET
| DRIVER_GEM
,
188 .load
= exynos_drm_load
,
189 .unload
= exynos_drm_unload
,
190 .preclose
= exynos_drm_preclose
,
191 .lastclose
= exynos_drm_lastclose
,
192 .get_vblank_counter
= drm_vblank_count
,
193 .enable_vblank
= exynos_drm_crtc_enable_vblank
,
194 .disable_vblank
= exynos_drm_crtc_disable_vblank
,
195 .gem_init_object
= exynos_drm_gem_init_object
,
196 .gem_free_object
= exynos_drm_gem_free_object
,
197 .gem_vm_ops
= &exynos_drm_gem_vm_ops
,
198 .dumb_create
= exynos_drm_gem_dumb_create
,
199 .dumb_map_offset
= exynos_drm_gem_dumb_map_offset
,
200 .dumb_destroy
= exynos_drm_gem_dumb_destroy
,
201 .ioctls
= exynos_ioctls
,
202 .fops
= &exynos_drm_driver_fops
,
206 .major
= DRIVER_MAJOR
,
207 .minor
= DRIVER_MINOR
,
210 static int exynos_drm_platform_probe(struct platform_device
*pdev
)
212 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
214 exynos_drm_driver
.num_ioctls
= DRM_ARRAY_SIZE(exynos_ioctls
);
216 return drm_platform_init(&exynos_drm_driver
, pdev
);
219 static int exynos_drm_platform_remove(struct platform_device
*pdev
)
221 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
223 drm_platform_exit(&exynos_drm_driver
, pdev
);
228 static struct platform_driver exynos_drm_platform_driver
= {
229 .probe
= exynos_drm_platform_probe
,
230 .remove
= __devexit_p(exynos_drm_platform_remove
),
232 .owner
= THIS_MODULE
,
237 static int __init
exynos_drm_init(void)
239 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
241 return platform_driver_register(&exynos_drm_platform_driver
);
244 static void __exit
exynos_drm_exit(void)
246 DRM_DEBUG_DRIVER("%s\n", __FILE__
);
248 platform_driver_unregister(&exynos_drm_platform_driver
);
251 module_init(exynos_drm_init
);
252 module_exit(exynos_drm_exit
);
254 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
255 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
256 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
257 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
258 MODULE_LICENSE("GPL");