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_encoder.h"
37 #include "exynos_drm_fbdev.h"
38 #include "exynos_drm_fb.h"
39 #include "exynos_drm_gem.h"
40 #include "exynos_drm_plane.h"
41 #include "exynos_drm_vidi.h"
43 #define DRIVER_NAME "exynos"
44 #define DRIVER_DESC "Samsung SoC DRM"
45 #define DRIVER_DATE "20110530"
46 #define DRIVER_MAJOR 1
47 #define DRIVER_MINOR 0
49 #define VBLANK_OFF_DELAY 50000
51 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
53 struct exynos_drm_private *private;
57 DRM_DEBUG_DRIVER("%s\n", __FILE__);
59 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
61 DRM_ERROR("failed to allocate private\n");
65 INIT_LIST_HEAD(&private->pageflip_event_list);
66 dev->dev_private = (void *)private;
68 drm_mode_config_init(dev);
70 /* init kms poll for handling hpd */
71 drm_kms_helper_poll_init(dev);
73 exynos_drm_mode_config_init(dev);
76 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
77 * without dependency of hardware.
79 for (nr = 0; nr < MAX_CRTC; nr++) {
80 ret = exynos_drm_crtc_create(dev, nr);
85 for (nr = 0; nr < MAX_PLANE; nr++) {
86 ret = exynos_plane_init(dev, nr);
91 ret = drm_vblank_init(dev, MAX_CRTC);
96 * probe sub drivers such as display controller and hdmi driver,
97 * that were registered at probe() of platform driver
98 * to the sub driver and create encoder and connector for them.
100 ret = exynos_drm_device_register(dev);
104 /* setup possible_clones. */
105 exynos_drm_encoder_setup(dev);
108 * create and configure fb helper and also exynos specific
111 ret = exynos_drm_fbdev_init(dev);
113 DRM_ERROR("failed to initialize drm fbdev\n");
117 drm_vblank_offdelay = VBLANK_OFF_DELAY;
122 exynos_drm_device_unregister(dev);
124 drm_vblank_cleanup(dev);
126 drm_mode_config_cleanup(dev);
132 static int exynos_drm_unload(struct drm_device *dev)
134 DRM_DEBUG_DRIVER("%s\n", __FILE__);
136 exynos_drm_fbdev_fini(dev);
137 exynos_drm_device_unregister(dev);
138 drm_vblank_cleanup(dev);
139 drm_kms_helper_poll_fini(dev);
140 drm_mode_config_cleanup(dev);
141 kfree(dev->dev_private);
143 dev->dev_private = NULL;
148 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
150 DRM_DEBUG_DRIVER("%s\n", __FILE__);
152 return exynos_drm_subdrv_open(dev, file);
155 static void exynos_drm_preclose(struct drm_device *dev,
156 struct drm_file *file)
158 struct exynos_drm_private *private = dev->dev_private;
159 struct drm_pending_vblank_event *e, *t;
162 DRM_DEBUG_DRIVER("%s\n", __FILE__);
164 /* release events of current file */
165 spin_lock_irqsave(&dev->event_lock, flags);
166 list_for_each_entry_safe(e, t, &private->pageflip_event_list,
168 if (e->base.file_priv == file) {
169 list_del(&e->base.link);
170 e->base.destroy(&e->base);
173 spin_unlock_irqrestore(&dev->event_lock, flags);
175 exynos_drm_subdrv_close(dev, file);
178 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
180 DRM_DEBUG_DRIVER("%s\n", __FILE__);
182 if (!file->driver_priv)
185 kfree(file->driver_priv);
186 file->driver_priv = NULL;
189 static void exynos_drm_lastclose(struct drm_device *dev)
191 DRM_DEBUG_DRIVER("%s\n", __FILE__);
193 exynos_drm_fbdev_restore_mode(dev);
196 static struct vm_operations_struct exynos_drm_gem_vm_ops = {
197 .fault = exynos_drm_gem_fault,
198 .open = drm_gem_vm_open,
199 .close = drm_gem_vm_close,
202 static struct drm_ioctl_desc exynos_ioctls[] = {
203 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
204 DRM_UNLOCKED | DRM_AUTH),
205 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
206 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
208 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
209 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
210 DRM_IOCTL_DEF_DRV(EXYNOS_PLANE_SET_ZPOS, exynos_plane_set_zpos_ioctl,
211 DRM_UNLOCKED | DRM_AUTH),
212 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
213 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
216 static const struct file_operations exynos_drm_driver_fops = {
217 .owner = THIS_MODULE,
219 .mmap = exynos_drm_gem_mmap,
222 .unlocked_ioctl = drm_ioctl,
223 .release = drm_release,
226 static struct drm_driver exynos_drm_driver = {
227 .driver_features = DRIVER_HAVE_IRQ | DRIVER_BUS_PLATFORM |
228 DRIVER_MODESET | DRIVER_GEM,
229 .load = exynos_drm_load,
230 .unload = exynos_drm_unload,
231 .open = exynos_drm_open,
232 .preclose = exynos_drm_preclose,
233 .lastclose = exynos_drm_lastclose,
234 .postclose = exynos_drm_postclose,
235 .get_vblank_counter = drm_vblank_count,
236 .enable_vblank = exynos_drm_crtc_enable_vblank,
237 .disable_vblank = exynos_drm_crtc_disable_vblank,
238 .gem_init_object = exynos_drm_gem_init_object,
239 .gem_free_object = exynos_drm_gem_free_object,
240 .gem_vm_ops = &exynos_drm_gem_vm_ops,
241 .dumb_create = exynos_drm_gem_dumb_create,
242 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
243 .dumb_destroy = exynos_drm_gem_dumb_destroy,
244 .ioctls = exynos_ioctls,
245 .fops = &exynos_drm_driver_fops,
249 .major = DRIVER_MAJOR,
250 .minor = DRIVER_MINOR,
253 static int exynos_drm_platform_probe(struct platform_device *pdev)
255 DRM_DEBUG_DRIVER("%s\n", __FILE__);
257 exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
259 return drm_platform_init(&exynos_drm_driver, pdev);
262 static int exynos_drm_platform_remove(struct platform_device *pdev)
264 DRM_DEBUG_DRIVER("%s\n", __FILE__);
266 drm_platform_exit(&exynos_drm_driver, pdev);
271 static struct platform_driver exynos_drm_platform_driver = {
272 .probe = exynos_drm_platform_probe,
273 .remove = __devexit_p(exynos_drm_platform_remove),
275 .owner = THIS_MODULE,
276 .name = "exynos-drm",
280 static int __init exynos_drm_init(void)
284 DRM_DEBUG_DRIVER("%s\n", __FILE__);
286 #ifdef CONFIG_DRM_EXYNOS_FIMD
287 ret = platform_driver_register(&fimd_driver);
292 #ifdef CONFIG_DRM_EXYNOS_HDMI
293 ret = platform_driver_register(&hdmi_driver);
296 ret = platform_driver_register(&mixer_driver);
299 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
301 goto out_common_hdmi;
304 #ifdef CONFIG_DRM_EXYNOS_VIDI
305 ret = platform_driver_register(&vidi_driver);
310 ret = platform_driver_register(&exynos_drm_platform_driver);
317 #ifdef CONFIG_DRM_EXYNOS_VIDI
319 platform_driver_unregister(&vidi_driver);
322 #ifdef CONFIG_DRM_EXYNOS_HDMI
323 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
325 platform_driver_unregister(&mixer_driver);
327 platform_driver_unregister(&hdmi_driver);
331 #ifdef CONFIG_DRM_EXYNOS_FIMD
332 platform_driver_unregister(&fimd_driver);
338 static void __exit exynos_drm_exit(void)
340 DRM_DEBUG_DRIVER("%s\n", __FILE__);
342 platform_driver_unregister(&exynos_drm_platform_driver);
344 #ifdef CONFIG_DRM_EXYNOS_HDMI
345 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
346 platform_driver_unregister(&mixer_driver);
347 platform_driver_unregister(&hdmi_driver);
350 #ifdef CONFIG_DRM_EXYNOS_VIDI
351 platform_driver_unregister(&vidi_driver);
354 #ifdef CONFIG_DRM_EXYNOS_FIMD
355 platform_driver_unregister(&fimd_driver);
359 module_init(exynos_drm_init);
360 module_exit(exynos_drm_exit);
362 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
363 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
364 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
365 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
366 MODULE_LICENSE("GPL");