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.
29 #include <drm/drm_crtc_helper.h>
31 #include <drm/exynos_drm.h>
33 #include "exynos_drm_drv.h"
34 #include "exynos_drm_crtc.h"
35 #include "exynos_drm_encoder.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"
40 #include "exynos_drm_vidi.h"
41 #include "exynos_drm_dmabuf.h"
42 #include "exynos_drm_g2d.h"
43 #include "exynos_drm_iommu.h"
45 #define DRIVER_NAME "exynos"
46 #define DRIVER_DESC "Samsung SoC DRM"
47 #define DRIVER_DATE "20110530"
48 #define DRIVER_MAJOR 1
49 #define DRIVER_MINOR 0
51 #define VBLANK_OFF_DELAY 50000
53 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
55 struct exynos_drm_private *private;
59 DRM_DEBUG_DRIVER("%s\n", __FILE__);
61 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
63 DRM_ERROR("failed to allocate private\n");
67 INIT_LIST_HEAD(&private->pageflip_event_list);
68 dev->dev_private = (void *)private;
71 * create mapping to manage iommu table and set a pointer to iommu
72 * mapping structure to iommu_mapping of private data.
73 * also this iommu_mapping can be used to check if iommu is supported
76 ret = drm_create_iommu_mapping(dev);
78 DRM_ERROR("failed to create iommu mapping.\n");
82 drm_mode_config_init(dev);
84 /* init kms poll for handling hpd */
85 drm_kms_helper_poll_init(dev);
87 exynos_drm_mode_config_init(dev);
90 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
91 * without dependency of hardware.
93 for (nr = 0; nr < MAX_CRTC; nr++) {
94 ret = exynos_drm_crtc_create(dev, nr);
96 goto err_release_iommu_mapping;
99 for (nr = 0; nr < MAX_PLANE; nr++) {
100 struct drm_plane *plane;
101 unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
103 plane = exynos_plane_init(dev, possible_crtcs, false);
105 goto err_release_iommu_mapping;
108 ret = drm_vblank_init(dev, MAX_CRTC);
110 goto err_release_iommu_mapping;
113 * probe sub drivers such as display controller and hdmi driver,
114 * that were registered at probe() of platform driver
115 * to the sub driver and create encoder and connector for them.
117 ret = exynos_drm_device_register(dev);
121 /* setup possible_clones. */
122 exynos_drm_encoder_setup(dev);
125 * create and configure fb helper and also exynos specific
128 ret = exynos_drm_fbdev_init(dev);
130 DRM_ERROR("failed to initialize drm fbdev\n");
134 drm_vblank_offdelay = VBLANK_OFF_DELAY;
139 exynos_drm_device_unregister(dev);
141 drm_vblank_cleanup(dev);
142 err_release_iommu_mapping:
143 drm_release_iommu_mapping(dev);
145 drm_mode_config_cleanup(dev);
151 static int exynos_drm_unload(struct drm_device *dev)
153 DRM_DEBUG_DRIVER("%s\n", __FILE__);
155 exynos_drm_fbdev_fini(dev);
156 exynos_drm_device_unregister(dev);
157 drm_vblank_cleanup(dev);
158 drm_kms_helper_poll_fini(dev);
159 drm_mode_config_cleanup(dev);
161 drm_release_iommu_mapping(dev);
162 kfree(dev->dev_private);
164 dev->dev_private = NULL;
169 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
171 struct drm_exynos_file_private *file_priv;
173 DRM_DEBUG_DRIVER("%s\n", __FILE__);
175 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
179 file->driver_priv = file_priv;
181 return exynos_drm_subdrv_open(dev, file);
184 static void exynos_drm_preclose(struct drm_device *dev,
185 struct drm_file *file)
187 struct exynos_drm_private *private = dev->dev_private;
188 struct drm_pending_vblank_event *e, *t;
191 DRM_DEBUG_DRIVER("%s\n", __FILE__);
193 /* release events of current file */
194 spin_lock_irqsave(&dev->event_lock, flags);
195 list_for_each_entry_safe(e, t, &private->pageflip_event_list,
197 if (e->base.file_priv == file) {
198 list_del(&e->base.link);
199 e->base.destroy(&e->base);
202 spin_unlock_irqrestore(&dev->event_lock, flags);
204 exynos_drm_subdrv_close(dev, file);
207 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
209 DRM_DEBUG_DRIVER("%s\n", __FILE__);
211 if (!file->driver_priv)
214 kfree(file->driver_priv);
215 file->driver_priv = NULL;
218 static void exynos_drm_lastclose(struct drm_device *dev)
220 DRM_DEBUG_DRIVER("%s\n", __FILE__);
222 exynos_drm_fbdev_restore_mode(dev);
225 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
226 .fault = exynos_drm_gem_fault,
227 .open = drm_gem_vm_open,
228 .close = drm_gem_vm_close,
231 static struct drm_ioctl_desc exynos_ioctls[] = {
232 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
233 DRM_UNLOCKED | DRM_AUTH),
234 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
235 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
237 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
238 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
239 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
240 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
241 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
242 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
243 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
244 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
245 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
246 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
247 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
248 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
251 static const struct file_operations exynos_drm_driver_fops = {
252 .owner = THIS_MODULE,
254 .mmap = exynos_drm_gem_mmap,
257 .unlocked_ioctl = drm_ioctl,
259 .compat_ioctl = drm_compat_ioctl,
261 .release = drm_release,
264 static struct drm_driver exynos_drm_driver = {
265 .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
266 DRIVER_GEM | DRIVER_PRIME,
267 .load = exynos_drm_load,
268 .unload = exynos_drm_unload,
269 .open = exynos_drm_open,
270 .preclose = exynos_drm_preclose,
271 .lastclose = exynos_drm_lastclose,
272 .postclose = exynos_drm_postclose,
273 .get_vblank_counter = drm_vblank_count,
274 .enable_vblank = exynos_drm_crtc_enable_vblank,
275 .disable_vblank = exynos_drm_crtc_disable_vblank,
276 .gem_init_object = exynos_drm_gem_init_object,
277 .gem_free_object = exynos_drm_gem_free_object,
278 .gem_vm_ops = &exynos_drm_gem_vm_ops,
279 .dumb_create = exynos_drm_gem_dumb_create,
280 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
281 .dumb_destroy = exynos_drm_gem_dumb_destroy,
282 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
283 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
284 .gem_prime_export = exynos_dmabuf_prime_export,
285 .gem_prime_import = exynos_dmabuf_prime_import,
286 .ioctls = exynos_ioctls,
287 .fops = &exynos_drm_driver_fops,
291 .major = DRIVER_MAJOR,
292 .minor = DRIVER_MINOR,
295 static int exynos_drm_platform_probe(struct platform_device *pdev)
297 DRM_DEBUG_DRIVER("%s\n", __FILE__);
299 exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
301 return drm_platform_init(&exynos_drm_driver, pdev);
304 static int exynos_drm_platform_remove(struct platform_device *pdev)
306 DRM_DEBUG_DRIVER("%s\n", __FILE__);
308 drm_platform_exit(&exynos_drm_driver, pdev);
313 static struct platform_driver exynos_drm_platform_driver = {
314 .probe = exynos_drm_platform_probe,
315 .remove = __devexit_p(exynos_drm_platform_remove),
317 .owner = THIS_MODULE,
318 .name = "exynos-drm",
322 static int __init exynos_drm_init(void)
326 DRM_DEBUG_DRIVER("%s\n", __FILE__);
328 #ifdef CONFIG_DRM_EXYNOS_FIMD
329 ret = platform_driver_register(&fimd_driver);
334 #ifdef CONFIG_DRM_EXYNOS_HDMI
335 ret = platform_driver_register(&hdmi_driver);
338 ret = platform_driver_register(&mixer_driver);
341 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
343 goto out_common_hdmi;
346 #ifdef CONFIG_DRM_EXYNOS_VIDI
347 ret = platform_driver_register(&vidi_driver);
352 #ifdef CONFIG_DRM_EXYNOS_G2D
353 ret = platform_driver_register(&g2d_driver);
358 ret = platform_driver_register(&exynos_drm_platform_driver);
365 #ifdef CONFIG_DRM_EXYNOS_G2D
366 platform_driver_unregister(&g2d_driver);
370 #ifdef CONFIG_DRM_EXYNOS_VIDI
372 platform_driver_unregister(&vidi_driver);
375 #ifdef CONFIG_DRM_EXYNOS_HDMI
376 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
378 platform_driver_unregister(&mixer_driver);
380 platform_driver_unregister(&hdmi_driver);
384 #ifdef CONFIG_DRM_EXYNOS_FIMD
385 platform_driver_unregister(&fimd_driver);
391 static void __exit exynos_drm_exit(void)
393 DRM_DEBUG_DRIVER("%s\n", __FILE__);
395 platform_driver_unregister(&exynos_drm_platform_driver);
397 #ifdef CONFIG_DRM_EXYNOS_G2D
398 platform_driver_unregister(&g2d_driver);
401 #ifdef CONFIG_DRM_EXYNOS_HDMI
402 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
403 platform_driver_unregister(&mixer_driver);
404 platform_driver_unregister(&hdmi_driver);
407 #ifdef CONFIG_DRM_EXYNOS_VIDI
408 platform_driver_unregister(&vidi_driver);
411 #ifdef CONFIG_DRM_EXYNOS_FIMD
412 platform_driver_unregister(&fimd_driver);
416 module_init(exynos_drm_init);
417 module_exit(exynos_drm_exit);
419 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
420 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
421 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
422 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
423 MODULE_LICENSE("GPL");