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_ipp.h"
44 #include "exynos_drm_iommu.h"
46 #define DRIVER_NAME "exynos"
47 #define DRIVER_DESC "Samsung SoC DRM"
48 #define DRIVER_DATE "20110530"
49 #define DRIVER_MAJOR 1
50 #define DRIVER_MINOR 0
52 #define VBLANK_OFF_DELAY 50000
54 /* platform device pointer for eynos drm device. */
55 static struct platform_device *exynos_drm_pdev;
57 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
59 struct exynos_drm_private *private;
63 DRM_DEBUG_DRIVER("%s\n", __FILE__);
65 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
67 DRM_ERROR("failed to allocate private\n");
71 INIT_LIST_HEAD(&private->pageflip_event_list);
72 dev->dev_private = (void *)private;
75 * create mapping to manage iommu table and set a pointer to iommu
76 * mapping structure to iommu_mapping of private data.
77 * also this iommu_mapping can be used to check if iommu is supported
80 ret = drm_create_iommu_mapping(dev);
82 DRM_ERROR("failed to create iommu mapping.\n");
86 drm_mode_config_init(dev);
88 /* init kms poll for handling hpd */
89 drm_kms_helper_poll_init(dev);
91 exynos_drm_mode_config_init(dev);
94 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
95 * without dependency of hardware.
97 for (nr = 0; nr < MAX_CRTC; nr++) {
98 ret = exynos_drm_crtc_create(dev, nr);
100 goto err_release_iommu_mapping;
103 for (nr = 0; nr < MAX_PLANE; nr++) {
104 struct drm_plane *plane;
105 unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
107 plane = exynos_plane_init(dev, possible_crtcs, false);
109 goto err_release_iommu_mapping;
112 ret = drm_vblank_init(dev, MAX_CRTC);
114 goto err_release_iommu_mapping;
117 * probe sub drivers such as display controller and hdmi driver,
118 * that were registered at probe() of platform driver
119 * to the sub driver and create encoder and connector for them.
121 ret = exynos_drm_device_register(dev);
125 /* setup possible_clones. */
126 exynos_drm_encoder_setup(dev);
129 * create and configure fb helper and also exynos specific
132 ret = exynos_drm_fbdev_init(dev);
134 DRM_ERROR("failed to initialize drm fbdev\n");
138 drm_vblank_offdelay = VBLANK_OFF_DELAY;
143 exynos_drm_device_unregister(dev);
145 drm_vblank_cleanup(dev);
146 err_release_iommu_mapping:
147 drm_release_iommu_mapping(dev);
149 drm_mode_config_cleanup(dev);
155 static int exynos_drm_unload(struct drm_device *dev)
157 DRM_DEBUG_DRIVER("%s\n", __FILE__);
159 exynos_drm_fbdev_fini(dev);
160 exynos_drm_device_unregister(dev);
161 drm_vblank_cleanup(dev);
162 drm_kms_helper_poll_fini(dev);
163 drm_mode_config_cleanup(dev);
165 drm_release_iommu_mapping(dev);
166 kfree(dev->dev_private);
168 dev->dev_private = NULL;
173 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
175 struct drm_exynos_file_private *file_priv;
177 DRM_DEBUG_DRIVER("%s\n", __FILE__);
179 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
183 file->driver_priv = file_priv;
185 return exynos_drm_subdrv_open(dev, file);
188 static void exynos_drm_preclose(struct drm_device *dev,
189 struct drm_file *file)
191 struct exynos_drm_private *private = dev->dev_private;
192 struct drm_pending_vblank_event *e, *t;
195 DRM_DEBUG_DRIVER("%s\n", __FILE__);
197 /* release events of current file */
198 spin_lock_irqsave(&dev->event_lock, flags);
199 list_for_each_entry_safe(e, t, &private->pageflip_event_list,
201 if (e->base.file_priv == file) {
202 list_del(&e->base.link);
203 e->base.destroy(&e->base);
206 spin_unlock_irqrestore(&dev->event_lock, flags);
208 exynos_drm_subdrv_close(dev, file);
211 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
213 DRM_DEBUG_DRIVER("%s\n", __FILE__);
215 if (!file->driver_priv)
218 kfree(file->driver_priv);
219 file->driver_priv = NULL;
222 static void exynos_drm_lastclose(struct drm_device *dev)
224 DRM_DEBUG_DRIVER("%s\n", __FILE__);
226 exynos_drm_fbdev_restore_mode(dev);
229 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
230 .fault = exynos_drm_gem_fault,
231 .open = drm_gem_vm_open,
232 .close = drm_gem_vm_close,
235 static struct drm_ioctl_desc exynos_ioctls[] = {
236 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
237 DRM_UNLOCKED | DRM_AUTH),
238 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
239 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
241 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
242 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
243 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
244 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
245 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
246 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
247 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
248 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
249 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
250 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
251 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
252 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
253 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
254 exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
255 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
256 exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
257 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
258 exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
259 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
260 exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
263 static const struct file_operations exynos_drm_driver_fops = {
264 .owner = THIS_MODULE,
266 .mmap = exynos_drm_gem_mmap,
269 .unlocked_ioctl = drm_ioctl,
271 .compat_ioctl = drm_compat_ioctl,
273 .release = drm_release,
276 static struct drm_driver exynos_drm_driver = {
277 .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
278 DRIVER_GEM | DRIVER_PRIME,
279 .load = exynos_drm_load,
280 .unload = exynos_drm_unload,
281 .open = exynos_drm_open,
282 .preclose = exynos_drm_preclose,
283 .lastclose = exynos_drm_lastclose,
284 .postclose = exynos_drm_postclose,
285 .get_vblank_counter = drm_vblank_count,
286 .enable_vblank = exynos_drm_crtc_enable_vblank,
287 .disable_vblank = exynos_drm_crtc_disable_vblank,
288 .gem_init_object = exynos_drm_gem_init_object,
289 .gem_free_object = exynos_drm_gem_free_object,
290 .gem_vm_ops = &exynos_drm_gem_vm_ops,
291 .dumb_create = exynos_drm_gem_dumb_create,
292 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
293 .dumb_destroy = exynos_drm_gem_dumb_destroy,
294 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
295 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
296 .gem_prime_export = exynos_dmabuf_prime_export,
297 .gem_prime_import = exynos_dmabuf_prime_import,
298 .ioctls = exynos_ioctls,
299 .fops = &exynos_drm_driver_fops,
303 .major = DRIVER_MAJOR,
304 .minor = DRIVER_MINOR,
307 static int exynos_drm_platform_probe(struct platform_device *pdev)
309 DRM_DEBUG_DRIVER("%s\n", __FILE__);
311 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
312 exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
314 return drm_platform_init(&exynos_drm_driver, pdev);
317 static int exynos_drm_platform_remove(struct platform_device *pdev)
319 DRM_DEBUG_DRIVER("%s\n", __FILE__);
321 drm_platform_exit(&exynos_drm_driver, pdev);
326 static struct platform_driver exynos_drm_platform_driver = {
327 .probe = exynos_drm_platform_probe,
328 .remove = __devexit_p(exynos_drm_platform_remove),
330 .owner = THIS_MODULE,
331 .name = "exynos-drm",
335 static int __init exynos_drm_init(void)
339 DRM_DEBUG_DRIVER("%s\n", __FILE__);
341 #ifdef CONFIG_DRM_EXYNOS_FIMD
342 ret = platform_driver_register(&fimd_driver);
347 #ifdef CONFIG_DRM_EXYNOS_HDMI
348 ret = platform_driver_register(&hdmi_driver);
351 ret = platform_driver_register(&mixer_driver);
354 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
356 goto out_common_hdmi;
358 ret = exynos_platform_device_hdmi_register();
360 goto out_common_hdmi_dev;
363 #ifdef CONFIG_DRM_EXYNOS_VIDI
364 ret = platform_driver_register(&vidi_driver);
369 #ifdef CONFIG_DRM_EXYNOS_G2D
370 ret = platform_driver_register(&g2d_driver);
375 #ifdef CONFIG_DRM_EXYNOS_FIMC
376 ret = platform_driver_register(&fimc_driver);
381 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
382 ret = platform_driver_register(&rotator_driver);
387 #ifdef CONFIG_DRM_EXYNOS_GSC
388 ret = platform_driver_register(&gsc_driver);
393 #ifdef CONFIG_DRM_EXYNOS_IPP
394 ret = platform_driver_register(&ipp_driver);
399 ret = platform_driver_register(&exynos_drm_platform_driver);
403 exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
405 if (IS_ERR_OR_NULL(exynos_drm_pdev)) {
406 ret = PTR_ERR(exynos_drm_pdev);
413 platform_driver_unregister(&exynos_drm_platform_driver);
416 #ifdef CONFIG_DRM_EXYNOS_IPP
417 platform_driver_unregister(&ipp_driver);
421 #ifdef CONFIG_DRM_EXYNOS_GSC
422 platform_driver_unregister(&gsc_driver);
426 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
427 platform_driver_unregister(&rotator_driver);
431 #ifdef CONFIG_DRM_EXYNOS_FIMC
432 platform_driver_unregister(&fimc_driver);
436 #ifdef CONFIG_DRM_EXYNOS_G2D
437 platform_driver_unregister(&g2d_driver);
441 #ifdef CONFIG_DRM_EXYNOS_VIDI
442 platform_driver_unregister(&vidi_driver);
446 #ifdef CONFIG_DRM_EXYNOS_HDMI
447 exynos_platform_device_hdmi_unregister();
449 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
451 platform_driver_unregister(&mixer_driver);
453 platform_driver_unregister(&hdmi_driver);
457 #ifdef CONFIG_DRM_EXYNOS_FIMD
458 platform_driver_unregister(&fimd_driver);
464 static void __exit exynos_drm_exit(void)
466 DRM_DEBUG_DRIVER("%s\n", __FILE__);
468 platform_device_unregister(exynos_drm_pdev);
470 platform_driver_unregister(&exynos_drm_platform_driver);
472 #ifdef CONFIG_DRM_EXYNOS_IPP
473 platform_driver_unregister(&ipp_driver);
476 #ifdef CONFIG_DRM_EXYNOS_GSC
477 platform_driver_unregister(&gsc_driver);
480 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
481 platform_driver_unregister(&rotator_driver);
484 #ifdef CONFIG_DRM_EXYNOS_FIMC
485 platform_driver_unregister(&fimc_driver);
488 #ifdef CONFIG_DRM_EXYNOS_G2D
489 platform_driver_unregister(&g2d_driver);
492 #ifdef CONFIG_DRM_EXYNOS_HDMI
493 exynos_platform_device_hdmi_unregister();
494 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
495 platform_driver_unregister(&mixer_driver);
496 platform_driver_unregister(&hdmi_driver);
499 #ifdef CONFIG_DRM_EXYNOS_VIDI
500 platform_driver_unregister(&vidi_driver);
503 #ifdef CONFIG_DRM_EXYNOS_FIMD
504 platform_driver_unregister(&fimd_driver);
508 module_init(exynos_drm_init);
509 module_exit(exynos_drm_exit);
511 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
512 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
513 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
514 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
515 MODULE_LICENSE("GPL");