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 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
15 #include <drm/drm_crtc_helper.h>
17 #include <drm/exynos_drm.h>
19 #include "exynos_drm_drv.h"
20 #include "exynos_drm_crtc.h"
21 #include "exynos_drm_encoder.h"
22 #include "exynos_drm_fbdev.h"
23 #include "exynos_drm_fb.h"
24 #include "exynos_drm_gem.h"
25 #include "exynos_drm_plane.h"
26 #include "exynos_drm_vidi.h"
27 #include "exynos_drm_dmabuf.h"
28 #include "exynos_drm_g2d.h"
29 #include "exynos_drm_ipp.h"
30 #include "exynos_drm_iommu.h"
32 #define DRIVER_NAME "exynos"
33 #define DRIVER_DESC "Samsung SoC DRM"
34 #define DRIVER_DATE "20110530"
35 #define DRIVER_MAJOR 1
36 #define DRIVER_MINOR 0
38 #define VBLANK_OFF_DELAY 50000
40 /* platform device pointer for eynos drm device. */
41 static struct platform_device *exynos_drm_pdev;
43 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
45 struct exynos_drm_private *private;
49 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
53 INIT_LIST_HEAD(&private->pageflip_event_list);
54 dev->dev_private = (void *)private;
57 * create mapping to manage iommu table and set a pointer to iommu
58 * mapping structure to iommu_mapping of private data.
59 * also this iommu_mapping can be used to check if iommu is supported
62 ret = drm_create_iommu_mapping(dev);
64 DRM_ERROR("failed to create iommu mapping.\n");
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);
82 goto err_release_iommu_mapping;
85 for (nr = 0; nr < MAX_PLANE; nr++) {
86 struct drm_plane *plane;
87 unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
89 plane = exynos_plane_init(dev, possible_crtcs, false);
91 goto err_release_iommu_mapping;
94 ret = drm_vblank_init(dev, MAX_CRTC);
96 goto err_release_iommu_mapping;
99 * probe sub drivers such as display controller and hdmi driver,
100 * that were registered at probe() of platform driver
101 * to the sub driver and create encoder and connector for them.
103 ret = exynos_drm_device_register(dev);
107 /* setup possible_clones. */
108 exynos_drm_encoder_setup(dev);
111 * create and configure fb helper and also exynos specific
114 ret = exynos_drm_fbdev_init(dev);
116 DRM_ERROR("failed to initialize drm fbdev\n");
120 drm_vblank_offdelay = VBLANK_OFF_DELAY;
125 exynos_drm_device_unregister(dev);
127 drm_vblank_cleanup(dev);
128 err_release_iommu_mapping:
129 drm_release_iommu_mapping(dev);
131 drm_mode_config_cleanup(dev);
137 static int exynos_drm_unload(struct drm_device *dev)
139 exynos_drm_fbdev_fini(dev);
140 exynos_drm_device_unregister(dev);
141 drm_vblank_cleanup(dev);
142 drm_kms_helper_poll_fini(dev);
143 drm_mode_config_cleanup(dev);
145 drm_release_iommu_mapping(dev);
146 kfree(dev->dev_private);
148 dev->dev_private = NULL;
153 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
155 struct drm_exynos_file_private *file_priv;
158 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
162 file->driver_priv = file_priv;
164 ret = exynos_drm_subdrv_open(dev, file);
167 file->driver_priv = NULL;
173 static void exynos_drm_preclose(struct drm_device *dev,
174 struct drm_file *file)
176 exynos_drm_subdrv_close(dev, file);
179 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
181 struct exynos_drm_private *private = dev->dev_private;
182 struct drm_pending_vblank_event *v, *vt;
183 struct drm_pending_event *e, *et;
186 if (!file->driver_priv)
189 /* Release all events not unhandled by page flip handler. */
190 spin_lock_irqsave(&dev->event_lock, flags);
191 list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
193 if (v->base.file_priv == file) {
194 list_del(&v->base.link);
195 drm_vblank_put(dev, v->pipe);
196 v->base.destroy(&v->base);
200 /* Release all events handled by page flip handler but not freed. */
201 list_for_each_entry_safe(e, et, &file->event_list, link) {
205 spin_unlock_irqrestore(&dev->event_lock, flags);
208 kfree(file->driver_priv);
209 file->driver_priv = NULL;
212 static void exynos_drm_lastclose(struct drm_device *dev)
214 exynos_drm_fbdev_restore_mode(dev);
217 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
218 .fault = exynos_drm_gem_fault,
219 .open = drm_gem_vm_open,
220 .close = drm_gem_vm_close,
223 static const struct drm_ioctl_desc exynos_ioctls[] = {
224 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
225 DRM_UNLOCKED | DRM_AUTH),
226 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
227 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
229 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
230 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
231 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
232 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
233 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
234 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
235 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
236 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
237 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
238 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
239 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
240 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
241 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
242 exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
243 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
244 exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
245 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
246 exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
247 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
248 exynos_drm_ipp_cmd_ctrl, 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_free_object = exynos_drm_gem_free_object,
277 .gem_vm_ops = &exynos_drm_gem_vm_ops,
278 .dumb_create = exynos_drm_gem_dumb_create,
279 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
280 .dumb_destroy = drm_gem_dumb_destroy,
281 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
282 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
283 .gem_prime_export = exynos_dmabuf_prime_export,
284 .gem_prime_import = exynos_dmabuf_prime_import,
285 .ioctls = exynos_ioctls,
286 .num_ioctls = ARRAY_SIZE(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)
299 ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
303 return drm_platform_init(&exynos_drm_driver, pdev);
306 static int exynos_drm_platform_remove(struct platform_device *pdev)
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 = exynos_drm_platform_remove,
317 .owner = THIS_MODULE,
318 .name = "exynos-drm",
322 static int __init exynos_drm_init(void)
326 #ifdef CONFIG_DRM_EXYNOS_FIMD
327 ret = platform_driver_register(&fimd_driver);
332 #ifdef CONFIG_DRM_EXYNOS_HDMI
333 ret = platform_driver_register(&hdmi_driver);
336 ret = platform_driver_register(&mixer_driver);
339 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
341 goto out_common_hdmi;
343 ret = exynos_platform_device_hdmi_register();
345 goto out_common_hdmi_dev;
348 #ifdef CONFIG_DRM_EXYNOS_VIDI
349 ret = platform_driver_register(&vidi_driver);
354 #ifdef CONFIG_DRM_EXYNOS_G2D
355 ret = platform_driver_register(&g2d_driver);
360 #ifdef CONFIG_DRM_EXYNOS_FIMC
361 ret = platform_driver_register(&fimc_driver);
366 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
367 ret = platform_driver_register(&rotator_driver);
372 #ifdef CONFIG_DRM_EXYNOS_GSC
373 ret = platform_driver_register(&gsc_driver);
378 #ifdef CONFIG_DRM_EXYNOS_IPP
379 ret = platform_driver_register(&ipp_driver);
383 ret = exynos_platform_device_ipp_register();
388 ret = platform_driver_register(&exynos_drm_platform_driver);
392 exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
394 if (IS_ERR(exynos_drm_pdev)) {
395 ret = PTR_ERR(exynos_drm_pdev);
402 platform_driver_unregister(&exynos_drm_platform_driver);
405 #ifdef CONFIG_DRM_EXYNOS_IPP
406 exynos_platform_device_ipp_unregister();
408 platform_driver_unregister(&ipp_driver);
412 #ifdef CONFIG_DRM_EXYNOS_GSC
413 platform_driver_unregister(&gsc_driver);
417 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
418 platform_driver_unregister(&rotator_driver);
422 #ifdef CONFIG_DRM_EXYNOS_FIMC
423 platform_driver_unregister(&fimc_driver);
427 #ifdef CONFIG_DRM_EXYNOS_G2D
428 platform_driver_unregister(&g2d_driver);
432 #ifdef CONFIG_DRM_EXYNOS_VIDI
433 platform_driver_unregister(&vidi_driver);
437 #ifdef CONFIG_DRM_EXYNOS_HDMI
438 exynos_platform_device_hdmi_unregister();
440 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
442 platform_driver_unregister(&mixer_driver);
444 platform_driver_unregister(&hdmi_driver);
448 #ifdef CONFIG_DRM_EXYNOS_FIMD
449 platform_driver_unregister(&fimd_driver);
455 static void __exit exynos_drm_exit(void)
457 platform_device_unregister(exynos_drm_pdev);
459 platform_driver_unregister(&exynos_drm_platform_driver);
461 #ifdef CONFIG_DRM_EXYNOS_IPP
462 exynos_platform_device_ipp_unregister();
463 platform_driver_unregister(&ipp_driver);
466 #ifdef CONFIG_DRM_EXYNOS_GSC
467 platform_driver_unregister(&gsc_driver);
470 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
471 platform_driver_unregister(&rotator_driver);
474 #ifdef CONFIG_DRM_EXYNOS_FIMC
475 platform_driver_unregister(&fimc_driver);
478 #ifdef CONFIG_DRM_EXYNOS_G2D
479 platform_driver_unregister(&g2d_driver);
482 #ifdef CONFIG_DRM_EXYNOS_HDMI
483 exynos_platform_device_hdmi_unregister();
484 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
485 platform_driver_unregister(&mixer_driver);
486 platform_driver_unregister(&hdmi_driver);
489 #ifdef CONFIG_DRM_EXYNOS_VIDI
490 platform_driver_unregister(&vidi_driver);
493 #ifdef CONFIG_DRM_EXYNOS_FIMD
494 platform_driver_unregister(&fimd_driver);
498 module_init(exynos_drm_init);
499 module_exit(exynos_drm_exit);
501 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
502 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
503 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
504 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
505 MODULE_LICENSE("GPL");