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 <linux/anon_inodes.h>
19 #include <drm/exynos_drm.h>
21 #include "exynos_drm_drv.h"
22 #include "exynos_drm_crtc.h"
23 #include "exynos_drm_encoder.h"
24 #include "exynos_drm_fbdev.h"
25 #include "exynos_drm_fb.h"
26 #include "exynos_drm_gem.h"
27 #include "exynos_drm_plane.h"
28 #include "exynos_drm_vidi.h"
29 #include "exynos_drm_dmabuf.h"
30 #include "exynos_drm_g2d.h"
31 #include "exynos_drm_ipp.h"
32 #include "exynos_drm_iommu.h"
34 #define DRIVER_NAME "exynos"
35 #define DRIVER_DESC "Samsung SoC DRM"
36 #define DRIVER_DATE "20110530"
37 #define DRIVER_MAJOR 1
38 #define DRIVER_MINOR 0
40 #define VBLANK_OFF_DELAY 50000
42 /* platform device pointer for eynos drm device. */
43 static struct platform_device *exynos_drm_pdev;
45 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
47 struct exynos_drm_private *private;
51 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
55 INIT_LIST_HEAD(&private->pageflip_event_list);
56 dev->dev_private = (void *)private;
59 * create mapping to manage iommu table and set a pointer to iommu
60 * mapping structure to iommu_mapping of private data.
61 * also this iommu_mapping can be used to check if iommu is supported
64 ret = drm_create_iommu_mapping(dev);
66 DRM_ERROR("failed to create iommu mapping.\n");
70 drm_mode_config_init(dev);
72 /* init kms poll for handling hpd */
73 drm_kms_helper_poll_init(dev);
75 exynos_drm_mode_config_init(dev);
78 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
79 * without dependency of hardware.
81 for (nr = 0; nr < MAX_CRTC; nr++) {
82 ret = exynos_drm_crtc_create(dev, nr);
84 goto err_release_iommu_mapping;
87 for (nr = 0; nr < MAX_PLANE; nr++) {
88 struct drm_plane *plane;
89 unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
91 plane = exynos_plane_init(dev, possible_crtcs, false);
93 goto err_release_iommu_mapping;
96 ret = drm_vblank_init(dev, MAX_CRTC);
98 goto err_release_iommu_mapping;
101 * probe sub drivers such as display controller and hdmi driver,
102 * that were registered at probe() of platform driver
103 * to the sub driver and create encoder and connector for them.
105 ret = exynos_drm_device_register(dev);
109 /* setup possible_clones. */
110 exynos_drm_encoder_setup(dev);
113 * create and configure fb helper and also exynos specific
116 ret = exynos_drm_fbdev_init(dev);
118 DRM_ERROR("failed to initialize drm fbdev\n");
122 drm_vblank_offdelay = VBLANK_OFF_DELAY;
124 platform_set_drvdata(dev->platformdev, dev);
129 exynos_drm_device_unregister(dev);
131 drm_vblank_cleanup(dev);
132 err_release_iommu_mapping:
133 drm_release_iommu_mapping(dev);
135 drm_mode_config_cleanup(dev);
141 static int exynos_drm_unload(struct drm_device *dev)
143 exynos_drm_fbdev_fini(dev);
144 exynos_drm_device_unregister(dev);
145 drm_vblank_cleanup(dev);
146 drm_kms_helper_poll_fini(dev);
147 drm_mode_config_cleanup(dev);
149 drm_release_iommu_mapping(dev);
150 kfree(dev->dev_private);
152 dev->dev_private = NULL;
157 static const struct file_operations exynos_drm_gem_fops = {
158 .mmap = exynos_drm_gem_mmap_buffer,
161 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
163 struct drm_exynos_file_private *file_priv;
164 struct file *anon_filp;
167 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
171 file->driver_priv = file_priv;
173 ret = exynos_drm_subdrv_open(dev, file);
176 file->driver_priv = NULL;
179 anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
181 if (IS_ERR(anon_filp)) {
183 return PTR_ERR(anon_filp);
186 anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
187 file_priv->anon_filp = anon_filp;
192 static void exynos_drm_preclose(struct drm_device *dev,
193 struct drm_file *file)
195 exynos_drm_subdrv_close(dev, file);
198 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
200 struct exynos_drm_private *private = dev->dev_private;
201 struct drm_exynos_file_private *file_priv;
202 struct drm_pending_vblank_event *v, *vt;
203 struct drm_pending_event *e, *et;
206 if (!file->driver_priv)
209 /* Release all events not unhandled by page flip handler. */
210 spin_lock_irqsave(&dev->event_lock, flags);
211 list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
213 if (v->base.file_priv == file) {
214 list_del(&v->base.link);
215 drm_vblank_put(dev, v->pipe);
216 v->base.destroy(&v->base);
220 /* Release all events handled by page flip handler but not freed. */
221 list_for_each_entry_safe(e, et, &file->event_list, link) {
225 spin_unlock_irqrestore(&dev->event_lock, flags);
227 file_priv = file->driver_priv;
228 if (file_priv->anon_filp)
229 fput(file_priv->anon_filp);
231 kfree(file->driver_priv);
232 file->driver_priv = NULL;
235 static void exynos_drm_lastclose(struct drm_device *dev)
237 exynos_drm_fbdev_restore_mode(dev);
240 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
241 .fault = exynos_drm_gem_fault,
242 .open = drm_gem_vm_open,
243 .close = drm_gem_vm_close,
246 static const struct drm_ioctl_desc exynos_ioctls[] = {
247 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
248 DRM_UNLOCKED | DRM_AUTH),
249 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
250 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
252 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
253 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
254 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
255 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
256 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
257 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
258 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
259 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
260 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
261 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
262 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
263 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
264 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
265 exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
266 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
267 exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
268 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
269 exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
270 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
271 exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
274 static const struct file_operations exynos_drm_driver_fops = {
275 .owner = THIS_MODULE,
277 .mmap = exynos_drm_gem_mmap,
280 .unlocked_ioctl = drm_ioctl,
282 .compat_ioctl = drm_compat_ioctl,
284 .release = drm_release,
287 static struct drm_driver exynos_drm_driver = {
288 .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
289 DRIVER_GEM | DRIVER_PRIME,
290 .load = exynos_drm_load,
291 .unload = exynos_drm_unload,
292 .open = exynos_drm_open,
293 .preclose = exynos_drm_preclose,
294 .lastclose = exynos_drm_lastclose,
295 .postclose = exynos_drm_postclose,
296 .get_vblank_counter = drm_vblank_count,
297 .enable_vblank = exynos_drm_crtc_enable_vblank,
298 .disable_vblank = exynos_drm_crtc_disable_vblank,
299 .gem_free_object = exynos_drm_gem_free_object,
300 .gem_vm_ops = &exynos_drm_gem_vm_ops,
301 .dumb_create = exynos_drm_gem_dumb_create,
302 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
303 .dumb_destroy = drm_gem_dumb_destroy,
304 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
305 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
306 .gem_prime_export = exynos_dmabuf_prime_export,
307 .gem_prime_import = exynos_dmabuf_prime_import,
308 .ioctls = exynos_ioctls,
309 .num_ioctls = ARRAY_SIZE(exynos_ioctls),
310 .fops = &exynos_drm_driver_fops,
314 .major = DRIVER_MAJOR,
315 .minor = DRIVER_MINOR,
318 static int exynos_drm_platform_probe(struct platform_device *pdev)
322 ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
326 return drm_platform_init(&exynos_drm_driver, pdev);
329 static int exynos_drm_platform_remove(struct platform_device *pdev)
331 drm_put_dev(platform_get_drvdata(pdev));
336 static struct platform_driver exynos_drm_platform_driver = {
337 .probe = exynos_drm_platform_probe,
338 .remove = exynos_drm_platform_remove,
340 .owner = THIS_MODULE,
341 .name = "exynos-drm",
345 static int __init exynos_drm_init(void)
349 #ifdef CONFIG_DRM_EXYNOS_FIMD
350 ret = platform_driver_register(&fimd_driver);
355 #ifdef CONFIG_DRM_EXYNOS_HDMI
356 ret = platform_driver_register(&hdmi_driver);
359 ret = platform_driver_register(&mixer_driver);
362 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
364 goto out_common_hdmi;
366 ret = exynos_platform_device_hdmi_register();
368 goto out_common_hdmi_dev;
371 #ifdef CONFIG_DRM_EXYNOS_VIDI
372 ret = platform_driver_register(&vidi_driver);
377 #ifdef CONFIG_DRM_EXYNOS_G2D
378 ret = platform_driver_register(&g2d_driver);
383 #ifdef CONFIG_DRM_EXYNOS_FIMC
384 ret = platform_driver_register(&fimc_driver);
389 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
390 ret = platform_driver_register(&rotator_driver);
395 #ifdef CONFIG_DRM_EXYNOS_GSC
396 ret = platform_driver_register(&gsc_driver);
401 #ifdef CONFIG_DRM_EXYNOS_IPP
402 ret = platform_driver_register(&ipp_driver);
406 ret = exynos_platform_device_ipp_register();
411 ret = platform_driver_register(&exynos_drm_platform_driver);
415 exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
417 if (IS_ERR(exynos_drm_pdev)) {
418 ret = PTR_ERR(exynos_drm_pdev);
425 platform_driver_unregister(&exynos_drm_platform_driver);
428 #ifdef CONFIG_DRM_EXYNOS_IPP
429 exynos_platform_device_ipp_unregister();
431 platform_driver_unregister(&ipp_driver);
435 #ifdef CONFIG_DRM_EXYNOS_GSC
436 platform_driver_unregister(&gsc_driver);
440 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
441 platform_driver_unregister(&rotator_driver);
445 #ifdef CONFIG_DRM_EXYNOS_FIMC
446 platform_driver_unregister(&fimc_driver);
450 #ifdef CONFIG_DRM_EXYNOS_G2D
451 platform_driver_unregister(&g2d_driver);
455 #ifdef CONFIG_DRM_EXYNOS_VIDI
456 platform_driver_unregister(&vidi_driver);
460 #ifdef CONFIG_DRM_EXYNOS_HDMI
461 exynos_platform_device_hdmi_unregister();
463 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
465 platform_driver_unregister(&mixer_driver);
467 platform_driver_unregister(&hdmi_driver);
471 #ifdef CONFIG_DRM_EXYNOS_FIMD
472 platform_driver_unregister(&fimd_driver);
478 static void __exit exynos_drm_exit(void)
480 platform_device_unregister(exynos_drm_pdev);
482 platform_driver_unregister(&exynos_drm_platform_driver);
484 #ifdef CONFIG_DRM_EXYNOS_IPP
485 exynos_platform_device_ipp_unregister();
486 platform_driver_unregister(&ipp_driver);
489 #ifdef CONFIG_DRM_EXYNOS_GSC
490 platform_driver_unregister(&gsc_driver);
493 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
494 platform_driver_unregister(&rotator_driver);
497 #ifdef CONFIG_DRM_EXYNOS_FIMC
498 platform_driver_unregister(&fimc_driver);
501 #ifdef CONFIG_DRM_EXYNOS_G2D
502 platform_driver_unregister(&g2d_driver);
505 #ifdef CONFIG_DRM_EXYNOS_HDMI
506 exynos_platform_device_hdmi_unregister();
507 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
508 platform_driver_unregister(&mixer_driver);
509 platform_driver_unregister(&hdmi_driver);
512 #ifdef CONFIG_DRM_EXYNOS_VIDI
513 platform_driver_unregister(&vidi_driver);
516 #ifdef CONFIG_DRM_EXYNOS_FIMD
517 platform_driver_unregister(&fimd_driver);
521 module_init(exynos_drm_init);
522 module_exit(exynos_drm_exit);
524 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
525 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
526 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
527 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
528 MODULE_LICENSE("GPL");