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 DRM_DEBUG_DRIVER("%s\n", __FILE__);
51 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
53 DRM_ERROR("failed to allocate private\n");
57 INIT_LIST_HEAD(&private->pageflip_event_list);
58 dev->dev_private = (void *)private;
61 * create mapping to manage iommu table and set a pointer to iommu
62 * mapping structure to iommu_mapping of private data.
63 * also this iommu_mapping can be used to check if iommu is supported
66 ret = drm_create_iommu_mapping(dev);
68 DRM_ERROR("failed to create iommu mapping.\n");
72 drm_mode_config_init(dev);
74 /* init kms poll for handling hpd */
75 drm_kms_helper_poll_init(dev);
77 exynos_drm_mode_config_init(dev);
80 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
81 * without dependency of hardware.
83 for (nr = 0; nr < MAX_CRTC; nr++) {
84 ret = exynos_drm_crtc_create(dev, nr);
86 goto err_release_iommu_mapping;
89 for (nr = 0; nr < MAX_PLANE; nr++) {
90 struct drm_plane *plane;
91 unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
93 plane = exynos_plane_init(dev, possible_crtcs, false);
95 goto err_release_iommu_mapping;
98 ret = drm_vblank_init(dev, MAX_CRTC);
100 goto err_release_iommu_mapping;
103 * probe sub drivers such as display controller and hdmi driver,
104 * that were registered at probe() of platform driver
105 * to the sub driver and create encoder and connector for them.
107 ret = exynos_drm_device_register(dev);
111 /* setup possible_clones. */
112 exynos_drm_encoder_setup(dev);
115 * create and configure fb helper and also exynos specific
118 ret = exynos_drm_fbdev_init(dev);
120 DRM_ERROR("failed to initialize drm fbdev\n");
124 drm_vblank_offdelay = VBLANK_OFF_DELAY;
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 DRM_DEBUG_DRIVER("%s\n", __FILE__);
145 exynos_drm_fbdev_fini(dev);
146 exynos_drm_device_unregister(dev);
147 drm_vblank_cleanup(dev);
148 drm_kms_helper_poll_fini(dev);
149 drm_mode_config_cleanup(dev);
151 drm_release_iommu_mapping(dev);
152 kfree(dev->dev_private);
154 dev->dev_private = NULL;
159 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
161 struct drm_exynos_file_private *file_priv;
163 DRM_DEBUG_DRIVER("%s\n", __FILE__);
165 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
169 file->driver_priv = file_priv;
171 return exynos_drm_subdrv_open(dev, file);
174 static void exynos_drm_preclose(struct drm_device *dev,
175 struct drm_file *file)
177 struct exynos_drm_private *private = dev->dev_private;
178 struct drm_pending_vblank_event *e, *t;
181 DRM_DEBUG_DRIVER("%s\n", __FILE__);
183 /* release events of current file */
184 spin_lock_irqsave(&dev->event_lock, flags);
185 list_for_each_entry_safe(e, t, &private->pageflip_event_list,
187 if (e->base.file_priv == file) {
188 list_del(&e->base.link);
189 e->base.destroy(&e->base);
192 spin_unlock_irqrestore(&dev->event_lock, flags);
194 exynos_drm_subdrv_close(dev, file);
197 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
199 DRM_DEBUG_DRIVER("%s\n", __FILE__);
201 if (!file->driver_priv)
204 kfree(file->driver_priv);
205 file->driver_priv = NULL;
208 static void exynos_drm_lastclose(struct drm_device *dev)
210 DRM_DEBUG_DRIVER("%s\n", __FILE__);
212 exynos_drm_fbdev_restore_mode(dev);
215 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
216 .fault = exynos_drm_gem_fault,
217 .open = drm_gem_vm_open,
218 .close = drm_gem_vm_close,
221 static struct drm_ioctl_desc exynos_ioctls[] = {
222 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
223 DRM_UNLOCKED | DRM_AUTH),
224 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
225 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
227 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
228 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
229 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
230 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
231 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
232 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
233 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
234 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
235 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
236 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
237 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
238 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
239 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
240 exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
241 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
242 exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
243 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
244 exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
245 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
246 exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
249 static const struct file_operations exynos_drm_driver_fops = {
250 .owner = THIS_MODULE,
252 .mmap = exynos_drm_gem_mmap,
255 .unlocked_ioctl = drm_ioctl,
257 .compat_ioctl = drm_compat_ioctl,
259 .release = drm_release,
262 static struct drm_driver exynos_drm_driver = {
263 .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
264 DRIVER_GEM | DRIVER_PRIME,
265 .load = exynos_drm_load,
266 .unload = exynos_drm_unload,
267 .open = exynos_drm_open,
268 .preclose = exynos_drm_preclose,
269 .lastclose = exynos_drm_lastclose,
270 .postclose = exynos_drm_postclose,
271 .get_vblank_counter = drm_vblank_count,
272 .enable_vblank = exynos_drm_crtc_enable_vblank,
273 .disable_vblank = exynos_drm_crtc_disable_vblank,
274 .gem_init_object = exynos_drm_gem_init_object,
275 .gem_free_object = exynos_drm_gem_free_object,
276 .gem_vm_ops = &exynos_drm_gem_vm_ops,
277 .dumb_create = exynos_drm_gem_dumb_create,
278 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
279 .dumb_destroy = exynos_drm_gem_dumb_destroy,
280 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
281 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
282 .gem_prime_export = exynos_dmabuf_prime_export,
283 .gem_prime_import = exynos_dmabuf_prime_import,
284 .ioctls = exynos_ioctls,
285 .fops = &exynos_drm_driver_fops,
289 .major = DRIVER_MAJOR,
290 .minor = DRIVER_MINOR,
293 static int exynos_drm_platform_probe(struct platform_device *pdev)
295 DRM_DEBUG_DRIVER("%s\n", __FILE__);
297 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
298 exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
300 return drm_platform_init(&exynos_drm_driver, pdev);
303 static int exynos_drm_platform_remove(struct platform_device *pdev)
305 DRM_DEBUG_DRIVER("%s\n", __FILE__);
307 drm_platform_exit(&exynos_drm_driver, pdev);
312 static struct platform_driver exynos_drm_platform_driver = {
313 .probe = exynos_drm_platform_probe,
314 .remove = exynos_drm_platform_remove,
316 .owner = THIS_MODULE,
317 .name = "exynos-drm",
321 static int __init exynos_drm_init(void)
325 DRM_DEBUG_DRIVER("%s\n", __FILE__);
327 #ifdef CONFIG_DRM_EXYNOS_FIMD
328 ret = platform_driver_register(&fimd_driver);
333 #ifdef CONFIG_DRM_EXYNOS_HDMI
334 ret = platform_driver_register(&hdmi_driver);
337 ret = platform_driver_register(&mixer_driver);
340 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
342 goto out_common_hdmi;
344 ret = exynos_platform_device_hdmi_register();
346 goto out_common_hdmi_dev;
349 #ifdef CONFIG_DRM_EXYNOS_VIDI
350 ret = platform_driver_register(&vidi_driver);
355 #ifdef CONFIG_DRM_EXYNOS_G2D
356 ret = platform_driver_register(&g2d_driver);
361 #ifdef CONFIG_DRM_EXYNOS_FIMC
362 ret = platform_driver_register(&fimc_driver);
367 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
368 ret = platform_driver_register(&rotator_driver);
373 #ifdef CONFIG_DRM_EXYNOS_GSC
374 ret = platform_driver_register(&gsc_driver);
379 #ifdef CONFIG_DRM_EXYNOS_IPP
380 ret = platform_driver_register(&ipp_driver);
384 ret = exynos_platform_device_ipp_register();
389 ret = platform_driver_register(&exynos_drm_platform_driver);
393 exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
395 if (IS_ERR(exynos_drm_pdev)) {
396 ret = PTR_ERR(exynos_drm_pdev);
403 platform_driver_unregister(&exynos_drm_platform_driver);
406 #ifdef CONFIG_DRM_EXYNOS_IPP
407 exynos_platform_device_ipp_unregister();
409 platform_driver_unregister(&ipp_driver);
413 #ifdef CONFIG_DRM_EXYNOS_GSC
414 platform_driver_unregister(&gsc_driver);
418 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
419 platform_driver_unregister(&rotator_driver);
423 #ifdef CONFIG_DRM_EXYNOS_FIMC
424 platform_driver_unregister(&fimc_driver);
428 #ifdef CONFIG_DRM_EXYNOS_G2D
429 platform_driver_unregister(&g2d_driver);
433 #ifdef CONFIG_DRM_EXYNOS_VIDI
434 platform_driver_unregister(&vidi_driver);
438 #ifdef CONFIG_DRM_EXYNOS_HDMI
439 exynos_platform_device_hdmi_unregister();
441 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
443 platform_driver_unregister(&mixer_driver);
445 platform_driver_unregister(&hdmi_driver);
449 #ifdef CONFIG_DRM_EXYNOS_FIMD
450 platform_driver_unregister(&fimd_driver);
456 static void __exit exynos_drm_exit(void)
458 DRM_DEBUG_DRIVER("%s\n", __FILE__);
460 platform_device_unregister(exynos_drm_pdev);
462 platform_driver_unregister(&exynos_drm_platform_driver);
464 #ifdef CONFIG_DRM_EXYNOS_IPP
465 exynos_platform_device_ipp_unregister();
466 platform_driver_unregister(&ipp_driver);
469 #ifdef CONFIG_DRM_EXYNOS_GSC
470 platform_driver_unregister(&gsc_driver);
473 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
474 platform_driver_unregister(&rotator_driver);
477 #ifdef CONFIG_DRM_EXYNOS_FIMC
478 platform_driver_unregister(&fimc_driver);
481 #ifdef CONFIG_DRM_EXYNOS_G2D
482 platform_driver_unregister(&g2d_driver);
485 #ifdef CONFIG_DRM_EXYNOS_HDMI
486 exynos_platform_device_hdmi_unregister();
487 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
488 platform_driver_unregister(&mixer_driver);
489 platform_driver_unregister(&hdmi_driver);
492 #ifdef CONFIG_DRM_EXYNOS_VIDI
493 platform_driver_unregister(&vidi_driver);
496 #ifdef CONFIG_DRM_EXYNOS_FIMD
497 platform_driver_unregister(&fimd_driver);
501 module_init(exynos_drm_init);
502 module_exit(exynos_drm_exit);
504 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
505 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
506 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
507 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
508 MODULE_LICENSE("GPL");