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);
51 DRM_ERROR("failed to allocate private\n");
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;
127 exynos_drm_device_unregister(dev);
129 drm_vblank_cleanup(dev);
130 err_release_iommu_mapping:
131 drm_release_iommu_mapping(dev);
133 drm_mode_config_cleanup(dev);
139 static int exynos_drm_unload(struct drm_device *dev)
141 exynos_drm_fbdev_fini(dev);
142 exynos_drm_device_unregister(dev);
143 drm_vblank_cleanup(dev);
144 drm_kms_helper_poll_fini(dev);
145 drm_mode_config_cleanup(dev);
147 drm_release_iommu_mapping(dev);
148 kfree(dev->dev_private);
150 dev->dev_private = NULL;
155 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
157 struct drm_exynos_file_private *file_priv;
159 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
163 file->driver_priv = file_priv;
165 return exynos_drm_subdrv_open(dev, file);
168 static void exynos_drm_preclose(struct drm_device *dev,
169 struct drm_file *file)
171 struct exynos_drm_private *private = dev->dev_private;
172 struct drm_pending_vblank_event *e, *t;
175 /* release events of current file */
176 spin_lock_irqsave(&dev->event_lock, flags);
177 list_for_each_entry_safe(e, t, &private->pageflip_event_list,
179 if (e->base.file_priv == file) {
180 list_del(&e->base.link);
181 e->base.destroy(&e->base);
184 spin_unlock_irqrestore(&dev->event_lock, flags);
186 exynos_drm_subdrv_close(dev, file);
189 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
191 if (!file->driver_priv)
194 kfree(file->driver_priv);
195 file->driver_priv = NULL;
198 static void exynos_drm_lastclose(struct drm_device *dev)
200 exynos_drm_fbdev_restore_mode(dev);
203 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
204 .fault = exynos_drm_gem_fault,
205 .open = drm_gem_vm_open,
206 .close = drm_gem_vm_close,
209 static struct drm_ioctl_desc exynos_ioctls[] = {
210 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
211 DRM_UNLOCKED | DRM_AUTH),
212 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
213 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
215 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
216 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
217 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
218 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
219 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
220 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
221 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
222 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
223 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
224 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
225 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
226 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
227 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
228 exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
229 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
230 exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
231 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
232 exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
233 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
234 exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
237 static const struct file_operations exynos_drm_driver_fops = {
238 .owner = THIS_MODULE,
240 .mmap = exynos_drm_gem_mmap,
243 .unlocked_ioctl = drm_ioctl,
245 .compat_ioctl = drm_compat_ioctl,
247 .release = drm_release,
250 static struct drm_driver exynos_drm_driver = {
251 .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
252 DRIVER_GEM | DRIVER_PRIME,
253 .load = exynos_drm_load,
254 .unload = exynos_drm_unload,
255 .open = exynos_drm_open,
256 .preclose = exynos_drm_preclose,
257 .lastclose = exynos_drm_lastclose,
258 .postclose = exynos_drm_postclose,
259 .get_vblank_counter = drm_vblank_count,
260 .enable_vblank = exynos_drm_crtc_enable_vblank,
261 .disable_vblank = exynos_drm_crtc_disable_vblank,
262 .gem_init_object = exynos_drm_gem_init_object,
263 .gem_free_object = exynos_drm_gem_free_object,
264 .gem_vm_ops = &exynos_drm_gem_vm_ops,
265 .dumb_create = exynos_drm_gem_dumb_create,
266 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
267 .dumb_destroy = exynos_drm_gem_dumb_destroy,
268 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
269 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
270 .gem_prime_export = exynos_dmabuf_prime_export,
271 .gem_prime_import = exynos_dmabuf_prime_import,
272 .ioctls = exynos_ioctls,
273 .fops = &exynos_drm_driver_fops,
277 .major = DRIVER_MAJOR,
278 .minor = DRIVER_MINOR,
281 static int exynos_drm_platform_probe(struct platform_device *pdev)
283 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
284 exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
286 return drm_platform_init(&exynos_drm_driver, pdev);
289 static int exynos_drm_platform_remove(struct platform_device *pdev)
291 drm_platform_exit(&exynos_drm_driver, pdev);
296 static struct platform_driver exynos_drm_platform_driver = {
297 .probe = exynos_drm_platform_probe,
298 .remove = exynos_drm_platform_remove,
300 .owner = THIS_MODULE,
301 .name = "exynos-drm",
305 static int __init exynos_drm_init(void)
309 #ifdef CONFIG_DRM_EXYNOS_FIMD
310 ret = platform_driver_register(&fimd_driver);
315 #ifdef CONFIG_DRM_EXYNOS_HDMI
316 ret = platform_driver_register(&hdmi_driver);
319 ret = platform_driver_register(&mixer_driver);
322 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
324 goto out_common_hdmi;
326 ret = exynos_platform_device_hdmi_register();
328 goto out_common_hdmi_dev;
331 #ifdef CONFIG_DRM_EXYNOS_VIDI
332 ret = platform_driver_register(&vidi_driver);
337 #ifdef CONFIG_DRM_EXYNOS_G2D
338 ret = platform_driver_register(&g2d_driver);
343 #ifdef CONFIG_DRM_EXYNOS_FIMC
344 ret = platform_driver_register(&fimc_driver);
349 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
350 ret = platform_driver_register(&rotator_driver);
355 #ifdef CONFIG_DRM_EXYNOS_GSC
356 ret = platform_driver_register(&gsc_driver);
361 #ifdef CONFIG_DRM_EXYNOS_IPP
362 ret = platform_driver_register(&ipp_driver);
366 ret = exynos_platform_device_ipp_register();
371 ret = platform_driver_register(&exynos_drm_platform_driver);
375 exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
377 if (IS_ERR(exynos_drm_pdev)) {
378 ret = PTR_ERR(exynos_drm_pdev);
385 platform_driver_unregister(&exynos_drm_platform_driver);
388 #ifdef CONFIG_DRM_EXYNOS_IPP
389 exynos_platform_device_ipp_unregister();
391 platform_driver_unregister(&ipp_driver);
395 #ifdef CONFIG_DRM_EXYNOS_GSC
396 platform_driver_unregister(&gsc_driver);
400 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
401 platform_driver_unregister(&rotator_driver);
405 #ifdef CONFIG_DRM_EXYNOS_FIMC
406 platform_driver_unregister(&fimc_driver);
410 #ifdef CONFIG_DRM_EXYNOS_G2D
411 platform_driver_unregister(&g2d_driver);
415 #ifdef CONFIG_DRM_EXYNOS_VIDI
416 platform_driver_unregister(&vidi_driver);
420 #ifdef CONFIG_DRM_EXYNOS_HDMI
421 exynos_platform_device_hdmi_unregister();
423 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
425 platform_driver_unregister(&mixer_driver);
427 platform_driver_unregister(&hdmi_driver);
431 #ifdef CONFIG_DRM_EXYNOS_FIMD
432 platform_driver_unregister(&fimd_driver);
438 static void __exit exynos_drm_exit(void)
440 platform_device_unregister(exynos_drm_pdev);
442 platform_driver_unregister(&exynos_drm_platform_driver);
444 #ifdef CONFIG_DRM_EXYNOS_IPP
445 exynos_platform_device_ipp_unregister();
446 platform_driver_unregister(&ipp_driver);
449 #ifdef CONFIG_DRM_EXYNOS_GSC
450 platform_driver_unregister(&gsc_driver);
453 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
454 platform_driver_unregister(&rotator_driver);
457 #ifdef CONFIG_DRM_EXYNOS_FIMC
458 platform_driver_unregister(&fimc_driver);
461 #ifdef CONFIG_DRM_EXYNOS_G2D
462 platform_driver_unregister(&g2d_driver);
465 #ifdef CONFIG_DRM_EXYNOS_HDMI
466 exynos_platform_device_hdmi_unregister();
467 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
468 platform_driver_unregister(&mixer_driver);
469 platform_driver_unregister(&hdmi_driver);
472 #ifdef CONFIG_DRM_EXYNOS_VIDI
473 platform_driver_unregister(&vidi_driver);
476 #ifdef CONFIG_DRM_EXYNOS_FIMD
477 platform_driver_unregister(&fimd_driver);
481 module_init(exynos_drm_init);
482 module_exit(exynos_drm_exit);
484 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
485 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
486 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
487 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
488 MODULE_LICENSE("GPL");