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"
44 #define DRIVER_NAME "exynos"
45 #define DRIVER_DESC "Samsung SoC DRM"
46 #define DRIVER_DATE "20110530"
47 #define DRIVER_MAJOR 1
48 #define DRIVER_MINOR 0
50 #define VBLANK_OFF_DELAY 50000
52 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
54 struct exynos_drm_private *private;
58 DRM_DEBUG_DRIVER("%s\n", __FILE__);
60 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
62 DRM_ERROR("failed to allocate private\n");
66 INIT_LIST_HEAD(&private->pageflip_event_list);
67 dev->dev_private = (void *)private;
69 drm_mode_config_init(dev);
71 /* init kms poll for handling hpd */
72 drm_kms_helper_poll_init(dev);
74 exynos_drm_mode_config_init(dev);
77 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
78 * without dependency of hardware.
80 for (nr = 0; nr < MAX_CRTC; nr++) {
81 ret = exynos_drm_crtc_create(dev, nr);
86 for (nr = 0; nr < MAX_PLANE; nr++) {
87 struct drm_plane *plane;
88 unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
90 plane = exynos_plane_init(dev, possible_crtcs, false);
95 ret = drm_vblank_init(dev, MAX_CRTC);
100 * probe sub drivers such as display controller and hdmi driver,
101 * that were registered at probe() of platform driver
102 * to the sub driver and create encoder and connector for them.
104 ret = exynos_drm_device_register(dev);
108 /* setup possible_clones. */
109 exynos_drm_encoder_setup(dev);
112 * create and configure fb helper and also exynos specific
115 ret = exynos_drm_fbdev_init(dev);
117 DRM_ERROR("failed to initialize drm fbdev\n");
121 drm_vblank_offdelay = VBLANK_OFF_DELAY;
126 exynos_drm_device_unregister(dev);
128 drm_vblank_cleanup(dev);
130 drm_mode_config_cleanup(dev);
136 static int exynos_drm_unload(struct drm_device *dev)
138 DRM_DEBUG_DRIVER("%s\n", __FILE__);
140 exynos_drm_fbdev_fini(dev);
141 exynos_drm_device_unregister(dev);
142 drm_vblank_cleanup(dev);
143 drm_kms_helper_poll_fini(dev);
144 drm_mode_config_cleanup(dev);
145 kfree(dev->dev_private);
147 dev->dev_private = NULL;
152 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
154 struct drm_exynos_file_private *file_priv;
156 DRM_DEBUG_DRIVER("%s\n", __FILE__);
158 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
162 file->driver_priv = file_priv;
164 return exynos_drm_subdrv_open(dev, file);
167 static void exynos_drm_preclose(struct drm_device *dev,
168 struct drm_file *file)
170 struct exynos_drm_private *private = dev->dev_private;
171 struct drm_pending_vblank_event *e, *t;
174 DRM_DEBUG_DRIVER("%s\n", __FILE__);
176 /* release events of current file */
177 spin_lock_irqsave(&dev->event_lock, flags);
178 list_for_each_entry_safe(e, t, &private->pageflip_event_list,
180 if (e->base.file_priv == file) {
181 list_del(&e->base.link);
182 e->base.destroy(&e->base);
185 spin_unlock_irqrestore(&dev->event_lock, flags);
187 exynos_drm_subdrv_close(dev, file);
190 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
192 DRM_DEBUG_DRIVER("%s\n", __FILE__);
194 if (!file->driver_priv)
197 kfree(file->driver_priv);
198 file->driver_priv = NULL;
201 static void exynos_drm_lastclose(struct drm_device *dev)
203 DRM_DEBUG_DRIVER("%s\n", __FILE__);
205 exynos_drm_fbdev_restore_mode(dev);
208 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
209 .fault = exynos_drm_gem_fault,
210 .open = drm_gem_vm_open,
211 .close = drm_gem_vm_close,
214 static struct drm_ioctl_desc exynos_ioctls[] = {
215 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
216 DRM_UNLOCKED | DRM_AUTH),
217 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
218 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
220 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
221 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
222 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
223 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
224 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
225 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
226 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
227 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
228 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
229 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
230 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
231 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
234 static const struct file_operations exynos_drm_driver_fops = {
235 .owner = THIS_MODULE,
237 .mmap = exynos_drm_gem_mmap,
240 .unlocked_ioctl = drm_ioctl,
242 .compat_ioctl = drm_compat_ioctl,
244 .release = drm_release,
247 static struct drm_driver exynos_drm_driver = {
248 .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
249 DRIVER_GEM | DRIVER_PRIME,
250 .load = exynos_drm_load,
251 .unload = exynos_drm_unload,
252 .open = exynos_drm_open,
253 .preclose = exynos_drm_preclose,
254 .lastclose = exynos_drm_lastclose,
255 .postclose = exynos_drm_postclose,
256 .get_vblank_counter = drm_vblank_count,
257 .enable_vblank = exynos_drm_crtc_enable_vblank,
258 .disable_vblank = exynos_drm_crtc_disable_vblank,
259 .gem_init_object = exynos_drm_gem_init_object,
260 .gem_free_object = exynos_drm_gem_free_object,
261 .gem_vm_ops = &exynos_drm_gem_vm_ops,
262 .dumb_create = exynos_drm_gem_dumb_create,
263 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
264 .dumb_destroy = exynos_drm_gem_dumb_destroy,
265 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
266 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
267 .gem_prime_export = exynos_dmabuf_prime_export,
268 .gem_prime_import = exynos_dmabuf_prime_import,
269 .ioctls = exynos_ioctls,
270 .fops = &exynos_drm_driver_fops,
274 .major = DRIVER_MAJOR,
275 .minor = DRIVER_MINOR,
278 static int exynos_drm_platform_probe(struct platform_device *pdev)
280 DRM_DEBUG_DRIVER("%s\n", __FILE__);
282 exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
284 return drm_platform_init(&exynos_drm_driver, pdev);
287 static int exynos_drm_platform_remove(struct platform_device *pdev)
289 DRM_DEBUG_DRIVER("%s\n", __FILE__);
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 = __devexit_p(exynos_drm_platform_remove),
300 .owner = THIS_MODULE,
301 .name = "exynos-drm",
305 static int __init exynos_drm_init(void)
309 DRM_DEBUG_DRIVER("%s\n", __FILE__);
311 #ifdef CONFIG_DRM_EXYNOS_FIMD
312 ret = platform_driver_register(&fimd_driver);
317 #ifdef CONFIG_DRM_EXYNOS_HDMI
318 ret = platform_driver_register(&hdmi_driver);
321 ret = platform_driver_register(&mixer_driver);
324 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
326 goto out_common_hdmi;
329 #ifdef CONFIG_DRM_EXYNOS_VIDI
330 ret = platform_driver_register(&vidi_driver);
335 #ifdef CONFIG_DRM_EXYNOS_G2D
336 ret = platform_driver_register(&g2d_driver);
341 ret = platform_driver_register(&exynos_drm_platform_driver);
348 #ifdef CONFIG_DRM_EXYNOS_G2D
349 platform_driver_unregister(&g2d_driver);
353 #ifdef CONFIG_DRM_EXYNOS_VIDI
355 platform_driver_unregister(&vidi_driver);
358 #ifdef CONFIG_DRM_EXYNOS_HDMI
359 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
361 platform_driver_unregister(&mixer_driver);
363 platform_driver_unregister(&hdmi_driver);
367 #ifdef CONFIG_DRM_EXYNOS_FIMD
368 platform_driver_unregister(&fimd_driver);
374 static void __exit exynos_drm_exit(void)
376 DRM_DEBUG_DRIVER("%s\n", __FILE__);
378 platform_driver_unregister(&exynos_drm_platform_driver);
380 #ifdef CONFIG_DRM_EXYNOS_G2D
381 platform_driver_unregister(&g2d_driver);
384 #ifdef CONFIG_DRM_EXYNOS_HDMI
385 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
386 platform_driver_unregister(&mixer_driver);
387 platform_driver_unregister(&hdmi_driver);
390 #ifdef CONFIG_DRM_EXYNOS_VIDI
391 platform_driver_unregister(&vidi_driver);
394 #ifdef CONFIG_DRM_EXYNOS_FIMD
395 platform_driver_unregister(&fimd_driver);
399 module_init(exynos_drm_init);
400 module_exit(exynos_drm_exit);
402 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
403 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
404 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
405 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
406 MODULE_LICENSE("GPL");