[deliverable/linux.git] / drivers / gpu / drm / exynos / exynos_drm_drv.c

/*
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 * Authors:
 *	Inki Dae <inki.dae@samsung.com>
 *	Joonyoung Shim <jy0922.shim@samsung.com>
 *	Seung-Woo Kim <sw0312.kim@samsung.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include "drmP.h"
#include "drm.h"
#include "drm_crtc_helper.h"

#include <drm/exynos_drm.h>

#include "exynos_drm_drv.h"
#include "exynos_drm_crtc.h"
#include "exynos_drm_encoder.h"
#include "exynos_drm_fbdev.h"
#include "exynos_drm_fb.h"
#include "exynos_drm_gem.h"
#include "exynos_drm_plane.h"

#define DRIVER_NAME	"exynos"
#define DRIVER_DESC	"Samsung SoC DRM"
#define DRIVER_DATE	"20110530"
#define DRIVER_MAJOR	1
#define DRIVER_MINOR	0

#define VBLANK_OFF_DELAY	50000

static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
{
	struct exynos_drm_private *private;
	int ret;
	int nr;

	DRM_DEBUG_DRIVER("%s\n", __FILE__);

	private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
	if (!private) {
		DRM_ERROR("failed to allocate private\n");
		return -ENOMEM;
	}

	INIT_LIST_HEAD(&private->pageflip_event_list);
	dev->dev_private = (void *)private;

	drm_mode_config_init(dev);

	/* init kms poll for handling hpd */
	drm_kms_helper_poll_init(dev);

	exynos_drm_mode_config_init(dev);

	/*
	 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
	 * without dependency of hardware.
	 */
	for (nr = 0; nr < MAX_CRTC; nr++) {
		ret = exynos_drm_crtc_create(dev, nr);
		if (ret)
			goto err_crtc;
	}

	for (nr = 0; nr < MAX_PLANE; nr++) {
		ret = exynos_plane_init(dev, nr);
		if (ret)
			goto err_crtc;
	}

	ret = drm_vblank_init(dev, MAX_CRTC);
	if (ret)
		goto err_crtc;

	/*
	 * probe sub drivers such as display controller and hdmi driver,
	 * that were registered at probe() of platform driver
	 * to the sub driver and create encoder and connector for them.
	 */
	ret = exynos_drm_device_register(dev);
	if (ret)
		goto err_vblank;

	/* setup possible_clones. */
	exynos_drm_encoder_setup(dev);

	/*
	 * create and configure fb helper and also exynos specific
	 * fbdev object.
	 */
	ret = exynos_drm_fbdev_init(dev);
	if (ret) {
		DRM_ERROR("failed to initialize drm fbdev\n");
		goto err_drm_device;
	}

	drm_vblank_offdelay = VBLANK_OFF_DELAY;

	return 0;

err_drm_device:
	exynos_drm_device_unregister(dev);
err_vblank:
	drm_vblank_cleanup(dev);
err_crtc:
	drm_mode_config_cleanup(dev);
	kfree(private);

	return ret;
}

static int exynos_drm_unload(struct drm_device *dev)
{
	DRM_DEBUG_DRIVER("%s\n", __FILE__);

	exynos_drm_fbdev_fini(dev);
	exynos_drm_device_unregister(dev);
	drm_vblank_cleanup(dev);
	drm_kms_helper_poll_fini(dev);
	drm_mode_config_cleanup(dev);
	kfree(dev->dev_private);

	dev->dev_private = NULL;

	return 0;
}

static void exynos_drm_preclose(struct drm_device *dev,
					struct drm_file *file)
{
	DRM_DEBUG_DRIVER("%s\n", __FILE__);

}

static void exynos_drm_lastclose(struct drm_device *dev)
{
	DRM_DEBUG_DRIVER("%s\n", __FILE__);

	exynos_drm_fbdev_restore_mode(dev);
}

static struct vm_operations_struct exynos_drm_gem_vm_ops = {
	.fault = exynos_drm_gem_fault,
	.open = drm_gem_vm_open,
	.close = drm_gem_vm_close,
};

static struct drm_ioctl_desc exynos_ioctls[] = {
	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
			DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
			exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
			DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
			exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
	DRM_IOCTL_DEF_DRV(EXYNOS_PLANE_SET_ZPOS, exynos_plane_set_zpos_ioctl,
			DRM_UNLOCKED | DRM_AUTH),
};

static const struct file_operations exynos_drm_driver_fops = {
	.owner		= THIS_MODULE,
	.open		= drm_open,
	.mmap		= exynos_drm_gem_mmap,
	.poll		= drm_poll,
	.read		= drm_read,
	.unlocked_ioctl	= drm_ioctl,
	.release	= drm_release,
};

static struct drm_driver exynos_drm_driver = {
	.driver_features	= DRIVER_HAVE_IRQ | DRIVER_BUS_PLATFORM |
				  DRIVER_MODESET | DRIVER_GEM,
	.load			= exynos_drm_load,
	.unload			= exynos_drm_unload,
	.preclose		= exynos_drm_preclose,
	.lastclose		= exynos_drm_lastclose,
	.get_vblank_counter	= drm_vblank_count,
	.enable_vblank		= exynos_drm_crtc_enable_vblank,
	.disable_vblank		= exynos_drm_crtc_disable_vblank,
	.gem_init_object	= exynos_drm_gem_init_object,
	.gem_free_object	= exynos_drm_gem_free_object,
	.gem_vm_ops		= &exynos_drm_gem_vm_ops,
	.dumb_create		= exynos_drm_gem_dumb_create,
	.dumb_map_offset	= exynos_drm_gem_dumb_map_offset,
	.dumb_destroy		= exynos_drm_gem_dumb_destroy,
	.ioctls			= exynos_ioctls,
	.fops			= &exynos_drm_driver_fops,
	.name	= DRIVER_NAME,
	.desc	= DRIVER_DESC,
	.date	= DRIVER_DATE,
	.major	= DRIVER_MAJOR,
	.minor	= DRIVER_MINOR,
};

static int exynos_drm_platform_probe(struct platform_device *pdev)
{
	DRM_DEBUG_DRIVER("%s\n", __FILE__);

	exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);

	return drm_platform_init(&exynos_drm_driver, pdev);
}

static int exynos_drm_platform_remove(struct platform_device *pdev)
{
	DRM_DEBUG_DRIVER("%s\n", __FILE__);

	drm_platform_exit(&exynos_drm_driver, pdev);

	return 0;
}

static struct platform_driver exynos_drm_platform_driver = {
	.probe		= exynos_drm_platform_probe,
	.remove		= __devexit_p(exynos_drm_platform_remove),
	.driver		= {
		.owner	= THIS_MODULE,
		.name	= DRIVER_NAME,
	},
};

static int __init exynos_drm_init(void)
{
	DRM_DEBUG_DRIVER("%s\n", __FILE__);

	return platform_driver_register(&exynos_drm_platform_driver);
}

static void __exit exynos_drm_exit(void)
{
	DRM_DEBUG_DRIVER("%s\n", __FILE__);

	platform_driver_unregister(&exynos_drm_platform_driver);
}

module_init(exynos_drm_init);
module_exit(exynos_drm_exit);

MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
MODULE_DESCRIPTION("Samsung SoC DRM Driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
1c248b7d ID	1	/*
	2	* Copyright (c) 2011 Samsung Electronics Co., Ltd.
	3	* Authors:
	4	* Inki Dae <inki.dae@samsung.com>
	5	* Joonyoung Shim <jy0922.shim@samsung.com>
	6	* Seung-Woo Kim <sw0312.kim@samsung.com>
	7	*
	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:
	14	*
	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
	17	* Software.
	18	*
	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.
	26	*/
	27
	28	#include "drmP.h"
	29	#include "drm.h"
7db3eba6	30	#include "drm_crtc_helper.h"
1c248b7d ID	31
	32	#include <drm/exynos_drm.h>
	33
	34	#include "exynos_drm_drv.h"
	35	#include "exynos_drm_crtc.h"
d081f566	36	#include "exynos_drm_encoder.h"
1c248b7d ID	37	#include "exynos_drm_fbdev.h"
	38	#include "exynos_drm_fb.h"
	39	#include "exynos_drm_gem.h"
864ee9e6	40	#include "exynos_drm_plane.h"
1c248b7d	41
0edf9936	42	#define DRIVER_NAME "exynos"
1c248b7d ID	43	#define DRIVER_DESC "Samsung SoC DRM"
	44	#define DRIVER_DATE "20110530"
	45	#define DRIVER_MAJOR 1
	46	#define DRIVER_MINOR 0
	47
52c68814 ID	48	#define VBLANK_OFF_DELAY 50000
52c68814 ID	49
1c248b7d ID	50	static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
	51	{
	52	struct exynos_drm_private *private;
	53	int ret;
	54	int nr;
	55
	56	DRM_DEBUG_DRIVER("%s\n", __FILE__);
	57
	58	private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
	59	if (!private) {
	60	DRM_ERROR("failed to allocate private\n");
	61	return -ENOMEM;
	62	}
	63
	64	INIT_LIST_HEAD(&private->pageflip_event_list);
	65	dev->dev_private = (void *)private;
	66
	67	drm_mode_config_init(dev);
	68
7db3eba6 SWK	69	/* init kms poll for handling hpd */
	70	drm_kms_helper_poll_init(dev);
	71
1c248b7d ID	72	exynos_drm_mode_config_init(dev);
	73
	74	/*
	75	* EXYNOS4 is enough to have two CRTCs and each crtc would be used
	76	* without dependency of hardware.
	77	*/
	78	for (nr = 0; nr < MAX_CRTC; nr++) {
	79	ret = exynos_drm_crtc_create(dev, nr);
	80	if (ret)
	81	goto err_crtc;
	82	}
	83
864ee9e6 JS	84	for (nr = 0; nr < MAX_PLANE; nr++) {
	85	ret = exynos_plane_init(dev, nr);
	86	if (ret)
	87	goto err_crtc;
	88	}
	89
1c248b7d ID	90	ret = drm_vblank_init(dev, MAX_CRTC);
	91	if (ret)
	92	goto err_crtc;
	93
	94	/*
	95	* probe sub drivers such as display controller and hdmi driver,
	96	* that were registered at probe() of platform driver
	97	* to the sub driver and create encoder and connector for them.
	98	*/
	99	ret = exynos_drm_device_register(dev);
	100	if (ret)
	101	goto err_vblank;
	102
d081f566 ID	103	/* setup possible_clones. */
	104	exynos_drm_encoder_setup(dev);
	105
1c248b7d ID	106	/*
	107	* create and configure fb helper and also exynos specific
	108	* fbdev object.
	109	*/
	110	ret = exynos_drm_fbdev_init(dev);
	111	if (ret) {
	112	DRM_ERROR("failed to initialize drm fbdev\n");
	113	goto err_drm_device;
	114	}
	115
52c68814 ID	116	drm_vblank_offdelay = VBLANK_OFF_DELAY;
52c68814 ID	117
1c248b7d ID	118	return 0;
	119
	120	err_drm_device:
	121	exynos_drm_device_unregister(dev);
	122	err_vblank:
	123	drm_vblank_cleanup(dev);
	124	err_crtc:
	125	drm_mode_config_cleanup(dev);
	126	kfree(private);
	127
	128	return ret;
	129	}
	130
	131	static int exynos_drm_unload(struct drm_device *dev)
	132	{
	133	DRM_DEBUG_DRIVER("%s\n", __FILE__);
	134
	135	exynos_drm_fbdev_fini(dev);
	136	exynos_drm_device_unregister(dev);
	137	drm_vblank_cleanup(dev);
7db3eba6	138	drm_kms_helper_poll_fini(dev);
1c248b7d ID	139	drm_mode_config_cleanup(dev);
	140	kfree(dev->dev_private);
	141
	142	dev->dev_private = NULL;
	143
	144	return 0;
	145	}
	146
ccf4d883	147	static void exynos_drm_preclose(struct drm_device *dev,
6f811502	148	struct drm_file *file)
ccf4d883	149	{
6f811502	150	DRM_DEBUG_DRIVER("%s\n", __FILE__);
ccf4d883	151
ccf4d883 ID	152	}
ccf4d883 ID	153
1c248b7d ID	154	static void exynos_drm_lastclose(struct drm_device *dev)
	155	{
	156	DRM_DEBUG_DRIVER("%s\n", __FILE__);
	157
	158	exynos_drm_fbdev_restore_mode(dev);
	159	}
	160
	161	static struct vm_operations_struct exynos_drm_gem_vm_ops = {
	162	.fault = exynos_drm_gem_fault,
	163	.open = drm_gem_vm_open,
	164	.close = drm_gem_vm_close,
	165	};
	166
	167	static struct drm_ioctl_desc exynos_ioctls[] = {
	168	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
	169	DRM_UNLOCKED \| DRM_AUTH),
	170	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
	171	exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED \|
	172	DRM_AUTH),
	173	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
	174	exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED \| DRM_AUTH),
864ee9e6 JS	175	DRM_IOCTL_DEF_DRV(EXYNOS_PLANE_SET_ZPOS, exynos_plane_set_zpos_ioctl,
864ee9e6 JS	176	DRM_UNLOCKED \| DRM_AUTH),
1c248b7d ID	177	};
1c248b7d ID	178
ac2bdf73 JS	179	static const struct file_operations exynos_drm_driver_fops = {
	180	.owner = THIS_MODULE,
	181	.open = drm_open,
	182	.mmap = exynos_drm_gem_mmap,
	183	.poll = drm_poll,
	184	.read = drm_read,
	185	.unlocked_ioctl = drm_ioctl,
	186	.release = drm_release,
	187	};
	188
1c248b7d ID	189	static struct drm_driver exynos_drm_driver = {
	190	.driver_features = DRIVER_HAVE_IRQ \| DRIVER_BUS_PLATFORM \|
	191	DRIVER_MODESET \| DRIVER_GEM,
	192	.load = exynos_drm_load,
	193	.unload = exynos_drm_unload,
ccf4d883	194	.preclose = exynos_drm_preclose,
1c248b7d ID	195	.lastclose = exynos_drm_lastclose,
	196	.get_vblank_counter = drm_vblank_count,
	197	.enable_vblank = exynos_drm_crtc_enable_vblank,
	198	.disable_vblank = exynos_drm_crtc_disable_vblank,
	199	.gem_init_object = exynos_drm_gem_init_object,
	200	.gem_free_object = exynos_drm_gem_free_object,
	201	.gem_vm_ops = &exynos_drm_gem_vm_ops,
	202	.dumb_create = exynos_drm_gem_dumb_create,
	203	.dumb_map_offset = exynos_drm_gem_dumb_map_offset,
	204	.dumb_destroy = exynos_drm_gem_dumb_destroy,
	205	.ioctls = exynos_ioctls,
ac2bdf73	206	.fops = &exynos_drm_driver_fops,
1c248b7d ID	207	.name = DRIVER_NAME,
	208	.desc = DRIVER_DESC,
	209	.date = DRIVER_DATE,
	210	.major = DRIVER_MAJOR,
	211	.minor = DRIVER_MINOR,
	212	};
	213
	214	static int exynos_drm_platform_probe(struct platform_device *pdev)
	215	{
	216	DRM_DEBUG_DRIVER("%s\n", __FILE__);
	217
	218	exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
	219
	220	return drm_platform_init(&exynos_drm_driver, pdev);
	221	}
	222
	223	static int exynos_drm_platform_remove(struct platform_device *pdev)
	224	{
	225	DRM_DEBUG_DRIVER("%s\n", __FILE__);
	226
	227	drm_platform_exit(&exynos_drm_driver, pdev);
	228
	229	return 0;
	230	}
	231
	232	static struct platform_driver exynos_drm_platform_driver = {
	233	.probe = exynos_drm_platform_probe,
	234	.remove = __devexit_p(exynos_drm_platform_remove),
	235	.driver = {
	236	.owner = THIS_MODULE,
	237	.name = DRIVER_NAME,
	238	},
	239	};
	240
	241	static int __init exynos_drm_init(void)
	242	{
	243	DRM_DEBUG_DRIVER("%s\n", __FILE__);
	244
	245	return platform_driver_register(&exynos_drm_platform_driver);
	246	}
	247
	248	static void __exit exynos_drm_exit(void)
	249	{
	250	DRM_DEBUG_DRIVER("%s\n", __FILE__);
	251
	252	platform_driver_unregister(&exynos_drm_platform_driver);
	253	}
	254
	255	module_init(exynos_drm_init);
	256	module_exit(exynos_drm_exit);
	257
	258	MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
	259	MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
	260	MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
	261	MODULE_DESCRIPTION("Samsung SoC DRM Driver");
	262	MODULE_LICENSE("GPL");