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

/* exynos_drm_drv.h
 *
 * 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.
 */

#ifndef _EXYNOS_DRM_DRV_H_
#define _EXYNOS_DRM_DRV_H_

#include <linux/module.h>

#define MAX_CRTC	3
#define MAX_PLANE	5
#define MAX_FB_BUFFER	4
#define DEFAULT_ZPOS	-1

#define _wait_for(COND, MS) ({ \
	unsigned long timeout__ = jiffies + msecs_to_jiffies(MS);	\
	int ret__ = 0;							\
	while (!(COND)) {						\
		if (time_after(jiffies, timeout__)) {			\
			ret__ = -ETIMEDOUT;				\
			break;						\
		}							\
	}								\
	ret__;								\
})

#define wait_for(COND, MS) _wait_for(COND, MS)

struct drm_device;
struct exynos_drm_overlay;
struct drm_connector;

extern unsigned int drm_vblank_offdelay;

/* this enumerates display type. */
enum exynos_drm_output_type {
	EXYNOS_DISPLAY_TYPE_NONE,
	/* RGB or CPU Interface. */
	EXYNOS_DISPLAY_TYPE_LCD,
	/* HDMI Interface. */
	EXYNOS_DISPLAY_TYPE_HDMI,
	/* Virtual Display Interface. */
	EXYNOS_DISPLAY_TYPE_VIDI,
};

/*
 * Exynos drm overlay ops structure.
 *
 * @mode_set: copy drm overlay info to hw specific overlay info.
 * @commit: apply hardware specific overlay data to registers.
 * @enable: enable hardware specific overlay.
 * @disable: disable hardware specific overlay.
 * @wait_for_vblank: wait for vblank interrupt to make sure that
 *	hardware overlay is disabled.
 */
struct exynos_drm_overlay_ops {
	void (*mode_set)(struct device *subdrv_dev,
			 struct exynos_drm_overlay *overlay);
	void (*commit)(struct device *subdrv_dev, int zpos);
	void (*enable)(struct device *subdrv_dev, int zpos);
	void (*disable)(struct device *subdrv_dev, int zpos);
	void (*wait_for_vblank)(struct device *subdrv_dev);
};

/*
 * Exynos drm common overlay structure.
 *
 * @fb_x: offset x on a framebuffer to be displayed.
 *	- the unit is screen coordinates.
 * @fb_y: offset y on a framebuffer to be displayed.
 *	- the unit is screen coordinates.
 * @fb_width: width of a framebuffer.
 * @fb_height: height of a framebuffer.
 * @src_width: width of a partial image to be displayed from framebuffer.
 * @src_height: height of a partial image to be displayed from framebuffer.
 * @crtc_x: offset x on hardware screen.
 * @crtc_y: offset y on hardware screen.
 * @crtc_width: window width to be displayed (hardware screen).
 * @crtc_height: window height to be displayed (hardware screen).
 * @mode_width: width of screen mode.
 * @mode_height: height of screen mode.
 * @refresh: refresh rate.
 * @scan_flag: interlace or progressive way.
 *	(it could be DRM_MODE_FLAG_*)
 * @bpp: pixel size.(in bit)
 * @pixel_format: fourcc pixel format of this overlay
 * @dma_addr: array of bus(accessed by dma) address to the memory region
 *	      allocated for a overlay.
 * @vaddr: array of virtual memory addresss to this overlay.
 * @zpos: order of overlay layer(z position).
 * @default_win: a window to be enabled.
 * @color_key: color key on or off.
 * @index_color: if using color key feature then this value would be used
 *			as index color.
 * @local_path: in case of lcd type, local path mode on or off.
 * @transparency: transparency on or off.
 * @activated: activated or not.
 *
 * this structure is common to exynos SoC and its contents would be copied
 * to hardware specific overlay info.
 */
struct exynos_drm_overlay {
	unsigned int fb_x;
	unsigned int fb_y;
	unsigned int fb_width;
	unsigned int fb_height;
	unsigned int src_width;
	unsigned int src_height;
	unsigned int crtc_x;
	unsigned int crtc_y;
	unsigned int crtc_width;
	unsigned int crtc_height;
	unsigned int mode_width;
	unsigned int mode_height;
	unsigned int refresh;
	unsigned int scan_flag;
	unsigned int bpp;
	unsigned int pitch;
	uint32_t pixel_format;
	dma_addr_t dma_addr[MAX_FB_BUFFER];
	void __iomem *vaddr[MAX_FB_BUFFER];
	int zpos;

	bool default_win;
	bool color_key;
	unsigned int index_color;
	bool local_path;
	bool transparency;
	bool activated;
};

/*
 * Exynos DRM Display Structure.
 *	- this structure is common to analog tv, digital tv and lcd panel.
 *
 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
 * @is_connected: check for that display is connected or not.
 * @get_edid: get edid modes from display driver.
 * @get_panel: get panel object from display driver.
 * @check_timing: check if timing is valid or not.
 * @power_on: display device on or off.
 */
struct exynos_drm_display_ops {
	enum exynos_drm_output_type type;
	bool (*is_connected)(struct device *dev);
	int (*get_edid)(struct device *dev, struct drm_connector *connector,
				u8 *edid, int len);
	void *(*get_panel)(struct device *dev);
	int (*check_timing)(struct device *dev, void *timing);
	int (*power_on)(struct device *dev, int mode);
};

/*
 * Exynos drm manager ops
 *
 * @dpms: control device power.
 * @apply: set timing, vblank and overlay data to registers.
 * @mode_fixup: fix mode data comparing to hw specific display mode.
 * @mode_set: convert drm_display_mode to hw specific display mode and
 *	      would be called by encoder->mode_set().
 * @get_max_resol: get maximum resolution to specific hardware.
 * @commit: set current hw specific display mode to hw.
 * @enable_vblank: specific driver callback for enabling vblank interrupt.
 * @disable_vblank: specific driver callback for disabling vblank interrupt.
 */
struct exynos_drm_manager_ops {
	void (*dpms)(struct device *subdrv_dev, int mode);
	void (*apply)(struct device *subdrv_dev);
	void (*mode_fixup)(struct device *subdrv_dev,
				struct drm_connector *connector,
				const struct drm_display_mode *mode,
				struct drm_display_mode *adjusted_mode);
	void (*mode_set)(struct device *subdrv_dev, void *mode);
	void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width,
				unsigned int *height);
	void (*commit)(struct device *subdrv_dev);
	int (*enable_vblank)(struct device *subdrv_dev);
	void (*disable_vblank)(struct device *subdrv_dev);
};

/*
 * Exynos drm common manager structure.
 *
 * @dev: pointer to device object for subdrv device driver.
 *	sub drivers such as display controller or hdmi driver,
 *	have their own device object.
 * @ops: pointer to callbacks for exynos drm specific framebuffer.
 *	these callbacks should be set by specific drivers such fimd
 *	or hdmi driver and are used to control hardware global registers.
 * @overlay_ops: pointer to callbacks for exynos drm specific framebuffer.
 *	these callbacks should be set by specific drivers such fimd
 *	or hdmi driver and are used to control hardware overlay reigsters.
 * @display: pointer to callbacks for exynos drm specific framebuffer.
 *	these callbacks should be set by specific drivers such fimd
 *	or hdmi driver and are used to control display devices such as
 *	analog tv, digital tv and lcd panel and also get timing data for them.
 */
struct exynos_drm_manager {
	struct device *dev;
	int pipe;
	struct exynos_drm_manager_ops *ops;
	struct exynos_drm_overlay_ops *overlay_ops;
	struct exynos_drm_display_ops *display_ops;
};

struct exynos_drm_g2d_private {
	struct device		*dev;
	struct list_head	inuse_cmdlist;
	struct list_head	event_list;
	struct list_head	gem_list;
	unsigned int		gem_nr;
};

struct drm_exynos_file_private {
	struct exynos_drm_g2d_private	*g2d_priv;
};

/*
 * Exynos drm private structure.
 */
struct exynos_drm_private {
	struct drm_fb_helper *fb_helper;

	/* list head for new event to be added. */
	struct list_head pageflip_event_list;

	/*
	 * created crtc object would be contained at this array and
	 * this array is used to be aware of which crtc did it request vblank.
	 */
	struct drm_crtc *crtc[MAX_CRTC];
	struct drm_property *plane_zpos_property;
	struct drm_property *crtc_mode_property;
};

/*
 * Exynos drm sub driver structure.
 *
 * @list: sub driver has its own list object to register to exynos drm driver.
 * @dev: pointer to device object for subdrv device driver.
 * @drm_dev: pointer to drm_device and this pointer would be set
 *	when sub driver calls exynos_drm_subdrv_register().
 * @manager: subdrv has its own manager to control a hardware appropriately
 *	and we can access a hardware drawing on this manager.
 * @probe: this callback would be called by exynos drm driver after
 *	subdrv is registered to it.
 * @remove: this callback is used to release resources created
 *	by probe callback.
 * @open: this would be called with drm device file open.
 * @close: this would be called with drm device file close.
 * @encoder: encoder object owned by this sub driver.
 * @connector: connector object owned by this sub driver.
 */
struct exynos_drm_subdrv {
	struct list_head list;
	struct device *dev;
	struct drm_device *drm_dev;
	struct exynos_drm_manager *manager;

	int (*probe)(struct drm_device *drm_dev, struct device *dev);
	void (*remove)(struct drm_device *drm_dev, struct device *dev);
	int (*open)(struct drm_device *drm_dev, struct device *dev,
			struct drm_file *file);
	void (*close)(struct drm_device *drm_dev, struct device *dev,
			struct drm_file *file);

	struct drm_encoder *encoder;
	struct drm_connector *connector;
};

/*
 * this function calls a probe callback registered to sub driver list and
 * create its own encoder and connector and then set drm_device object
 * to global one.
 */
int exynos_drm_device_register(struct drm_device *dev);
/*
 * this function calls a remove callback registered to sub driver list and
 * destroy its own encoder and connetor.
 */
int exynos_drm_device_unregister(struct drm_device *dev);

/*
 * this function would be called by sub drivers such as display controller
 * or hdmi driver to register this sub driver object to exynos drm driver
 * and when a sub driver is registered to exynos drm driver a probe callback
 * of the sub driver is called and creates its own encoder and connector.
 */
int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);

/* this function removes subdrv list from exynos drm driver */
int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);

int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);

extern struct platform_driver fimd_driver;
extern struct platform_driver hdmi_driver;
extern struct platform_driver mixer_driver;
extern struct platform_driver exynos_drm_common_hdmi_driver;
extern struct platform_driver vidi_driver;
extern struct platform_driver g2d_driver;
#endif
Commit	Line	Data
1c248b7d ID	1	/* exynos_drm_drv.h
	2	*
	3	* Copyright (c) 2011 Samsung Electronics Co., Ltd.
	4	* Authors:
	5	* Inki Dae <inki.dae@samsung.com>
	6	* Joonyoung Shim <jy0922.shim@samsung.com>
	7	* Seung-Woo Kim <sw0312.kim@samsung.com>
	8	*
	9	* Permission is hereby granted, free of charge, to any person obtaining a
	10	* copy of this software and associated documentation files (the "Software"),
	11	* to deal in the Software without restriction, including without limitation
	12	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	13	* and/or sell copies of the Software, and to permit persons to whom the
	14	* Software is furnished to do so, subject to the following conditions:
	15	*
	16	* The above copyright notice and this permission notice (including the next
	17	* paragraph) shall be included in all copies or substantial portions of the
	18	* Software.
	19	*
	20	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	21	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	23	* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	24	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	25	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	26	* OTHER DEALINGS IN THE SOFTWARE.
	27	*/
	28
	29	#ifndef _EXYNOS_DRM_DRV_H_
	30	#define _EXYNOS_DRM_DRV_H_
	31
4f9eb94f	32	#include <linux/module.h>
1c248b7d	33
b73d1230	34	#define MAX_CRTC 3
864ee9e6	35	#define MAX_PLANE 5
b73d1230	36	#define MAX_FB_BUFFER 4
864ee9e6	37	#define DEFAULT_ZPOS -1
1c248b7d	38
b011941f ID	39	#define _wait_for(COND, MS) ({ \
	40	unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
	41	int ret__ = 0; \
	42	while (!(COND)) { \
	43	if (time_after(jiffies, timeout__)) { \
	44	ret__ = -ETIMEDOUT; \
	45	break; \
	46	} \
	47	} \
	48	ret__; \
	49	})
	50
	51	#define wait_for(COND, MS) _wait_for(COND, MS)
	52
1c248b7d ID	53	struct drm_device;
	54	struct exynos_drm_overlay;
	55	struct drm_connector;
	56
52c68814 ID	57	extern unsigned int drm_vblank_offdelay;
52c68814 ID	58
1c248b7d ID	59	/* this enumerates display type. */
	60	enum exynos_drm_output_type {
	61	EXYNOS_DISPLAY_TYPE_NONE,
	62	/* RGB or CPU Interface. */
	63	EXYNOS_DISPLAY_TYPE_LCD,
	64	/* HDMI Interface. */
	65	EXYNOS_DISPLAY_TYPE_HDMI,
b73d1230 ID	66	/* Virtual Display Interface. */
b73d1230 ID	67	EXYNOS_DISPLAY_TYPE_VIDI,
1c248b7d ID	68	};
	69
	70	/*
	71	* Exynos drm overlay ops structure.
	72	*
	73	* @mode_set: copy drm overlay info to hw specific overlay info.
	74	* @commit: apply hardware specific overlay data to registers.
cf5188ac	75	* @enable: enable hardware specific overlay.
1c248b7d	76	* @disable: disable hardware specific overlay.
b011941f ID	77	* @wait_for_vblank: wait for vblank interrupt to make sure that
b011941f ID	78	* hardware overlay is disabled.
1c248b7d ID	79	*/
	80	struct exynos_drm_overlay_ops {
	81	void (mode_set)(struct device subdrv_dev,
	82	struct exynos_drm_overlay *overlay);
864ee9e6	83	void (commit)(struct device subdrv_dev, int zpos);
cf5188ac	84	void (enable)(struct device subdrv_dev, int zpos);
864ee9e6	85	void (disable)(struct device subdrv_dev, int zpos);
b011941f	86	void (wait_for_vblank)(struct device subdrv_dev);
1c248b7d ID	87	};
	88
	89	/*
	90	* Exynos drm common overlay structure.
	91	*
19c8b834 ID	92	* @fb_x: offset x on a framebuffer to be displayed.
	93	* - the unit is screen coordinates.
	94	* @fb_y: offset y on a framebuffer to be displayed.
	95	* - the unit is screen coordinates.
	96	* @fb_width: width of a framebuffer.
	97	* @fb_height: height of a framebuffer.
0d8071ee SWK	98	* @src_width: width of a partial image to be displayed from framebuffer.
0d8071ee SWK	99	* @src_height: height of a partial image to be displayed from framebuffer.
19c8b834 ID	100	* @crtc_x: offset x on hardware screen.
	101	* @crtc_y: offset y on hardware screen.
	102	* @crtc_width: window width to be displayed (hardware screen).
	103	* @crtc_height: window height to be displayed (hardware screen).
	104	* @mode_width: width of screen mode.
	105	* @mode_height: height of screen mode.
	106	* @refresh: refresh rate.
	107	* @scan_flag: interlace or progressive way.
	108	* (it could be DRM_MODE_FLAG_*)
1c248b7d	109	* @bpp: pixel size.(in bit)
229d3534 SWK	110	* @pixel_format: fourcc pixel format of this overlay
	111	* @dma_addr: array of bus(accessed by dma) address to the memory region
	112	* allocated for a overlay.
	113	* @vaddr: array of virtual memory addresss to this overlay.
864ee9e6	114	* @zpos: order of overlay layer(z position).
1c248b7d ID	115	* @default_win: a window to be enabled.
	116	* @color_key: color key on or off.
	117	* @index_color: if using color key feature then this value would be used
	118	* as index color.
	119	* @local_path: in case of lcd type, local path mode on or off.
	120	* @transparency: transparency on or off.
	121	* @activated: activated or not.
	122	*
	123	* this structure is common to exynos SoC and its contents would be copied
	124	* to hardware specific overlay info.
	125	*/
	126	struct exynos_drm_overlay {
19c8b834 ID	127	unsigned int fb_x;
	128	unsigned int fb_y;
	129	unsigned int fb_width;
	130	unsigned int fb_height;
0d8071ee SWK	131	unsigned int src_width;
0d8071ee SWK	132	unsigned int src_height;
19c8b834 ID	133	unsigned int crtc_x;
	134	unsigned int crtc_y;
	135	unsigned int crtc_width;
	136	unsigned int crtc_height;
	137	unsigned int mode_width;
	138	unsigned int mode_height;
	139	unsigned int refresh;
	140	unsigned int scan_flag;
1c248b7d	141	unsigned int bpp;
19c8b834	142	unsigned int pitch;
229d3534 SWK	143	uint32_t pixel_format;
	144	dma_addr_t dma_addr[MAX_FB_BUFFER];
	145	void __iomem *vaddr[MAX_FB_BUFFER];
864ee9e6	146	int zpos;
1c248b7d ID	147
	148	bool default_win;
	149	bool color_key;
	150	unsigned int index_color;
	151	bool local_path;
	152	bool transparency;
	153	bool activated;
	154	};
	155
	156	/*
	157	* Exynos DRM Display Structure.
	158	* - this structure is common to analog tv, digital tv and lcd panel.
	159	*
a88cab2b	160	* @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
1c248b7d ID	161	* @is_connected: check for that display is connected or not.
1c248b7d ID	162	* @get_edid: get edid modes from display driver.
607c50d4	163	* @get_panel: get panel object from display driver.
1c248b7d ID	164	* @check_timing: check if timing is valid or not.
	165	* @power_on: display device on or off.
	166	*/
74ccc539	167	struct exynos_drm_display_ops {
1c248b7d ID	168	enum exynos_drm_output_type type;
	169	bool (is_connected)(struct device dev);
	170	int (get_edid)(struct device dev, struct drm_connector *connector,
	171	u8 *edid, int len);
607c50d4	172	void (get_panel)(struct device *dev);
1c248b7d ID	173	int (check_timing)(struct device dev, void *timing);
	174	int (power_on)(struct device dev, int mode);
	175	};
	176
	177	/*
	178	* Exynos drm manager ops
	179	*
ec05da95 ID	180	* @dpms: control device power.
ec05da95 ID	181	* @apply: set timing, vblank and overlay data to registers.
1de425b0	182	* @mode_fixup: fix mode data comparing to hw specific display mode.
1c248b7d ID	183	* @mode_set: convert drm_display_mode to hw specific display mode and
1c248b7d ID	184	* would be called by encoder->mode_set().
1de425b0	185	* @get_max_resol: get maximum resolution to specific hardware.
1c248b7d ID	186	* @commit: set current hw specific display mode to hw.
	187	* @enable_vblank: specific driver callback for enabling vblank interrupt.
	188	* @disable_vblank: specific driver callback for disabling vblank interrupt.
	189	*/
	190	struct exynos_drm_manager_ops {
ec05da95 ID	191	void (dpms)(struct device subdrv_dev, int mode);
ec05da95 ID	192	void (apply)(struct device subdrv_dev);
1de425b0 ID	193	void (mode_fixup)(struct device subdrv_dev,
1de425b0 ID	194	struct drm_connector *connector,
e811f5ae	195	const struct drm_display_mode *mode,
1de425b0	196	struct drm_display_mode *adjusted_mode);
1c248b7d	197	void (mode_set)(struct device subdrv_dev, void *mode);
1de425b0 ID	198	void (get_max_resol)(struct device subdrv_dev, unsigned int *width,
1de425b0 ID	199	unsigned int *height);
1c248b7d ID	200	void (commit)(struct device subdrv_dev);
	201	int (enable_vblank)(struct device subdrv_dev);
	202	void (disable_vblank)(struct device subdrv_dev);
	203	};
	204
	205	/*
	206	* Exynos drm common manager structure.
	207	*
	208	* @dev: pointer to device object for subdrv device driver.
	209	* sub drivers such as display controller or hdmi driver,
	210	* have their own device object.
	211	* @ops: pointer to callbacks for exynos drm specific framebuffer.
	212	* these callbacks should be set by specific drivers such fimd
	213	* or hdmi driver and are used to control hardware global registers.
	214	* @overlay_ops: pointer to callbacks for exynos drm specific framebuffer.
	215	* these callbacks should be set by specific drivers such fimd
	216	* or hdmi driver and are used to control hardware overlay reigsters.
	217	* @display: pointer to callbacks for exynos drm specific framebuffer.
	218	* these callbacks should be set by specific drivers such fimd
	219	* or hdmi driver and are used to control display devices such as
	220	* analog tv, digital tv and lcd panel and also get timing data for them.
	221	*/
	222	struct exynos_drm_manager {
	223	struct device *dev;
	224	int pipe;
	225	struct exynos_drm_manager_ops *ops;
	226	struct exynos_drm_overlay_ops *overlay_ops;
74ccc539	227	struct exynos_drm_display_ops *display_ops;
1c248b7d ID	228	};
1c248b7d ID	229
d7f1642c JS	230	struct exynos_drm_g2d_private {
	231	struct device *dev;
	232	struct list_head inuse_cmdlist;
	233	struct list_head event_list;
	234	struct list_head gem_list;
	235	unsigned int gem_nr;
	236	};
	237
	238	struct drm_exynos_file_private {
	239	struct exynos_drm_g2d_private *g2d_priv;
	240	};
	241
1c248b7d ID	242	/*
	243	* Exynos drm private structure.
	244	*/
	245	struct exynos_drm_private {
	246	struct drm_fb_helper *fb_helper;
	247
ccf4d883	248	/* list head for new event to be added. */
1c248b7d	249	struct list_head pageflip_event_list;
1c248b7d ID	250
	251	/*
	252	* created crtc object would be contained at this array and
	253	* this array is used to be aware of which crtc did it request vblank.
	254	*/
	255	struct drm_crtc *crtc[MAX_CRTC];
00ae67cf	256	struct drm_property *plane_zpos_property;
3b8d1cf8	257	struct drm_property *crtc_mode_property;
1c248b7d ID	258	};
	259
	260	/*
	261	* Exynos drm sub driver structure.
	262	*
	263	* @list: sub driver has its own list object to register to exynos drm driver.
677e84c1	264	* @dev: pointer to device object for subdrv device driver.
1c248b7d ID	265	* @drm_dev: pointer to drm_device and this pointer would be set
1c248b7d ID	266	* when sub driver calls exynos_drm_subdrv_register().
677e84c1 JS	267	* @manager: subdrv has its own manager to control a hardware appropriately
677e84c1 JS	268	* and we can access a hardware drawing on this manager.
1c248b7d ID	269	* @probe: this callback would be called by exynos drm driver after
	270	* subdrv is registered to it.
	271	* @remove: this callback is used to release resources created
	272	* by probe callback.
9084f7b8 JS	273	* @open: this would be called with drm device file open.
9084f7b8 JS	274	* @close: this would be called with drm device file close.
1c248b7d ID	275	* @encoder: encoder object owned by this sub driver.
	276	* @connector: connector object owned by this sub driver.
	277	*/
	278	struct exynos_drm_subdrv {
	279	struct list_head list;
677e84c1	280	struct device *dev;
1c248b7d	281	struct drm_device *drm_dev;
677e84c1	282	struct exynos_drm_manager *manager;
1c248b7d	283
41c24346	284	int (probe)(struct drm_device drm_dev, struct device *dev);
29cb6025	285	void (remove)(struct drm_device drm_dev, struct device *dev);
9084f7b8 JS	286	int (open)(struct drm_device drm_dev, struct device *dev,
	287	struct drm_file *file);
	288	void (close)(struct drm_device drm_dev, struct device *dev,
	289	struct drm_file *file);
1c248b7d	290
1c248b7d ID	291	struct drm_encoder *encoder;
	292	struct drm_connector *connector;
	293	};
	294
	295	/*
	296	* this function calls a probe callback registered to sub driver list and
	297	* create its own encoder and connector and then set drm_device object
	298	* to global one.
	299	*/
	300	int exynos_drm_device_register(struct drm_device *dev);
	301	/*
	302	* this function calls a remove callback registered to sub driver list and
	303	* destroy its own encoder and connetor.
	304	*/
	305	int exynos_drm_device_unregister(struct drm_device *dev);
	306
	307	/*
	308	* this function would be called by sub drivers such as display controller
	309	* or hdmi driver to register this sub driver object to exynos drm driver
	310	* and when a sub driver is registered to exynos drm driver a probe callback
132a5b91	311	* of the sub driver is called and creates its own encoder and connector.
1c248b7d ID	312	*/
	313	int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
	314
132a5b91	315	/* this function removes subdrv list from exynos drm driver */
1c248b7d ID	316	int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
1c248b7d ID	317
9084f7b8 JS	318	int exynos_drm_subdrv_open(struct drm_device dev, struct drm_file file);
	319	void exynos_drm_subdrv_close(struct drm_device dev, struct drm_file file);
	320
132a5b91 JS	321	extern struct platform_driver fimd_driver;
	322	extern struct platform_driver hdmi_driver;
	323	extern struct platform_driver mixer_driver;
	324	extern struct platform_driver exynos_drm_common_hdmi_driver;
b73d1230	325	extern struct platform_driver vidi_driver;
d7f1642c	326	extern struct platform_driver g2d_driver;
1c248b7d	327	#endif