[deliverable/linux.git] / include / drm / drm_fb_helper.h

/*
 * Copyright (c) 2006-2009 Red Hat Inc.
 * Copyright (c) 2006-2008 Intel Corporation
 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
 *
 * DRM framebuffer helper functions
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting documentation, and
 * that the name of the copyright holders not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no representations
 * about the suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 *
 * Authors:
 *      Dave Airlie <airlied@linux.ie>
 *      Jesse Barnes <jesse.barnes@intel.com>
 */
#ifndef DRM_FB_HELPER_H
#define DRM_FB_HELPER_H

struct drm_fb_helper;

#include <linux/kgdb.h>

struct drm_fb_offset {
	int x, y;
};

struct drm_fb_helper_crtc {
	struct drm_mode_set mode_set;
	struct drm_display_mode *desired_mode;
	int x, y;
};

/**
 * struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size
 * @fb_width: fbdev width
 * @fb_height: fbdev height
 * @surface_width: scanout buffer width
 * @surface_height: scanout buffer height
 * @surface_bpp: scanout buffer bpp
 * @surface_depth: scanout buffer depth
 *
 * Note that the scanout surface width/height may be larger than the fbdev
 * width/height.  In case of multiple displays, the scanout surface is sized
 * according to the largest width/height (so it is large enough for all CRTCs
 * to scanout).  But the fbdev width/height is sized to the minimum width/
 * height of all the displays.  This ensures that fbcon fits on the smallest
 * of the attached displays.
 *
 * So what is passed to drm_fb_helper_fill_var() should be fb_width/fb_height,
 * rather than the surface size.
 */
struct drm_fb_helper_surface_size {
	u32 fb_width;
	u32 fb_height;
	u32 surface_width;
	u32 surface_height;
	u32 surface_bpp;
	u32 surface_depth;
};

/**
 * struct drm_fb_helper_funcs - driver callbacks for the fbdev emulation library
 * @gamma_set: Set the given gamma lut register on the given crtc.
 * @gamma_get: Read the given gamma lut register on the given crtc, used to
 *             save the current lut when force-restoring the fbdev for e.g.
 *             kdbg.
 * @fb_probe: Driver callback to allocate and initialize the fbdev info
 *            structure. Furthermore it also needs to allocate the drm
 *            framebuffer used to back the fbdev.
 * @initial_config: Setup an initial fbdev display configuration
 *
 * Driver callbacks used by the fbdev emulation helper library.
 */
struct drm_fb_helper_funcs {
	void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
			  u16 blue, int regno);
	void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
			  u16 *blue, int regno);

	int (*fb_probe)(struct drm_fb_helper *helper,
			struct drm_fb_helper_surface_size *sizes);
	bool (*initial_config)(struct drm_fb_helper *fb_helper,
			       struct drm_fb_helper_crtc **crtcs,
			       struct drm_display_mode **modes,
			       struct drm_fb_offset *offsets,
			       bool *enabled, int width, int height);
};

struct drm_fb_helper_connector {
	struct drm_connector *connector;
};

/**
 * struct drm_fb_helper - helper to emulate fbdev on top of kms
 * @fb:  Scanout framebuffer object
 * @dev:  DRM device
 * @crtc_count: number of possible CRTCs
 * @crtc_info: per-CRTC helper state (mode, x/y offset, etc)
 * @connector_count: number of connected connectors
 * @connector_info_alloc_count: size of connector_info
 * @funcs: driver callbacks for fb helper
 * @fbdev: emulated fbdev device info struct
 * @pseudo_palette: fake palette of 16 colors
 * @kernel_fb_list: list_head in kernel_fb_helper_list
 * @delayed_hotplug: was there a hotplug while kms master active?
 */
struct drm_fb_helper {
	struct drm_framebuffer *fb;
	struct drm_device *dev;
	int crtc_count;
	struct drm_fb_helper_crtc *crtc_info;
	int connector_count;
	int connector_info_alloc_count;
	struct drm_fb_helper_connector **connector_info;
	const struct drm_fb_helper_funcs *funcs;
	struct fb_info *fbdev;
	u32 pseudo_palette[17];
	struct list_head kernel_fb_list;

	/* we got a hotplug but fbdev wasn't running the console
	   delay until next set_par */
	bool delayed_hotplug;

	/**
	 * @atomic:
	 *
	 * Use atomic updates for restore_fbdev_mode(), etc.  This defaults to
	 * true if driver has DRIVER_ATOMIC feature flag, but drivers can
	 * override it to true after drm_fb_helper_init() if they support atomic
	 * modeset but do not yet advertise DRIVER_ATOMIC (note that fb-helper
	 * does not require ASYNC commits).
	 */
	bool atomic;
};

#ifdef CONFIG_DRM_FBDEV_EMULATION
void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,
			   const struct drm_fb_helper_funcs *funcs);
int drm_fb_helper_init(struct drm_device *dev,
		       struct drm_fb_helper *helper, int crtc_count,
		       int max_conn);
void drm_fb_helper_fini(struct drm_fb_helper *helper);
int drm_fb_helper_blank(int blank, struct fb_info *info);
int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
			      struct fb_info *info);
int drm_fb_helper_set_par(struct fb_info *info);
int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
			    struct fb_info *info);

int drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper);

struct fb_info *drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper);
void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper);
void drm_fb_helper_release_fbi(struct drm_fb_helper *fb_helper);
void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
			    uint32_t fb_width, uint32_t fb_height);
void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
			    uint32_t depth);

void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper);

ssize_t drm_fb_helper_sys_read(struct fb_info *info, char __user *buf,
			       size_t count, loff_t *ppos);
ssize_t drm_fb_helper_sys_write(struct fb_info *info, const char __user *buf,
				size_t count, loff_t *ppos);

void drm_fb_helper_sys_fillrect(struct fb_info *info,
				const struct fb_fillrect *rect);
void drm_fb_helper_sys_copyarea(struct fb_info *info,
				const struct fb_copyarea *area);
void drm_fb_helper_sys_imageblit(struct fb_info *info,
				 const struct fb_image *image);

void drm_fb_helper_cfb_fillrect(struct fb_info *info,
				const struct fb_fillrect *rect);
void drm_fb_helper_cfb_copyarea(struct fb_info *info,
				const struct fb_copyarea *area);
void drm_fb_helper_cfb_imageblit(struct fb_info *info,
				 const struct fb_image *image);

void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, int state);

int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);

int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
int drm_fb_helper_debug_enter(struct fb_info *info);
int drm_fb_helper_debug_leave(struct fb_info *info);
struct drm_display_mode *
drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
			int width, int height);
struct drm_display_mode *
drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
		      int width, int height);

int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector);
int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
				       struct drm_connector *connector);
#else
static inline void drm_fb_helper_prepare(struct drm_device *dev,
					struct drm_fb_helper *helper,
					const struct drm_fb_helper_funcs *funcs)
{
}

static inline int drm_fb_helper_init(struct drm_device *dev,
		       struct drm_fb_helper *helper, int crtc_count,
		       int max_conn)
{
	return 0;
}

static inline void drm_fb_helper_fini(struct drm_fb_helper *helper)
{
}

static inline int drm_fb_helper_blank(int blank, struct fb_info *info)
{
	return 0;
}

static inline int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
					    struct fb_info *info)
{
	return 0;
}

static inline int drm_fb_helper_set_par(struct fb_info *info)
{
	return 0;
}

static inline int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
					  struct fb_info *info)
{
	return 0;
}

static inline int
drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper)
{
	return 0;
}

static inline struct fb_info *
drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper)
{
	return NULL;
}

static inline void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper)
{
}
static inline void drm_fb_helper_release_fbi(struct drm_fb_helper *fb_helper)
{
}

static inline void drm_fb_helper_fill_var(struct fb_info *info,
					  struct drm_fb_helper *fb_helper,
					  uint32_t fb_width, uint32_t fb_height)
{
}

static inline void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
					  uint32_t depth)
{
}

static inline int drm_fb_helper_setcmap(struct fb_cmap *cmap,
					struct fb_info *info)
{
	return 0;
}

static inline void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper)
{
}

static inline ssize_t drm_fb_helper_sys_read(struct fb_info *info,
					     char __user *buf, size_t count,
					     loff_t *ppos)
{
	return -ENODEV;
}

static inline ssize_t drm_fb_helper_sys_write(struct fb_info *info,
					      const char __user *buf,
					      size_t count, loff_t *ppos)
{
	return -ENODEV;
}

static inline void drm_fb_helper_sys_fillrect(struct fb_info *info,
					      const struct fb_fillrect *rect)
{
}

static inline void drm_fb_helper_sys_copyarea(struct fb_info *info,
					      const struct fb_copyarea *area)
{
}

static inline void drm_fb_helper_sys_imageblit(struct fb_info *info,
					       const struct fb_image *image)
{
}

static inline void drm_fb_helper_cfb_fillrect(struct fb_info *info,
					      const struct fb_fillrect *rect)
{
}

static inline void drm_fb_helper_cfb_copyarea(struct fb_info *info,
					      const struct fb_copyarea *area)
{
}

static inline void drm_fb_helper_cfb_imageblit(struct fb_info *info,
					       const struct fb_image *image)
{
}

static inline void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper,
					     int state)
{
}

static inline int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
{
	return 0;
}

static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper,
					       int bpp_sel)
{
	return 0;
}

static inline int
drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
{
	return 0;
}

static inline int drm_fb_helper_debug_enter(struct fb_info *info)
{
	return 0;
}

static inline int drm_fb_helper_debug_leave(struct fb_info *info)
{
	return 0;
}

static inline struct drm_display_mode *
drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
		       int width, int height)
{
	return NULL;
}

static inline struct drm_display_mode *
drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
		      int width, int height)
{
	return NULL;
}

static inline int
drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
				struct drm_connector *connector)
{
	return 0;
}

static inline int
drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
				   struct drm_connector *connector)
{
	return 0;
}
#endif
#endif
Commit	Line	Data
785b93ef DA	1	/*
	2	* Copyright (c) 2006-2009 Red Hat Inc.
	3	* Copyright (c) 2006-2008 Intel Corporation
	4	* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
	5	*
	6	* DRM framebuffer helper functions
	7	*
	8	* Permission to use, copy, modify, distribute, and sell this software and its
	9	* documentation for any purpose is hereby granted without fee, provided that
	10	* the above copyright notice appear in all copies and that both that copyright
	11	* notice and this permission notice appear in supporting documentation, and
	12	* that the name of the copyright holders not be used in advertising or
	13	* publicity pertaining to distribution of the software without specific,
	14	* written prior permission. The copyright holders make no representations
	15	* about the suitability of this software for any purpose. It is provided "as
	16	* is" without express or implied warranty.
	17	*
	18	* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
	19	* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
	20	* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
	21	* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
	22	* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
	23	* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	24	* OF THIS SOFTWARE.
	25	*
	26	* Authors:
	27	* Dave Airlie <airlied@linux.ie>
	28	* Jesse Barnes <jesse.barnes@intel.com>
	29	*/
	30	#ifndef DRM_FB_HELPER_H
	31	#define DRM_FB_HELPER_H
	32
4abe3520 DA	33	struct drm_fb_helper;
4abe3520 DA	34
1a7aba7f JB	35	#include <linux/kgdb.h>
1a7aba7f JB	36
b0ee9e7f DA	37	struct drm_fb_offset {
	38	int x, y;
	39	};
	40
785b93ef	41	struct drm_fb_helper_crtc {
785b93ef	42	struct drm_mode_set mode_set;
8be48d92	43	struct drm_display_mode *desired_mode;
b0ee9e7f	44	int x, y;
785b93ef DA	45	};
785b93ef DA	46
b7b5ee59 RC	47	/**
	48	* struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size
	49	* @fb_width: fbdev width
	50	* @fb_height: fbdev height
	51	* @surface_width: scanout buffer width
	52	* @surface_height: scanout buffer height
	53	* @surface_bpp: scanout buffer bpp
	54	* @surface_depth: scanout buffer depth
	55	*
	56	* Note that the scanout surface width/height may be larger than the fbdev
	57	* width/height. In case of multiple displays, the scanout surface is sized
	58	* according to the largest width/height (so it is large enough for all CRTCs
	59	* to scanout). But the fbdev width/height is sized to the minimum width/
	60	* height of all the displays. This ensures that fbcon fits on the smallest
	61	* of the attached displays.
	62	*
	63	* So what is passed to drm_fb_helper_fill_var() should be fb_width/fb_height,
	64	* rather than the surface size.
	65	*/
38651674 DA	66	struct drm_fb_helper_surface_size {
	67	u32 fb_width;
	68	u32 fb_height;
	69	u32 surface_width;
	70	u32 surface_height;
	71	u32 surface_bpp;
	72	u32 surface_depth;
	73	};
	74
207fd329 DV	75	/**
207fd329 DV	76	* struct drm_fb_helper_funcs - driver callbacks for the fbdev emulation library
7b97936f VS	77	* @gamma_set: Set the given gamma lut register on the given crtc.
	78	* @gamma_get: Read the given gamma lut register on the given crtc, used to
	79	* save the current lut when force-restoring the fbdev for e.g.
	80	* kdbg.
	81	* @fb_probe: Driver callback to allocate and initialize the fbdev info
e227867f	82	* structure. Furthermore it also needs to allocate the drm
7b97936f VS	83	* framebuffer used to back the fbdev.
7b97936f VS	84	* @initial_config: Setup an initial fbdev display configuration
207fd329 DV	85	*
	86	* Driver callbacks used by the fbdev emulation helper library.
	87	*/
4abe3520 DA	88	struct drm_fb_helper_funcs {
	89	void (gamma_set)(struct drm_crtc crtc, u16 red, u16 green,
	90	u16 blue, int regno);
	91	void (gamma_get)(struct drm_crtc crtc, u16 red, u16 green,
	92	u16 *blue, int regno);
	93
	94	int (fb_probe)(struct drm_fb_helper helper,
	95	struct drm_fb_helper_surface_size *sizes);
11e17a08 JB	96	bool (initial_config)(struct drm_fb_helper fb_helper,
	97	struct drm_fb_helper_crtc **crtcs,
	98	struct drm_display_mode **modes,
b0ee9e7f	99	struct drm_fb_offset *offsets,
11e17a08	100	bool *enabled, int width, int height);
4abe3520 DA	101	};
4abe3520 DA	102
d50ba256	103	struct drm_fb_helper_connector {
0b4c0f3f	104	struct drm_connector *connector;
d50ba256 DA	105	};
d50ba256 DA	106
9685cd9d RC	107	/**
	108	* struct drm_fb_helper - helper to emulate fbdev on top of kms
	109	* @fb: Scanout framebuffer object
	110	* @dev: DRM device
	111	* @crtc_count: number of possible CRTCs
	112	* @crtc_info: per-CRTC helper state (mode, x/y offset, etc)
	113	* @connector_count: number of connected connectors
	114	* @connector_info_alloc_count: size of connector_info
	115	* @funcs: driver callbacks for fb helper
	116	* @fbdev: emulated fbdev device info struct
	117	* @pseudo_palette: fake palette of 16 colors
	118	* @kernel_fb_list: list_head in kernel_fb_helper_list
	119	* @delayed_hotplug: was there a hotplug while kms master active?
	120	*/
785b93ef DA	121	struct drm_fb_helper {
	122	struct drm_framebuffer *fb;
	123	struct drm_device *dev;
785b93ef DA	124	int crtc_count;
785b93ef DA	125	struct drm_fb_helper_crtc *crtc_info;
0b4c0f3f	126	int connector_count;
65c2a89c	127	int connector_info_alloc_count;
0b4c0f3f	128	struct drm_fb_helper_connector **connector_info;
3a493879	129	const struct drm_fb_helper_funcs *funcs;
38651674 DA	130	struct fb_info *fbdev;
38651674 DA	131	u32 pseudo_palette[17];
785b93ef	132	struct list_head kernel_fb_list;
8be48d92	133
4abe3520 DA	134	/* we got a hotplug but fbdev wasn't running the console
	135	delay until next set_par */
	136	bool delayed_hotplug;
bbb1e524 RC	137
	138	/**
	139	* @atomic:
	140	*
	141	* Use atomic updates for restore_fbdev_mode(), etc. This defaults to
	142	* true if driver has DRIVER_ATOMIC feature flag, but drivers can
	143	* override it to true after drm_fb_helper_init() if they support atomic
	144	* modeset but do not yet advertise DRIVER_ATOMIC (note that fb-helper
	145	* does not require ASYNC commits).
	146	*/
	147	bool atomic;
785b93ef DA	148	};
785b93ef DA	149
a03fdcb1	150	#ifdef CONFIG_DRM_FBDEV_EMULATION
10a23102 TR	151	void drm_fb_helper_prepare(struct drm_device dev, struct drm_fb_helper helper,
10a23102 TR	152	const struct drm_fb_helper_funcs *funcs);
4abe3520 DA	153	int drm_fb_helper_init(struct drm_device *dev,
4abe3520 DA	154	struct drm_fb_helper *helper, int crtc_count,
eb1f8e4f	155	int max_conn);
4abe3520	156	void drm_fb_helper_fini(struct drm_fb_helper *helper);
785b93ef DA	157	int drm_fb_helper_blank(int blank, struct fb_info *info);
	158	int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
	159	struct fb_info *info);
	160	int drm_fb_helper_set_par(struct fb_info *info);
	161	int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
	162	struct fb_info *info);
785b93ef	163
b7bdf0a8	164	int drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper);
b8017d6c AT	165
	166	struct fb_info drm_fb_helper_alloc_fbi(struct drm_fb_helper fb_helper);
	167	void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper);
	168	void drm_fb_helper_release_fbi(struct drm_fb_helper *fb_helper);
38651674	169	void drm_fb_helper_fill_var(struct fb_info info, struct drm_fb_helper fb_helper,
785b93ef	170	uint32_t fb_width, uint32_t fb_height);
3632ef89 DA	171	void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
	172	uint32_t depth);
	173
47074ab7 AT	174	void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper);
47074ab7 AT	175
cbb1a82e AT	176	ssize_t drm_fb_helper_sys_read(struct fb_info info, char __user buf,
	177	size_t count, loff_t *ppos);
	178	ssize_t drm_fb_helper_sys_write(struct fb_info info, const char __user buf,
	179	size_t count, loff_t *ppos);
	180
742547b7 AT	181	void drm_fb_helper_sys_fillrect(struct fb_info *info,
	182	const struct fb_fillrect *rect);
	183	void drm_fb_helper_sys_copyarea(struct fb_info *info,
	184	const struct fb_copyarea *area);
	185	void drm_fb_helper_sys_imageblit(struct fb_info *info,
	186	const struct fb_image *image);
	187
	188	void drm_fb_helper_cfb_fillrect(struct fb_info *info,
	189	const struct fb_fillrect *rect);
	190	void drm_fb_helper_cfb_copyarea(struct fb_info *info,
	191	const struct fb_copyarea *area);
	192	void drm_fb_helper_cfb_imageblit(struct fb_info *info,
	193	const struct fb_image *image);
	194
fdefa58a AT	195	void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, int state);
fdefa58a AT	196
068143d3	197	int drm_fb_helper_setcmap(struct fb_cmap cmap, struct fb_info info);
d50ba256	198
7394371d	199	int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
01934c2a	200	int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
0b4c0f3f	201	int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
1a7aba7f JB	202	int drm_fb_helper_debug_enter(struct fb_info *info);
1a7aba7f JB	203	int drm_fb_helper_debug_leave(struct fb_info *info);
2f1046f3 JB	204	struct drm_display_mode *
	205	drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
	206	int width, int height);
	207	struct drm_display_mode *
	208	drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
	209	int width, int height);
8be48d92	210
65c2a89c DA	211	int drm_fb_helper_add_one_connector(struct drm_fb_helper fb_helper, struct drm_connector connector);
	212	int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
	213	struct drm_connector *connector);
a03fdcb1 AT	214	#else
	215	static inline void drm_fb_helper_prepare(struct drm_device *dev,
	216	struct drm_fb_helper *helper,
	217	const struct drm_fb_helper_funcs *funcs)
	218	{
	219	}
	220
	221	static inline int drm_fb_helper_init(struct drm_device *dev,
	222	struct drm_fb_helper *helper, int crtc_count,
	223	int max_conn)
	224	{
	225	return 0;
	226	}
	227
	228	static inline void drm_fb_helper_fini(struct drm_fb_helper *helper)
	229	{
	230	}
	231
	232	static inline int drm_fb_helper_blank(int blank, struct fb_info *info)
	233	{
	234	return 0;
	235	}
	236
	237	static inline int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
	238	struct fb_info *info)
	239	{
	240	return 0;
	241	}
	242
	243	static inline int drm_fb_helper_set_par(struct fb_info *info)
	244	{
	245	return 0;
	246	}
	247
	248	static inline int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
	249	struct fb_info *info)
	250	{
	251	return 0;
	252	}
	253
b7bdf0a8	254	static inline int
a03fdcb1 AT	255	drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper)
a03fdcb1 AT	256	{
b7bdf0a8	257	return 0;
a03fdcb1 AT	258	}
	259
	260	static inline struct fb_info *
	261	drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper)
	262	{
	263	return NULL;
	264	}
	265
	266	static inline void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper)
	267	{
	268	}
	269	static inline void drm_fb_helper_release_fbi(struct drm_fb_helper *fb_helper)
	270	{
	271	}
	272
	273	static inline void drm_fb_helper_fill_var(struct fb_info *info,
	274	struct drm_fb_helper *fb_helper,
	275	uint32_t fb_width, uint32_t fb_height)
	276	{
	277	}
	278
	279	static inline void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
	280	uint32_t depth)
	281	{
	282	}
	283
	284	static inline int drm_fb_helper_setcmap(struct fb_cmap *cmap,
	285	struct fb_info *info)
	286	{
	287	return 0;
	288	}
	289
	290	static inline void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper)
	291	{
	292	}
	293
	294	static inline ssize_t drm_fb_helper_sys_read(struct fb_info *info,
	295	char __user *buf, size_t count,
	296	loff_t *ppos)
	297	{
	298	return -ENODEV;
	299	}
	300
	301	static inline ssize_t drm_fb_helper_sys_write(struct fb_info *info,
	302	const char __user *buf,
	303	size_t count, loff_t *ppos)
	304	{
	305	return -ENODEV;
	306	}
	307
	308	static inline void drm_fb_helper_sys_fillrect(struct fb_info *info,
	309	const struct fb_fillrect *rect)
	310	{
	311	}
	312
	313	static inline void drm_fb_helper_sys_copyarea(struct fb_info *info,
	314	const struct fb_copyarea *area)
	315	{
	316	}
	317
	318	static inline void drm_fb_helper_sys_imageblit(struct fb_info *info,
	319	const struct fb_image *image)
	320	{
	321	}
322
323	static inline void drm_fb_helper_cfb_fillrect(struct fb_info *info,
324	const struct fb_fillrect *rect)
325	{
326	}
327
328	static inline void drm_fb_helper_cfb_copyarea(struct fb_info *info,
329	const struct fb_copyarea *area)
330	{
331	}
332
333	static inline void drm_fb_helper_cfb_imageblit(struct fb_info *info,
334	const struct fb_image *image)
335	{
336	}
337
338	static inline void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper,
339	int state)
340	{
341	}
342
343	static inline int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
344	{
345	return 0;
346	}
347
348	static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper,
349	int bpp_sel)
350	{
351	return 0;
352	}
353
354	static inline int
355	drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
356	{
357	return 0;
358	}
359
360	static inline int drm_fb_helper_debug_enter(struct fb_info *info)
361	{
362	return 0;
363	}
364
365	static inline int drm_fb_helper_debug_leave(struct fb_info *info)
366	{
367	return 0;
368	}
369
370	static inline struct drm_display_mode *
371	drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
372	int width, int height)
373	{
374	return NULL;
375	}
376
377	static inline struct drm_display_mode *
378	drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
379	int width, int height)
380	{
381	return NULL;
382	}
383
384	static inline int
385	drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
386	struct drm_connector *connector)
387	{
388	return 0;
389	}
390
391	static inline int
392	drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
393	struct drm_connector *connector)
394	{
395	return 0;
396	}
397	#endif
785b93ef	398	#endif