[linux-2.6-block.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_helper_crtc {
	struct drm_mode_set mode_set;
	struct drm_display_mode *desired_mode;
};

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 {
	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);
};

struct drm_fb_helper_connector {
	struct drm_connector *connector;
	struct drm_cmdline_mode cmdline_mode;
};

struct drm_fb_helper {
	struct drm_framebuffer *fb;
	struct drm_framebuffer *saved_fb;
	struct drm_device *dev;
	struct drm_display_mode *mode;
	int crtc_count;
	struct drm_fb_helper_crtc *crtc_info;
	int connector_count;
	struct drm_fb_helper_connector **connector_info;
	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;
};

int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
				  int preferred_bpp);

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_setcolreg(unsigned regno,
			    unsigned red,
			    unsigned green,
			    unsigned blue,
			    unsigned transp,
			    struct fb_info *info);

bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
void drm_fb_helper_restore(void);
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);

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);
bool 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);

#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
785b93ef	37	struct drm_fb_helper_crtc {
785b93ef	38	struct drm_mode_set mode_set;
8be48d92	39	struct drm_display_mode *desired_mode;
785b93ef DA	40	};
785b93ef DA	41
38651674 DA	42	struct drm_fb_helper_surface_size {
	43	u32 fb_width;
	44	u32 fb_height;
	45	u32 surface_width;
	46	u32 surface_height;
	47	u32 surface_bpp;
	48	u32 surface_depth;
	49	};
	50
4abe3520 DA	51	struct drm_fb_helper_funcs {
	52	void (gamma_set)(struct drm_crtc crtc, u16 red, u16 green,
	53	u16 blue, int regno);
	54	void (gamma_get)(struct drm_crtc crtc, u16 red, u16 green,
	55	u16 *blue, int regno);
	56
	57	int (fb_probe)(struct drm_fb_helper helper,
	58	struct drm_fb_helper_surface_size *sizes);
4abe3520 DA	59	};
4abe3520 DA	60
d50ba256	61	struct drm_fb_helper_connector {
0b4c0f3f	62	struct drm_connector *connector;
1794d257	63	struct drm_cmdline_mode cmdline_mode;
d50ba256 DA	64	};
d50ba256 DA	65
785b93ef DA	66	struct drm_fb_helper {
785b93ef DA	67	struct drm_framebuffer *fb;
1a7aba7f	68	struct drm_framebuffer *saved_fb;
785b93ef DA	69	struct drm_device *dev;
	70	struct drm_display_mode *mode;
	71	int crtc_count;
	72	struct drm_fb_helper_crtc *crtc_info;
0b4c0f3f DA	73	int connector_count;
0b4c0f3f DA	74	struct drm_fb_helper_connector **connector_info;
785b93ef	75	struct drm_fb_helper_funcs *funcs;
38651674 DA	76	struct fb_info *fbdev;
38651674 DA	77	u32 pseudo_palette[17];
785b93ef	78	struct list_head kernel_fb_list;
8be48d92	79
4abe3520 DA	80	/* we got a hotplug but fbdev wasn't running the console
	81	delay until next set_par */
	82	bool delayed_hotplug;
785b93ef DA	83	};
785b93ef DA	84
8be48d92 DA	85	int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
	86	int preferred_bpp);
	87
4abe3520 DA	88	int drm_fb_helper_init(struct drm_device *dev,
4abe3520 DA	89	struct drm_fb_helper *helper, int crtc_count,
eb1f8e4f	90	int max_conn);
4abe3520	91	void drm_fb_helper_fini(struct drm_fb_helper *helper);
785b93ef DA	92	int drm_fb_helper_blank(int blank, struct fb_info *info);
	93	int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
	94	struct fb_info *info);
	95	int drm_fb_helper_set_par(struct fb_info *info);
	96	int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
	97	struct fb_info *info);
	98	int drm_fb_helper_setcolreg(unsigned regno,
	99	unsigned red,
	100	unsigned green,
	101	unsigned blue,
	102	unsigned transp,
	103	struct fb_info *info);
	104
e8e7a2b8	105	bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
785b93ef	106	void drm_fb_helper_restore(void);
38651674	107	void drm_fb_helper_fill_var(struct fb_info info, struct drm_fb_helper fb_helper,
785b93ef	108	uint32_t fb_width, uint32_t fb_height);
3632ef89 DA	109	void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
	110	uint32_t depth);
	111
068143d3	112	int drm_fb_helper_setcmap(struct fb_cmap cmap, struct fb_info info);
d50ba256	113
7394371d	114	int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
4abe3520	115	bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
0b4c0f3f	116	int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
1a7aba7f JB	117	int drm_fb_helper_debug_enter(struct fb_info *info);
1a7aba7f JB	118	int drm_fb_helper_debug_leave(struct fb_info *info);
8be48d92	119
785b93ef	120	#endif