[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_crtc {
	uint32_t crtc_id;
	struct drm_mode_set mode_set;
};


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);
};

/* mode specified on the command line */
struct drm_fb_helper_cmdline_mode {
	bool specified;
	bool refresh_specified;
	bool bpp_specified;
	int xres, yres;
	int bpp;
	int refresh;
	bool rb;
	bool interlace;
	bool cvt;
	bool margins;
};

struct drm_fb_helper_connector {
	struct drm_fb_helper_cmdline_mode cmdline_mode;
};

struct drm_fb_helper {
	struct drm_framebuffer *fb;
	struct drm_device *dev;
	struct drm_display_mode *mode;
	int crtc_count;
	struct drm_fb_helper_crtc *crtc_info;
	struct drm_fb_helper_funcs *funcs;
	int conn_limit;
	struct list_head kernel_fb_list;
};

int drm_fb_helper_single_fb_probe(struct drm_device *dev,
				  int preferred_bpp,
				  int (*fb_create)(struct drm_device *dev,
						   uint32_t fb_width,
						   uint32_t fb_height,
						   uint32_t surface_width,
						   uint32_t surface_height,
						   uint32_t surface_depth,
						   uint32_t surface_bpp,
						   struct drm_framebuffer **fb_ptr));
int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count,
				  int max_conn);
void drm_fb_helper_free(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);

void drm_fb_helper_restore(void);
void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb,
			    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_add_connector(struct drm_connector *connector);
int drm_fb_helper_parse_command_line(struct drm_device *dev);
int drm_fb_helper_setcmap(struct fb_cmap *cmap, 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
	33	struct drm_fb_helper_crtc {
	34	uint32_t crtc_id;
	35	struct drm_mode_set mode_set;
	36	};
	37
d50ba256	38
785b93ef DA	39	struct drm_fb_helper_funcs {
	40	void (gamma_set)(struct drm_crtc crtc, u16 red, u16 green,
	41	u16 blue, int regno);
b8c00ac5 DA	42	void (gamma_get)(struct drm_crtc crtc, u16 red, u16 green,
b8c00ac5 DA	43	u16 *blue, int regno);
785b93ef DA	44	};
785b93ef DA	45
d50ba256 DA	46	/* mode specified on the command line */
	47	struct drm_fb_helper_cmdline_mode {
	48	bool specified;
	49	bool refresh_specified;
	50	bool bpp_specified;
	51	int xres, yres;
	52	int bpp;
	53	int refresh;
	54	bool rb;
	55	bool interlace;
	56	bool cvt;
	57	bool margins;
	58	};
	59
	60	struct drm_fb_helper_connector {
	61	struct drm_fb_helper_cmdline_mode cmdline_mode;
	62	};
	63
785b93ef DA	64	struct drm_fb_helper {
	65	struct drm_framebuffer *fb;
	66	struct drm_device *dev;
	67	struct drm_display_mode *mode;
	68	int crtc_count;
	69	struct drm_fb_helper_crtc *crtc_info;
	70	struct drm_fb_helper_funcs *funcs;
	71	int conn_limit;
	72	struct list_head kernel_fb_list;
	73	};
	74
	75	int drm_fb_helper_single_fb_probe(struct drm_device *dev,
b8c00ac5	76	int preferred_bpp,
785b93ef DA	77	int (fb_create)(struct drm_device dev,
	78	uint32_t fb_width,
	79	uint32_t fb_height,
	80	uint32_t surface_width,
	81	uint32_t surface_height,
d50ba256 DA	82	uint32_t surface_depth,
d50ba256 DA	83	uint32_t surface_bpp,
785b93ef DA	84	struct drm_framebuffer **fb_ptr));
	85	int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count,
	86	int max_conn);
	87	void drm_fb_helper_free(struct drm_fb_helper *helper);
	88	int drm_fb_helper_blank(int blank, struct fb_info *info);
	89	int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
	90	struct fb_info *info);
	91	int drm_fb_helper_set_par(struct fb_info *info);
	92	int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
	93	struct fb_info *info);
	94	int drm_fb_helper_setcolreg(unsigned regno,
	95	unsigned red,
	96	unsigned green,
	97	unsigned blue,
	98	unsigned transp,
	99	struct fb_info *info);
	100
	101	void drm_fb_helper_restore(void);
	102	void drm_fb_helper_fill_var(struct fb_info info, struct drm_framebuffer fb,
	103	uint32_t fb_width, uint32_t fb_height);
068143d3 DA	104	void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
068143d3 DA	105	uint32_t depth);
785b93ef	106
d50ba256 DA	107	int drm_fb_helper_add_connector(struct drm_connector *connector);
d50ba256 DA	108	int drm_fb_helper_parse_command_line(struct drm_device *dev);
068143d3	109	int drm_fb_helper_setcmap(struct fb_cmap cmap, struct fb_info info);
d50ba256	110
785b93ef	111	#endif