[linux-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

#include <linux/slow-work.h>

struct drm_fb_helper_crtc {
	uint32_t crtc_id;
	struct drm_mode_set mode_set;
	struct drm_display_mode *desired_mode;
};


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_surface_size {
	u32 fb_width;
	u32 fb_height;
	u32 surface_width;
	u32 surface_height;
	u32 surface_bpp;
	u32 surface_depth;
};

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

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;
	int connector_count;
	struct drm_fb_helper_connector **connector_info;
	struct drm_fb_helper_funcs *funcs;
	int conn_limit;
	struct fb_info *fbdev;
	u32 pseudo_palette[17];
	struct list_head kernel_fb_list;

	struct delayed_slow_work output_poll_slow_work;
	bool poll_enabled;
	int (*fb_probe)(struct drm_fb_helper *helper,
			struct drm_fb_helper_surface_size *sizes);

	void (*fb_poll_changed)(struct drm_fb_helper *helper);
};

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

int drm_fb_helper_init_crtc_count(struct drm_device *dev,
				  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_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);

bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper,
				 u32 max_width, u32 max_height, bool polled);
bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper);
int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);

void drm_fb_helper_poll_init(struct drm_fb_helper *fb_helper);
void drm_fb_helper_poll_fini(struct drm_fb_helper *fb_helper);
#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
5c4426a7 DA	33	#include <linux/slow-work.h>
5c4426a7 DA	34
785b93ef DA	35	struct drm_fb_helper_crtc {
	36	uint32_t crtc_id;
	37	struct drm_mode_set mode_set;
8be48d92	38	struct drm_display_mode *desired_mode;
785b93ef DA	39	};
785b93ef DA	40
d50ba256	41
785b93ef DA	42	struct drm_fb_helper_funcs {
	43	void (gamma_set)(struct drm_crtc crtc, u16 red, u16 green,
	44	u16 blue, int regno);
b8c00ac5 DA	45	void (gamma_get)(struct drm_crtc crtc, u16 red, u16 green,
b8c00ac5 DA	46	u16 *blue, int regno);
785b93ef DA	47	};
785b93ef DA	48
d50ba256 DA	49	/* mode specified on the command line */
	50	struct drm_fb_helper_cmdline_mode {
	51	bool specified;
	52	bool refresh_specified;
	53	bool bpp_specified;
	54	int xres, yres;
	55	int bpp;
	56	int refresh;
	57	bool rb;
	58	bool interlace;
	59	bool cvt;
	60	bool margins;
	61	};
	62
38651674 DA	63	struct drm_fb_helper_surface_size {
	64	u32 fb_width;
	65	u32 fb_height;
	66	u32 surface_width;
	67	u32 surface_height;
	68	u32 surface_bpp;
	69	u32 surface_depth;
	70	};
	71
d50ba256 DA	72	struct drm_fb_helper_connector {
d50ba256 DA	73	struct drm_fb_helper_cmdline_mode cmdline_mode;
0b4c0f3f	74	struct drm_connector *connector;
d50ba256 DA	75	};
d50ba256 DA	76
785b93ef DA	77	struct drm_fb_helper {
	78	struct drm_framebuffer *fb;
	79	struct drm_device *dev;
	80	struct drm_display_mode *mode;
	81	int crtc_count;
	82	struct drm_fb_helper_crtc *crtc_info;
0b4c0f3f DA	83	int connector_count;
0b4c0f3f DA	84	struct drm_fb_helper_connector **connector_info;
785b93ef DA	85	struct drm_fb_helper_funcs *funcs;
785b93ef DA	86	int conn_limit;
38651674 DA	87	struct fb_info *fbdev;
38651674 DA	88	u32 pseudo_palette[17];
785b93ef	89	struct list_head kernel_fb_list;
8be48d92	90
5c4426a7 DA	91	struct delayed_slow_work output_poll_slow_work;
5c4426a7 DA	92	bool poll_enabled;
8be48d92 DA	93	int (fb_probe)(struct drm_fb_helper helper,
8be48d92 DA	94	struct drm_fb_helper_surface_size *sizes);
5c4426a7 DA	95
5c4426a7 DA	96	void (fb_poll_changed)(struct drm_fb_helper helper);
785b93ef DA	97	};
785b93ef DA	98
8be48d92 DA	99	int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
	100	int preferred_bpp);
	101
	102	int drm_fb_helper_init_crtc_count(struct drm_device *dev,
	103	struct drm_fb_helper *helper, int crtc_count,
785b93ef DA	104	int max_conn);
	105	void drm_fb_helper_free(struct drm_fb_helper *helper);
	106	int drm_fb_helper_blank(int blank, struct fb_info *info);
	107	int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
	108	struct fb_info *info);
	109	int drm_fb_helper_set_par(struct fb_info *info);
	110	int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
	111	struct fb_info *info);
	112	int drm_fb_helper_setcolreg(unsigned regno,
	113	unsigned red,
	114	unsigned green,
	115	unsigned blue,
	116	unsigned transp,
	117	struct fb_info *info);
	118
	119	void drm_fb_helper_restore(void);
38651674	120	void drm_fb_helper_fill_var(struct fb_info info, struct drm_fb_helper fb_helper,
785b93ef	121	uint32_t fb_width, uint32_t fb_height);
068143d3 DA	122	void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
068143d3 DA	123	uint32_t depth);
785b93ef	124
068143d3	125	int drm_fb_helper_setcmap(struct fb_cmap cmap, struct fb_info info);
d50ba256	126
5c4426a7 DA	127	bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper,
5c4426a7 DA	128	u32 max_width, u32 max_height, bool polled);
8be48d92	129	bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper);
0b4c0f3f	130	int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
8be48d92	131
5c4426a7 DA	132	void drm_fb_helper_poll_init(struct drm_fb_helper *fb_helper);
5c4426a7 DA	133	void drm_fb_helper_poll_fini(struct drm_fb_helper *fb_helper);
785b93ef	134	#endif