[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

#include <linux/slow-work.h>

struct drm_fb_helper;

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

/* 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_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);

	void (*fb_output_status_changed)(struct drm_fb_helper *helper);

};

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_status_change_slow_work;
	bool poll_enabled;
	/* 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, bool polled);
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);

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,
				 bool polled);
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);

void drm_helper_fb_hpd_irq_event(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
4abe3520 DA	35	struct drm_fb_helper;
4abe3520 DA	36
785b93ef DA	37	struct drm_fb_helper_crtc {
	38	uint32_t crtc_id;
	39	struct drm_mode_set mode_set;
8be48d92	40	struct drm_display_mode *desired_mode;
785b93ef DA	41	};
785b93ef DA	42
d50ba256 DA	43	/* mode specified on the command line */
	44	struct drm_fb_helper_cmdline_mode {
	45	bool specified;
	46	bool refresh_specified;
	47	bool bpp_specified;
	48	int xres, yres;
	49	int bpp;
	50	int refresh;
	51	bool rb;
	52	bool interlace;
	53	bool cvt;
	54	bool margins;
	55	};
	56
38651674 DA	57	struct drm_fb_helper_surface_size {
	58	u32 fb_width;
	59	u32 fb_height;
	60	u32 surface_width;
	61	u32 surface_height;
	62	u32 surface_bpp;
	63	u32 surface_depth;
	64	};
	65
4abe3520 DA	66	struct drm_fb_helper_funcs {
	67	void (gamma_set)(struct drm_crtc crtc, u16 red, u16 green,
	68	u16 blue, int regno);
	69	void (gamma_get)(struct drm_crtc crtc, u16 red, u16 green,
	70	u16 *blue, int regno);
	71
	72	int (fb_probe)(struct drm_fb_helper helper,
	73	struct drm_fb_helper_surface_size *sizes);
	74
	75	void (fb_output_status_changed)(struct drm_fb_helper helper);
	76
	77	};
	78
d50ba256 DA	79	struct drm_fb_helper_connector {
d50ba256 DA	80	struct drm_fb_helper_cmdline_mode cmdline_mode;
0b4c0f3f	81	struct drm_connector *connector;
d50ba256 DA	82	};
d50ba256 DA	83
785b93ef DA	84	struct drm_fb_helper {
	85	struct drm_framebuffer *fb;
	86	struct drm_device *dev;
	87	struct drm_display_mode *mode;
	88	int crtc_count;
	89	struct drm_fb_helper_crtc *crtc_info;
0b4c0f3f DA	90	int connector_count;
0b4c0f3f DA	91	struct drm_fb_helper_connector **connector_info;
785b93ef DA	92	struct drm_fb_helper_funcs *funcs;
785b93ef DA	93	int conn_limit;
38651674 DA	94	struct fb_info *fbdev;
38651674 DA	95	u32 pseudo_palette[17];
785b93ef	96	struct list_head kernel_fb_list;
8be48d92	97
4abe3520	98	struct delayed_slow_work output_status_change_slow_work;
5c4426a7	99	bool poll_enabled;
4abe3520 DA	100	/* we got a hotplug but fbdev wasn't running the console
	101	delay until next set_par */
	102	bool delayed_hotplug;
785b93ef DA	103	};
785b93ef DA	104
8be48d92 DA	105	int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
	106	int preferred_bpp);
	107
4abe3520 DA	108	int drm_fb_helper_init(struct drm_device *dev,
	109	struct drm_fb_helper *helper, int crtc_count,
	110	int max_conn, bool polled);
	111	void drm_fb_helper_fini(struct drm_fb_helper *helper);
785b93ef DA	112	int drm_fb_helper_blank(int blank, struct fb_info *info);
	113	int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
	114	struct fb_info *info);
	115	int drm_fb_helper_set_par(struct fb_info *info);
	116	int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
	117	struct fb_info *info);
	118	int drm_fb_helper_setcolreg(unsigned regno,
	119	unsigned red,
	120	unsigned green,
	121	unsigned blue,
	122	unsigned transp,
	123	struct fb_info *info);
	124
	125	void drm_fb_helper_restore(void);
38651674	126	void drm_fb_helper_fill_var(struct fb_info info, struct drm_fb_helper fb_helper,
785b93ef	127	uint32_t fb_width, uint32_t fb_height);
068143d3 DA	128	void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
068143d3 DA	129	uint32_t depth);
785b93ef	130
068143d3	131	int drm_fb_helper_setcmap(struct fb_cmap cmap, struct fb_info info);
d50ba256	132
5c4426a7	133	bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper,
4abe3520 DA	134	bool polled);
4abe3520 DA	135	bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
0b4c0f3f	136	int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
8be48d92	137
4abe3520	138	void drm_helper_fb_hpd_irq_event(struct drm_fb_helper *fb_helper);
785b93ef	139	#endif