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/*
* 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
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