126 lines
4.6 KiB
C
126 lines
4.6 KiB
C
/*
|
|
* 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 - driver callbacks for the fbdev emulation library
|
|
* @gamma_set: Set the given gamma lut register on the given crtc.
|
|
* @gamma_get: Read the given gamma lut register on the given crtc, used to
|
|
* save the current lut when force-restoring the fbdev for e.g.
|
|
* kdbg.
|
|
* @fb_probe: Driver callback to allocate and initialize the fbdev info
|
|
* structure. Futhermore it also needs to allocate the drm
|
|
* framebuffer used to back the fbdev.
|
|
* @initial_config: Setup an initial fbdev display configuration
|
|
*
|
|
* Driver callbacks used by the fbdev emulation helper library.
|
|
*/
|
|
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);
|
|
bool (*initial_config)(struct drm_fb_helper *fb_helper,
|
|
struct drm_fb_helper_crtc **crtcs,
|
|
struct drm_display_mode **modes,
|
|
bool *enabled, int width, int height);
|
|
};
|
|
|
|
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_device *dev;
|
|
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_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);
|
|
|
|
bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
|
|
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
|