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/include/drm/drm_fb_helper.h

https://bitbucket.org/cyanogenmod/android_kernel_asus_tf300t
C Header | 122 lines | 76 code | 15 blank | 31 comment | 0 complexity | 3919e020f0fa965c0eb9dca1ddb578a5 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
  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
 33struct drm_fb_helper;
 34
 35#include <linux/kgdb.h>
 36
 37struct drm_fb_helper_crtc {
 38	uint32_t crtc_id;
 39	struct drm_mode_set mode_set;
 40	struct drm_display_mode *desired_mode;
 41};
 42
 43struct drm_fb_helper_surface_size {
 44	u32 fb_width;
 45	u32 fb_height;
 46	u32 surface_width;
 47	u32 surface_height;
 48	u32 surface_bpp;
 49	u32 surface_depth;
 50};
 51
 52struct drm_fb_helper_funcs {
 53	void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
 54			  u16 blue, int regno);
 55	void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
 56			  u16 *blue, int regno);
 57
 58	int (*fb_probe)(struct drm_fb_helper *helper,
 59			struct drm_fb_helper_surface_size *sizes);
 60};
 61
 62struct drm_fb_helper_connector {
 63	struct drm_connector *connector;
 64	struct drm_cmdline_mode cmdline_mode;
 65};
 66
 67struct drm_fb_helper {
 68	struct drm_framebuffer *fb;
 69	struct drm_framebuffer *saved_fb;
 70	struct drm_device *dev;
 71	struct drm_display_mode *mode;
 72	int crtc_count;
 73	struct drm_fb_helper_crtc *crtc_info;
 74	int connector_count;
 75	struct drm_fb_helper_connector **connector_info;
 76	struct drm_fb_helper_funcs *funcs;
 77	int conn_limit;
 78	struct fb_info *fbdev;
 79	u32 pseudo_palette[17];
 80	struct list_head kernel_fb_list;
 81
 82	/* we got a hotplug but fbdev wasn't running the console
 83	   delay until next set_par */
 84	bool delayed_hotplug;
 85};
 86
 87int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
 88				  int preferred_bpp);
 89
 90int drm_fb_helper_init(struct drm_device *dev,
 91		       struct drm_fb_helper *helper, int crtc_count,
 92		       int max_conn);
 93void drm_fb_helper_fini(struct drm_fb_helper *helper);
 94int drm_fb_helper_blank(int blank, struct fb_info *info);
 95int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
 96			      struct fb_info *info);
 97int drm_fb_helper_set_par(struct fb_info *info);
 98int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
 99			    struct fb_info *info);
100int drm_fb_helper_setcolreg(unsigned regno,
101			    unsigned red,
102			    unsigned green,
103			    unsigned blue,
104			    unsigned transp,
105			    struct fb_info *info);
106
107bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
108void drm_fb_helper_restore(void);
109void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
110			    uint32_t fb_width, uint32_t fb_height);
111void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
112			    uint32_t depth);
113
114int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
115
116int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
117bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
118int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
119int drm_fb_helper_debug_enter(struct fb_info *info);
120int drm_fb_helper_debug_leave(struct fb_info *info);
121
122#endif