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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | /* * 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 |