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 33 struct drm_fb_helper; 34 35 struct drm_fb_helper_crtc { 36 uint32_t crtc_id; 37 struct drm_mode_set mode_set; 38 struct drm_display_mode *desired_mode; 39 }; 40 41 /* mode specified on the command line */ 42 struct drm_fb_helper_cmdline_mode { 43 bool specified; 44 bool refresh_specified; 45 bool bpp_specified; 46 int xres, yres; 47 int bpp; 48 int refresh; 49 bool rb; 50 bool interlace; 51 bool cvt; 52 bool margins; 53 }; 54 55 struct drm_fb_helper_surface_size { 56 u32 fb_width; 57 u32 fb_height; 58 u32 surface_width; 59 u32 surface_height; 60 u32 surface_bpp; 61 u32 surface_depth; 62 }; 63 64 struct drm_fb_helper_funcs { 65 void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green, 66 u16 blue, int regno); 67 void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green, 68 u16 *blue, int regno); 69 70 int (*fb_probe)(struct drm_fb_helper *helper, 71 struct drm_fb_helper_surface_size *sizes); 72 }; 73 74 struct drm_fb_helper_connector { 75 struct drm_fb_helper_cmdline_mode cmdline_mode; 76 struct drm_connector *connector; 77 }; 78 79 struct drm_fb_helper { 80 struct drm_framebuffer *fb; 81 struct drm_device *dev; 82 struct drm_display_mode *mode; 83 int crtc_count; 84 struct drm_fb_helper_crtc *crtc_info; 85 int connector_count; 86 struct drm_fb_helper_connector **connector_info; 87 struct drm_fb_helper_funcs *funcs; 88 int conn_limit; 89 struct fb_info *fbdev; 90 u32 pseudo_palette[17]; 91 struct list_head kernel_fb_list; 92 93 /* we got a hotplug but fbdev wasn't running the console 94 delay until next set_par */ 95 bool delayed_hotplug; 96 }; 97 98 int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper, 99 int preferred_bpp); 100 101 int drm_fb_helper_init(struct drm_device *dev, 102 struct drm_fb_helper *helper, int crtc_count, 103 int max_conn); 104 void drm_fb_helper_fini(struct drm_fb_helper *helper); 105 int drm_fb_helper_blank(int blank, struct fb_info *info); 106 int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, 107 struct fb_info *info); 108 int drm_fb_helper_set_par(struct fb_info *info); 109 int drm_fb_helper_check_var(struct fb_var_screeninfo *var, 110 struct fb_info *info); 111 int drm_fb_helper_setcolreg(unsigned regno, 112 unsigned red, 113 unsigned green, 114 unsigned blue, 115 unsigned transp, 116 struct fb_info *info); 117 118 void drm_fb_helper_restore(void); 119 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, 120 uint32_t fb_width, uint32_t fb_height); 121 void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, 122 uint32_t depth); 123 124 int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info); 125 126 bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); 127 bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel); 128 int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper); 129 130 #endif 131