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_crtc { 34 uint32_t crtc_id; 35 struct drm_mode_set mode_set; 36 }; 37 38 struct drm_fb_helper_funcs { 39 void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green, 40 u16 blue, int regno); 41 }; 42 43 struct drm_fb_helper { 44 struct drm_framebuffer *fb; 45 struct drm_device *dev; 46 struct drm_display_mode *mode; 47 int crtc_count; 48 struct drm_fb_helper_crtc *crtc_info; 49 struct drm_fb_helper_funcs *funcs; 50 int conn_limit; 51 struct list_head kernel_fb_list; 52 }; 53 54 int drm_fb_helper_single_fb_probe(struct drm_device *dev, 55 int (*fb_create)(struct drm_device *dev, 56 uint32_t fb_width, 57 uint32_t fb_height, 58 uint32_t surface_width, 59 uint32_t surface_height, 60 struct drm_framebuffer **fb_ptr)); 61 int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count, 62 int max_conn); 63 void drm_fb_helper_free(struct drm_fb_helper *helper); 64 int drm_fb_helper_blank(int blank, struct fb_info *info); 65 int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, 66 struct fb_info *info); 67 int drm_fb_helper_set_par(struct fb_info *info); 68 int drm_fb_helper_check_var(struct fb_var_screeninfo *var, 69 struct fb_info *info); 70 int drm_fb_helper_setcolreg(unsigned regno, 71 unsigned red, 72 unsigned green, 73 unsigned blue, 74 unsigned transp, 75 struct fb_info *info); 76 77 void drm_fb_helper_restore(void); 78 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb, 79 uint32_t fb_width, uint32_t fb_height); 80 void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch); 81 82 #endif 83