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 39 struct drm_fb_helper_funcs { 40 void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green, 41 u16 blue, int regno); 42 void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green, 43 u16 *blue, int regno); 44 }; 45 46 /* mode specified on the command line */ 47 struct drm_fb_helper_cmdline_mode { 48 bool specified; 49 bool refresh_specified; 50 bool bpp_specified; 51 int xres, yres; 52 int bpp; 53 int refresh; 54 bool rb; 55 bool interlace; 56 bool cvt; 57 bool margins; 58 }; 59 60 struct drm_fb_helper_connector { 61 struct drm_fb_helper_cmdline_mode cmdline_mode; 62 }; 63 64 struct drm_fb_helper { 65 struct drm_framebuffer *fb; 66 struct drm_device *dev; 67 struct drm_display_mode *mode; 68 int crtc_count; 69 struct drm_fb_helper_crtc *crtc_info; 70 struct drm_fb_helper_funcs *funcs; 71 int conn_limit; 72 struct list_head kernel_fb_list; 73 }; 74 75 int drm_fb_helper_single_fb_probe(struct drm_device *dev, 76 int preferred_bpp, 77 int (*fb_create)(struct drm_device *dev, 78 uint32_t fb_width, 79 uint32_t fb_height, 80 uint32_t surface_width, 81 uint32_t surface_height, 82 uint32_t surface_depth, 83 uint32_t surface_bpp, 84 struct drm_framebuffer **fb_ptr)); 85 int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count, 86 int max_conn); 87 void drm_fb_helper_free(struct drm_fb_helper *helper); 88 int drm_fb_helper_blank(int blank, struct fb_info *info); 89 int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, 90 struct fb_info *info); 91 int drm_fb_helper_set_par(struct fb_info *info); 92 int drm_fb_helper_check_var(struct fb_var_screeninfo *var, 93 struct fb_info *info); 94 int drm_fb_helper_setcolreg(unsigned regno, 95 unsigned red, 96 unsigned green, 97 unsigned blue, 98 unsigned transp, 99 struct fb_info *info); 100 101 void drm_fb_helper_restore(void); 102 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb, 103 uint32_t fb_width, uint32_t fb_height); 104 void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, 105 uint32_t depth); 106 107 int drm_fb_helper_add_connector(struct drm_connector *connector); 108 int drm_fb_helper_parse_command_line(struct drm_device *dev); 109 int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info); 110 111 #endif 112