1 /* 2 * Copyright 2007 Freescale Semiconductor, Inc. 3 * York Sun <yorksun@freescale.com> 4 * 5 * FSL DIU Framebuffer driver 6 * 7 * See file CREDITS for list of people who contributed to this 8 * project. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; either version 2 of 13 * the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 23 * MA 02111-1307 USA 24 */ 25 26 struct fb_var_screeninfo { 27 unsigned int xres; /* visible resolution */ 28 unsigned int yres; 29 30 unsigned int bits_per_pixel; /* guess what */ 31 32 /* Timing: All values in pixclocks, except pixclock (of course) */ 33 unsigned int pixclock; /* pixel clock in ps (pico seconds) */ 34 unsigned int left_margin; /* time from sync to picture */ 35 unsigned int right_margin; /* time from picture to sync */ 36 unsigned int upper_margin; /* time from sync to picture */ 37 unsigned int lower_margin; 38 unsigned int hsync_len; /* length of horizontal sync */ 39 unsigned int vsync_len; /* length of vertical sync */ 40 unsigned int sync; /* see FB_SYNC_* */ 41 unsigned int vmode; /* see FB_VMODE_* */ 42 unsigned int rotate; /* angle we rotate counter clockwise */ 43 }; 44 45 struct fb_info { 46 struct fb_var_screeninfo var; /* Current var */ 47 unsigned long smem_start; /* Start of frame buffer mem */ 48 /* (physical address) */ 49 unsigned int smem_len; /* Length of frame buffer mem */ 50 unsigned int type; /* see FB_TYPE_* */ 51 unsigned int line_length; /* length of a line in bytes */ 52 53 char *screen_base; 54 unsigned long screen_size; 55 }; 56 57 58 extern char *fsl_fb_open(struct fb_info **info); 59 int fsl_diu_init(int xres, unsigned int pixel_format, int gamma_fix); 60 int platform_diu_init(unsigned int *xres, unsigned int *yres); 61