cregit-Linux how code gets into the kernel

Release 4.11 drivers/video/fbdev/atafb_mfb.c

/*
 *  linux/drivers/video/mfb.c -- Low level frame buffer operations for
 *                               monochrome
 *
 *      Created 5 Apr 1997 by Geert Uytterhoeven
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License.  See the file COPYING in the main directory of this archive for
 *  more details.
 */

#include <linux/module.h>
#include <linux/string.h>
#include <linux/fb.h>

#include "atafb.h"
#include "atafb_utils.h"


    /*
     *  Monochrome
     */


void atafb_mfb_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy, int dx, int height, int width) { u8 *src, *dest; u_int rows; if (sx == 0 && dx == 0 && width == next_line) { src = (u8 *)info->screen_base + sy * (width >> 3); dest = (u8 *)info->screen_base + dy * (width >> 3); fb_memmove(dest, src, height * (width >> 3)); } else if (dy <= sy) { src = (u8 *)info->screen_base + sy * next_line + (sx >> 3); dest = (u8 *)info->screen_base + dy * next_line + (dx >> 3); for (rows = height; rows--;) { fb_memmove(dest, src, width >> 3); src += next_line; dest += next_line; } } else { src = (u8 *)info->screen_base + (sy + height - 1) * next_line + (sx >> 3); dest = (u8 *)info->screen_base + (dy + height - 1) * next_line + (dx >> 3); for (rows = height; rows--;) { fb_memmove(dest, src, width >> 3); src -= next_line; dest -= next_line; } } }

Contributors

PersonTokensPropCommitsCommitProp
Michael Schmitz274100.00%1100.00%
Total274100.00%1100.00%


void atafb_mfb_fillrect(struct fb_info *info, u_long next_line, u32 color, int sy, int sx, int height, int width) { u8 *dest; u_int rows; dest = (u8 *)info->screen_base + sy * next_line + (sx >> 3); if (sx == 0 && width == next_line) { if (color) fb_memset255(dest, height * (width >> 3)); else fb_memclear(dest, height * (width >> 3)); } else { for (rows = height; rows--; dest += next_line) { if (color) fb_memset255(dest, width >> 3); else fb_memclear_small(dest, width >> 3); } } }

Contributors

PersonTokensPropCommitsCommitProp
Michael Schmitz139100.00%1100.00%
Total139100.00%1100.00%


void atafb_mfb_linefill(struct fb_info *info, u_long next_line, int dy, int dx, u32 width, const u8 *data, u32 bgcolor, u32 fgcolor) { u8 *dest; u_int rows; dest = (u8 *)info->screen_base + dy * next_line + (dx >> 3); for (rows = width / 8; rows--; /* check margins */ ) { // use fast_memmove or fb_memmove *dest++ = *data++; } }

Contributors

PersonTokensPropCommitsCommitProp
Michael Schmitz84100.00%1100.00%
Total84100.00%1100.00%

#ifdef MODULE MODULE_LICENSE("GPL");
int init_module(void) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Michael Schmitz10100.00%1100.00%
Total10100.00%1100.00%


void cleanup_module(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Michael Schmitz6100.00%1100.00%
Total6100.00%1100.00%

#endif /* MODULE */ /* * Visible symbols for modules */ EXPORT_SYMBOL(atafb_mfb_copyarea); EXPORT_SYMBOL(atafb_mfb_fillrect); EXPORT_SYMBOL(atafb_mfb_linefill);

Overall Contributors

PersonTokensPropCommitsCommitProp
Michael Schmitz557100.00%1100.00%
Total557100.00%1100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.