Contiki 2.6
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00001 /* 00002 * Copyright (c) 2007, Takahide Matsutsuka. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above 00011 * copyright notice, this list of conditions and the following 00012 * disclaimer in the documentation and/or other materials provided 00013 * with the distribution. 00014 * 3. The name of the author may not be used to endorse or promote 00015 * products derived from this software without specific prior 00016 * written permission. 00017 * 00018 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 00019 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00020 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00021 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 00022 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00023 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 00024 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00025 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 00026 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00027 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00029 * 00030 * $Id: libconio_z80.c,v 1.1 2007/09/19 12:48:26 matsutsuka Exp $ 00031 * 00032 */ 00033 /* 00034 * \file 00035 * Arcitecture-depend libconio module, which supposes 00036 * the machine has character VRAM and optional attribute VRAM 00037 * on the main memory. 00038 * \author 00039 * Takahide Matsutsuka <markn@markn.org> 00040 */ 00041 00042 #include "contiki.h" 00043 #include "sys/log.h" 00044 #include "libconio.h" 00045 #include "libconio_z80.h" 00046 00047 /*---------------------------------------------------------------------------*/ 00048 static void scroll() { 00049 unsigned char y; 00050 uint16_t src, dst; 00051 for (y = 0; y < LIBCONIO_CONF_SCREEN_HEIGHT - 1; y++) { 00052 dst = LIBCONIO_VRAM_OFFSET(0, y); 00053 src = LIBCONIO_VRAM_OFFSET(0, y + 1); 00054 memcpy(LIBCONIO_VRAM_CHAR + dst, 00055 LIBCONIO_VRAM_CHAR + src, 00056 LIBCONIO_CONF_SCREEN_WIDTH); 00057 #ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED 00058 memcpy(LIBCONIO_VRAM_ATTR + dst, 00059 LIBCONIO_VRAM_ATTR + src, 00060 LIBCONIO_CONF_SCREEN_WIDTH); 00061 #endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */ 00062 } 00063 dst = LIBCONIO_VRAM_OFFSET(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1); 00064 memset(LIBCONIO_VRAM_CHAR + dst, ' ', 00065 LIBCONIO_CONF_SCREEN_WIDTH); 00066 #ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED 00067 memset(LIBCONIO_VRAM_ATTR + dst, LIBCONIO_COLOR_NORMAL, 00068 LIBCONIO_CONF_SCREEN_WIDTH); 00069 #endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */ 00070 00071 gotoxy(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1); 00072 } 00073 /*---------------------------------------------------------------------------*/ 00074 /* make sure that the position is inside screen */ 00075 static void adjust(unsigned char *x, unsigned char *y) { 00076 if (*x > LIBCONIO_CONF_SCREEN_WIDTH) { 00077 *y += *x / LIBCONIO_CONF_SCREEN_WIDTH; 00078 *x = *x % LIBCONIO_CONF_SCREEN_WIDTH; 00079 gotoxy(*x, *y); 00080 } 00081 } 00082 /*---------------------------------------------------------------------------*/ 00083 void ctk_arch_draw_char(char c, 00084 unsigned char xpos, 00085 unsigned char ypos, 00086 unsigned char reversed, 00087 unsigned char color) { 00088 uint16_t off; 00089 adjust(&xpos, &ypos); 00090 00091 off = LIBCONIO_VRAM_OFFSET(xpos, ypos); 00092 if (off >= LIBCONIO_VRAM_OFFSET_MAX) { 00093 scroll(); 00094 off = LIBCONIO_VRAM_OFFSET(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1); 00095 } 00096 *(char *)(LIBCONIO_VRAM_CHAR + off) = c; 00097 #ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED 00098 *(char *)(LIBCONIO_VRAM_ATTR + off) = reversed ? 00099 LIBCONIO_COLOR_REVERSED : LIBCONIO_COLOR_NORMAL; 00100 #endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */ 00101 } 00102 /*---------------------------------------------------------------------------*/