arch/arm/mach-at91sam7/libs/ledshow/ledshow.c

   1 /*
   2  * ledshow.c
   3  *
   4  * An open implementation of Profibus DP functionalities.
   5  * Led show routines.
   6  *
   7  * Copyright (c) 2009 Tran Duy Khanh. All rights reserved.
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the
  11  * Free Software Foundation; either version 2, or (at your option) any
  12  * later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * Project homepage:
  20  *
  21  *      http://www.pbmaster.org
  22  *      http://pbmaster.sourceforge.net
  23  *
  24  * Contact information:
  25  *
  26  *      Tran Duy Khanh  <tran@pbmaster.org>
  27  *                      <trandk1@users.sourceforge.net>
  28  */
  29
  30 #include "ledshow.h"
  31
  32 void led_show1(struct ledshow *ls)
  33 {
  34         unsigned char i;
  35
  36         ls->pattern = 0x01;
  37         ls->set(ls->pattern);
  38
  39         for (i=0; i<ls->led_cnt; i++) {
  40                 ls->set(ls->pattern);
  41                 ls->pattern = ls->pattern << 1;
  42                 ls->wait(1);
  43         }
  44
  45         for (i=0; i<ls->led_cnt; i++) {
  46                 ls->set((0x01 << (ls->led_cnt-1)));
  47                 ls->wait(1);
  48                 ls->set(0x0);
  49                 ls->wait(1);
  50         }
  51
  52         ls->pattern = (0x01 << (ls->led_cnt-1));
  53         for (i=0; i<ls->led_cnt; i++) {
  54                 ls->set(ls->pattern);
  55                 ls->pattern = ls->pattern >> 1;
  56                 ls->wait(1);
  57         }
  58
  59         for (i=0; i<ls->led_cnt; i++) {
  60                 ls->set(0x01);
  61                 ls->wait(1);
  62                 ls->set(0x0);
  63                 ls->wait(1);
  64         }
  65 }
  66
  67 void led_show2(struct ledshow *ls)
  68 {
  69         unsigned char i;
  70
  71         ls->pattern = 0x01;
  72         ls->set(ls->pattern);
  73
  74         for (i=0; i<ls->led_cnt; i++) {
  75                 ls->set(ls->pattern);
  76                 ls->pattern = (ls->pattern << 1) | 0x01;
  77                 ls->wait(2);
  78         }
  79
  80         ls->pattern = (0x01 << (ls->led_cnt-1));
  81         for (i=0; i<ls->led_cnt; i++) {
  82                 ls->set(ls->pattern);
  83                 ls->pattern = (ls->pattern >> 1) | (0x01 << (ls->led_cnt-1));
  84                 ls->wait(2);
  85         }
  86 }
  87
  88 void led_show3(struct ledshow *ls)
  89 {
  90         unsigned char i;
  91
  92         for (i=0; i<ls->led_cnt; i++) {
  93                 ls->set(0x99);
  94                 ls->wait(1);
  95                 ls->set(0x0);
  96                 ls->wait(1);
  97         }
  98
  99         for (i=0; i<ls->led_cnt; i++) {
 100                 ls->set(0x66);
 101                 ls->wait(1);
 102                 ls->set(0x0);
 103                 ls->wait(1);
 104         }
 105 }
 106
 107 void led_show4(struct ledshow *ls)
 108 {
 109         unsigned char i;
 110
 111         ls->pattern = 0x01;
 112         ls->set(ls->pattern);
 113         for (i=0; i<ls->led_cnt; i++) {
 114                 ls->set(ls->pattern);
 115                 ls->pattern = ls->pattern << 1;
 116                 ls->wait(1);
 117         }
 118
 119         ls->pattern = (0x01 << (ls->led_cnt-1));
 120         for (i=0; i<ls->led_cnt; i++) {
 121                 ls->set(ls->pattern);
 122                 ls->pattern = ls->pattern >> 1;
 123                 ls->wait(1);
 124         }
 125 }
 126
 127 void led_show5(struct ledshow *ls)
 128 {
 129         unsigned char i;
 130
 131         ls->pattern=0x1;
 132         ls->set(ls->pattern);
 133
 134         for (i=0; i<ls->led_cnt; i++) {
 135                 ls->set(ls->pattern);
 136                 ls->pattern = (ls->pattern << 1) | 0x01;
 137                 ls->wait(2);
 138         }
 139
 140         ls->pattern = 0xff;
 141         for (i=0; i<ls->led_cnt; i++) {
 142                 ls->set(ls->pattern);
 143                 ls->pattern = (ls->pattern << 1);
 144                 ls->wait(1);
 145         }
 146
 147         ls->pattern = 0x00;
 148         ls->set(ls->pattern);
 149
 150         for (i=0; i<ls->led_cnt; i++) {
 151                 ls->set(ls->pattern);
 152                 ls->pattern = (ls->pattern >> 1) | (0x01 << (ls->led_cnt-1));
 153                 ls->wait(2);
 154         }
 155
 156         ls->pattern = 0xff;
 157         for (i=0; i<ls->led_cnt; i++) {
 158                 ls->set(ls->pattern);
 159                 ls->pattern = (ls->pattern >> 1);
 160                 ls->wait(1);
 161         }
 162 }
 163
 164 void led_show6(struct ledshow *ls)
 165 {
 166         ls->set(0x55);
 167         ls->wait(3);
 168         ls->set(0xaa);
 169         ls->wait(3);
 170 }
 171
 172 void led_show7(struct ledshow *ls)
 173 {
 174         ls->set(0x99);
 175         ls->wait(2);
 176         ls->set(0x66);
 177         ls->wait(2);
 178 }
 179
 180 void led_show8(struct ledshow *ls)
 181 {
 182         unsigned char i;
 183
 184         for (i=0; i<6; i++) {
 185                 ls->set(0xcc);
 186                 ls->wait(1);
 187                 ls->set(0x00);
 188                 ls->wait(1);
 189         }
 190
 191         for (i=0; i<6; i++) {
 192                 ls->set(0x33);
 193                 ls->wait(1);
 194                 ls->set(0x00);
 195                 ls->wait(1);
 196         }
 197 }