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1339 | cejka | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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3 | * Copyright (C) 2006 Josef Cejka |
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4 | * All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions |
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8 | * are met: |
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9 | * |
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10 | * - Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * - Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * - The name of the author may not be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
1649 | cejka | 30 | /** @addtogroup kbdia32 ia32 |
1657 | cejka | 31 | * @brief HelenOS ia32 / amd64 arch dependent parts of uspace keyboard handler. |
1649 | cejka | 32 | * @ingroup kbd |
33 | * @{ |
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34 | */ |
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35 | /** @file |
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1657 | cejka | 36 | * @ingroup kbdamd64 |
1649 | cejka | 37 | */ |
38 | |||
1339 | cejka | 39 | #include <arch/kbd.h> |
1353 | jermar | 40 | #include <ipc/ipc.h> |
1339 | cejka | 41 | |
1603 | vana | 42 | #define SPECIAL 255 |
1339 | cejka | 43 | #define KEY_RELEASE 0x80 |
44 | |||
45 | /** |
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46 | * These codes read from i8042 data register are silently ignored. |
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47 | */ |
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48 | #define IGNORE_CODE 0x7f |
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49 | |||
50 | #define PRESSED_SHIFT (1<<0) |
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51 | #define PRESSED_CAPSLOCK (1<<1) |
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52 | #define LOCKED_CAPSLOCK (1<<0) |
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53 | |||
54 | /** Scancodes. */ |
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55 | #define SC_ESC 0x01 |
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56 | #define SC_BACKSPACE 0x0e |
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57 | #define SC_LSHIFT 0x2a |
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58 | #define SC_RSHIFT 0x36 |
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59 | #define SC_CAPSLOCK 0x3a |
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60 | #define SC_SPEC_ESCAPE 0xe0 |
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61 | #define SC_LEFTARR 0x4b |
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62 | #define SC_RIGHTARR 0x4d |
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63 | #define SC_UPARR 0x48 |
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64 | #define SC_DOWNARR 0x50 |
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65 | #define SC_DELETE 0x53 |
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66 | #define SC_HOME 0x47 |
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67 | #define SC_END 0x4f |
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68 | |||
1560 | vana | 69 | #define FUNCTION_KEYS 0x100 |
70 | |||
1339 | cejka | 71 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
72 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
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73 | |||
74 | /** Primary meaning of scancodes. */ |
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1560 | vana | 75 | static int sc_primary_map[] = { |
1339 | cejka | 76 | SPECIAL, /* 0x00 */ |
77 | SPECIAL, /* 0x01 - Esc */ |
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78 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
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79 | '\b', /* 0x0e - Backspace */ |
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80 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
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81 | SPECIAL, /* 0x1d - LCtrl */ |
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82 | 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', |
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83 | '`', |
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84 | SPECIAL, /* 0x2a - LShift */ |
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85 | '\\', |
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86 | 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', |
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87 | SPECIAL, /* 0x36 - RShift */ |
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88 | '*', |
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89 | SPECIAL, /* 0x38 - LAlt */ |
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90 | ' ', |
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91 | SPECIAL, /* 0x3a - CapsLock */ |
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1560 | vana | 92 | (FUNCTION_KEYS | 1), /* 0x3b - F1 */ |
93 | (FUNCTION_KEYS | 2), /* 0x3c - F2 */ |
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94 | (FUNCTION_KEYS | 3), /* 0x3d - F3 */ |
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95 | (FUNCTION_KEYS | 4), /* 0x3e - F4 */ |
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96 | (FUNCTION_KEYS | 5), /* 0x3f - F5 */ |
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97 | (FUNCTION_KEYS | 6), /* 0x40 - F6 */ |
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98 | (FUNCTION_KEYS | 7), /* 0x41 - F7 */ |
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99 | (FUNCTION_KEYS | 8), /* 0x42 - F8 */ |
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100 | (FUNCTION_KEYS | 9), /* 0x43 - F9 */ |
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101 | (FUNCTION_KEYS | 10), /* 0x44 - F10 */ |
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1339 | cejka | 102 | SPECIAL, /* 0x45 - NumLock */ |
103 | SPECIAL, /* 0x46 - ScrollLock */ |
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104 | '7', '8', '9', '-', |
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105 | '4', '5', '6', '+', |
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106 | '1', '2', '3', |
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107 | '0', '.', |
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108 | SPECIAL, /* 0x54 - Alt-SysRq */ |
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109 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
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110 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
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1566 | cejka | 111 | (FUNCTION_KEYS | 11), /* 0x57 - F11 */ |
112 | (FUNCTION_KEYS | 12), /* 0x58 - F12 */ |
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1339 | cejka | 113 | SPECIAL, /* 0x59 */ |
114 | SPECIAL, /* 0x5a */ |
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115 | SPECIAL, /* 0x5b */ |
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116 | SPECIAL, /* 0x5c */ |
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117 | SPECIAL, /* 0x5d */ |
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118 | SPECIAL, /* 0x5e */ |
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119 | SPECIAL, /* 0x5f */ |
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120 | SPECIAL, /* 0x60 */ |
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121 | SPECIAL, /* 0x61 */ |
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122 | SPECIAL, /* 0x62 */ |
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123 | SPECIAL, /* 0x63 */ |
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124 | SPECIAL, /* 0x64 */ |
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125 | SPECIAL, /* 0x65 */ |
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126 | SPECIAL, /* 0x66 */ |
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127 | SPECIAL, /* 0x67 */ |
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128 | SPECIAL, /* 0x68 */ |
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129 | SPECIAL, /* 0x69 */ |
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130 | SPECIAL, /* 0x6a */ |
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131 | SPECIAL, /* 0x6b */ |
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132 | SPECIAL, /* 0x6c */ |
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133 | SPECIAL, /* 0x6d */ |
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134 | SPECIAL, /* 0x6e */ |
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135 | SPECIAL, /* 0x6f */ |
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136 | SPECIAL, /* 0x70 */ |
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137 | SPECIAL, /* 0x71 */ |
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138 | SPECIAL, /* 0x72 */ |
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139 | SPECIAL, /* 0x73 */ |
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140 | SPECIAL, /* 0x74 */ |
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141 | SPECIAL, /* 0x75 */ |
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142 | SPECIAL, /* 0x76 */ |
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143 | SPECIAL, /* 0x77 */ |
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144 | SPECIAL, /* 0x78 */ |
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145 | SPECIAL, /* 0x79 */ |
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146 | SPECIAL, /* 0x7a */ |
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147 | SPECIAL, /* 0x7b */ |
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148 | SPECIAL, /* 0x7c */ |
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149 | SPECIAL, /* 0x7d */ |
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150 | SPECIAL, /* 0x7e */ |
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151 | SPECIAL, /* 0x7f */ |
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152 | }; |
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153 | |||
154 | /** Secondary meaning of scancodes. */ |
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1566 | cejka | 155 | static int sc_secondary_map[] = { |
1339 | cejka | 156 | SPECIAL, /* 0x00 */ |
1644 | vana | 157 | 0x1b, /* 0x01 - Esc */ |
1339 | cejka | 158 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
159 | SPECIAL, /* 0x0e - Backspace */ |
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160 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
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161 | SPECIAL, /* 0x1d - LCtrl */ |
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162 | 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', |
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163 | '~', |
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164 | SPECIAL, /* 0x2a - LShift */ |
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165 | '|', |
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166 | 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', |
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167 | SPECIAL, /* 0x36 - RShift */ |
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168 | '*', |
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169 | SPECIAL, /* 0x38 - LAlt */ |
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170 | ' ', |
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171 | SPECIAL, /* 0x3a - CapsLock */ |
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1504 | cejka | 172 | SPECIAL, /* 0x3b - F1 */ |
173 | SPECIAL, /* 0x3c - F2 */ |
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174 | SPECIAL, /* 0x3d - F3 */ |
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175 | SPECIAL, /* 0x3e - F4 */ |
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176 | SPECIAL, /* 0x3f - F5 */ |
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177 | SPECIAL, /* 0x40 - F6 */ |
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178 | SPECIAL, /* 0x41 - F7 */ |
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179 | SPECIAL, /* 0x42 - F8 */ |
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180 | SPECIAL, /* 0x43 - F9 */ |
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181 | SPECIAL, /* 0x44 - F10 */ |
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1339 | cejka | 182 | SPECIAL, /* 0x45 - NumLock */ |
183 | SPECIAL, /* 0x46 - ScrollLock */ |
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184 | '7', '8', '9', '-', |
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185 | '4', '5', '6', '+', |
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186 | '1', '2', '3', |
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187 | '0', '.', |
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188 | SPECIAL, /* 0x54 - Alt-SysRq */ |
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189 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
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190 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
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191 | SPECIAL, /* 0x57 - F11 */ |
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192 | SPECIAL, /* 0x58 - F12 */ |
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193 | SPECIAL, /* 0x59 */ |
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194 | SPECIAL, /* 0x5a */ |
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195 | SPECIAL, /* 0x5b */ |
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196 | SPECIAL, /* 0x5c */ |
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197 | SPECIAL, /* 0x5d */ |
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198 | SPECIAL, /* 0x5e */ |
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199 | SPECIAL, /* 0x5f */ |
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200 | SPECIAL, /* 0x60 */ |
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201 | SPECIAL, /* 0x61 */ |
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202 | SPECIAL, /* 0x62 */ |
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203 | SPECIAL, /* 0x63 */ |
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204 | SPECIAL, /* 0x64 */ |
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205 | SPECIAL, /* 0x65 */ |
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206 | SPECIAL, /* 0x66 */ |
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207 | SPECIAL, /* 0x67 */ |
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208 | SPECIAL, /* 0x68 */ |
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209 | SPECIAL, /* 0x69 */ |
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210 | SPECIAL, /* 0x6a */ |
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211 | SPECIAL, /* 0x6b */ |
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212 | SPECIAL, /* 0x6c */ |
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213 | SPECIAL, /* 0x6d */ |
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214 | SPECIAL, /* 0x6e */ |
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215 | SPECIAL, /* 0x6f */ |
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216 | SPECIAL, /* 0x70 */ |
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217 | SPECIAL, /* 0x71 */ |
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218 | SPECIAL, /* 0x72 */ |
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219 | SPECIAL, /* 0x73 */ |
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220 | SPECIAL, /* 0x74 */ |
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221 | SPECIAL, /* 0x75 */ |
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222 | SPECIAL, /* 0x76 */ |
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223 | SPECIAL, /* 0x77 */ |
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224 | SPECIAL, /* 0x78 */ |
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225 | SPECIAL, /* 0x79 */ |
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226 | SPECIAL, /* 0x7a */ |
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227 | SPECIAL, /* 0x7b */ |
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228 | SPECIAL, /* 0x7c */ |
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229 | SPECIAL, /* 0x7d */ |
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230 | SPECIAL, /* 0x7e */ |
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231 | SPECIAL, /* 0x7f */ |
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232 | }; |
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233 | |||
234 | irq_cmd_t i8042_cmds[1] = { |
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235 | { CMD_PORT_READ_1, (void *)0x60, 0 } |
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236 | }; |
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237 | |||
238 | irq_code_t i8042_kbd = { |
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239 | 1, |
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240 | i8042_cmds |
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241 | }; |
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242 | |||
1451 | cejka | 243 | static int key_released(keybuffer_t *keybuffer, unsigned char key) |
1339 | cejka | 244 | { |
245 | switch (key) { |
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246 | case SC_LSHIFT: |
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247 | case SC_RSHIFT: |
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248 | keyflags &= ~PRESSED_SHIFT; |
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249 | break; |
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250 | case SC_CAPSLOCK: |
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251 | keyflags &= ~PRESSED_CAPSLOCK; |
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252 | if (lockflags & LOCKED_CAPSLOCK) |
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253 | lockflags &= ~LOCKED_CAPSLOCK; |
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254 | else |
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255 | lockflags |= LOCKED_CAPSLOCK; |
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256 | break; |
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257 | default: |
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258 | break; |
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259 | } |
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260 | } |
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261 | |||
1451 | cejka | 262 | static int key_pressed(keybuffer_t *keybuffer, unsigned char key) |
1339 | cejka | 263 | { |
1560 | vana | 264 | int *map = sc_primary_map; |
265 | int ascii = sc_primary_map[key]; |
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266 | int shift, capslock; |
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267 | int letter = 0; |
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1339 | cejka | 268 | |
1644 | vana | 269 | static int esc_count=0; |
270 | |||
271 | |||
272 | if ( key == SC_ESC ) { |
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273 | esc_count++; |
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274 | if ( esc_count == 3 ) { |
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275 | __SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE); |
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276 | } |
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277 | } else { |
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278 | esc_count=0; |
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279 | } |
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280 | |||
281 | |||
282 | |||
1339 | cejka | 283 | switch (key) { |
284 | case SC_LSHIFT: |
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285 | case SC_RSHIFT: |
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286 | keyflags |= PRESSED_SHIFT; |
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287 | break; |
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288 | case SC_CAPSLOCK: |
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289 | keyflags |= PRESSED_CAPSLOCK; |
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290 | break; |
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291 | case SC_SPEC_ESCAPE: |
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292 | break; |
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1504 | cejka | 293 | /* case SC_LEFTARR: |
1451 | cejka | 294 | if (keybuffer_available(keybuffer) >= 3) { |
295 | keybuffer_push(keybuffer, 0x1b); |
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296 | keybuffer_push(keybuffer, 0x5b); |
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297 | keybuffer_push(keybuffer, 0x44); |
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1339 | cejka | 298 | } |
299 | break; |
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300 | case SC_RIGHTARR: |
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1451 | cejka | 301 | if (keybuffer_available(keybuffer) >= 3) { |
302 | keybuffer_push(keybuffer, 0x1b); |
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303 | keybuffer_push(keybuffer, 0x5b); |
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304 | keybuffer_push(keybuffer, 0x43); |
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1339 | cejka | 305 | } |
306 | break; |
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307 | case SC_UPARR: |
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1451 | cejka | 308 | if (keybuffer_available(keybuffer) >= 3) { |
309 | keybuffer_push(keybuffer, 0x1b); |
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310 | keybuffer_push(keybuffer, 0x5b); |
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311 | keybuffer_push(keybuffer, 0x41); |
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1339 | cejka | 312 | } |
313 | break; |
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314 | case SC_DOWNARR: |
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1451 | cejka | 315 | if (keybuffer_available(keybuffer) >= 3) { |
316 | keybuffer_push(keybuffer, 0x1b); |
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317 | keybuffer_push(keybuffer, 0x5b); |
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318 | keybuffer_push(keybuffer, 0x42); |
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1339 | cejka | 319 | } |
320 | break; |
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321 | case SC_HOME: |
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1451 | cejka | 322 | if (keybuffer_available(keybuffer) >= 3) { |
323 | keybuffer_push(keybuffer, 0x1b); |
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324 | keybuffer_push(keybuffer, 0x4f); |
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325 | keybuffer_push(keybuffer, 0x48); |
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1339 | cejka | 326 | } |
327 | break; |
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328 | case SC_END: |
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1451 | cejka | 329 | if (keybuffer_available(keybuffer) >= 3) { |
330 | keybuffer_push(keybuffer, 0x1b); |
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331 | keybuffer_push(keybuffer, 0x4f); |
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332 | keybuffer_push(keybuffer, 0x46); |
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1339 | cejka | 333 | } |
334 | break; |
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335 | case SC_DELETE: |
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1451 | cejka | 336 | if (keybuffer_available(keybuffer) >= 4) { |
337 | keybuffer_push(keybuffer, 0x1b); |
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338 | keybuffer_push(keybuffer, 0x5b); |
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339 | keybuffer_push(keybuffer, 0x33); |
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340 | keybuffer_push(keybuffer, 0x7e); |
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1339 | cejka | 341 | } |
342 | break; |
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1504 | cejka | 343 | */ default: |
1339 | cejka | 344 | letter = ((ascii >= 'a') && (ascii <= 'z')); |
345 | capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
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346 | shift = keyflags & PRESSED_SHIFT; |
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347 | if (letter && capslock) |
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348 | shift = !shift; |
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349 | if (shift) |
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350 | map = sc_secondary_map; |
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1504 | cejka | 351 | if (map[key] != SPECIAL) |
352 | keybuffer_push(keybuffer, map[key]); |
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1339 | cejka | 353 | break; |
354 | } |
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355 | } |
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356 | |||
357 | /** Register uspace irq handler |
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358 | * @return |
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359 | */ |
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360 | int kbd_arch_init(void) |
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361 | { |
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362 | return !(ipc_register_irq(1, &i8042_kbd)); |
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363 | } |
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364 | |||
1451 | cejka | 365 | int kbd_arch_process(keybuffer_t *keybuffer, int scan_code) |
1339 | cejka | 366 | { |
367 | if (scan_code != IGNORE_CODE) { |
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368 | if (scan_code & KEY_RELEASE) |
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1451 | cejka | 369 | key_released(keybuffer, scan_code ^ KEY_RELEASE); |
1339 | cejka | 370 | else |
1451 | cejka | 371 | key_pressed(keybuffer, scan_code); |
1339 | cejka | 372 | } |
373 | return 1; |
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374 | } |
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1649 | cejka | 375 | |
376 | /** |
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377 | * @} |
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378 | */ |
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379 |