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1 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2006 Jakub Jermar |
1 | jermar | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1754 | jermar | 29 | /** @addtogroup genarch |
1702 | cejka | 30 | * @{ |
31 | */ |
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1754 | jermar | 32 | /** |
1757 | jermar | 33 | * @file |
1843 | jermar | 34 | * @brief Key processing. |
1702 | cejka | 35 | */ |
36 | |||
1843 | jermar | 37 | #include <genarch/kbd/key.h> |
1842 | jermar | 38 | #include <genarch/kbd/scanc.h> |
1844 | jermar | 39 | #ifdef CONFIG_I8042 |
1842 | jermar | 40 | #include <genarch/kbd/scanc_pc.h> |
1844 | jermar | 41 | #endif |
3593 | rimsky | 42 | |
43 | #if (defined(sparc64)) |
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1844 | jermar | 44 | #include <genarch/kbd/scanc_sun.h> |
45 | #endif |
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3593 | rimsky | 46 | |
508 | jermar | 47 | #include <synch/spinlock.h> |
1843 | jermar | 48 | #include <console/chardev.h> |
517 | jermar | 49 | #include <macros.h> |
1 | jermar | 50 | |
508 | jermar | 51 | #define PRESSED_SHIFT (1<<0) |
52 | #define PRESSED_CAPSLOCK (1<<1) |
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53 | #define LOCKED_CAPSLOCK (1<<0) |
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54 | |||
894 | jermar | 55 | #define ACTIVE_READ_BUFF_SIZE 16 /* Must be power of 2 */ |
878 | vana | 56 | |
1896 | jermar | 57 | chardev_t kbrd; |
58 | |||
1780 | jermar | 59 | static uint8_t active_read_buff[ACTIVE_READ_BUFF_SIZE]; |
878 | vana | 60 | |
623 | jermar | 61 | SPINLOCK_INITIALIZE(keylock); /**< keylock protects keyflags and lockflags. */ |
508 | jermar | 62 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
509 | jermar | 63 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
508 | jermar | 64 | |
65 | /** Process release of key. |
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66 | * |
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67 | * @param sc Scancode of the key being released. |
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68 | */ |
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1780 | jermar | 69 | void key_released(uint8_t sc) |
508 | jermar | 70 | { |
71 | spinlock_lock(&keylock); |
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72 | switch (sc) { |
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1875 | jermar | 73 | case SC_LSHIFT: |
74 | case SC_RSHIFT: |
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508 | jermar | 75 | keyflags &= ~PRESSED_SHIFT; |
76 | break; |
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1875 | jermar | 77 | case SC_CAPSLOCK: |
508 | jermar | 78 | keyflags &= ~PRESSED_CAPSLOCK; |
79 | if (lockflags & LOCKED_CAPSLOCK) |
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80 | lockflags &= ~LOCKED_CAPSLOCK; |
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81 | else |
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82 | lockflags |= LOCKED_CAPSLOCK; |
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83 | break; |
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1875 | jermar | 84 | default: |
508 | jermar | 85 | break; |
86 | } |
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87 | spinlock_unlock(&keylock); |
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88 | } |
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89 | |||
90 | /** Process keypress. |
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91 | * |
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92 | * @param sc Scancode of the key being pressed. |
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93 | */ |
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1780 | jermar | 94 | void key_pressed(uint8_t sc) |
508 | jermar | 95 | { |
96 | char *map = sc_primary_map; |
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97 | char ascii = sc_primary_map[sc]; |
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98 | bool shift, capslock; |
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99 | bool letter = false; |
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100 | |||
101 | spinlock_lock(&keylock); |
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102 | switch (sc) { |
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601 | palkovsky | 103 | case SC_LSHIFT: |
104 | case SC_RSHIFT: |
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508 | jermar | 105 | keyflags |= PRESSED_SHIFT; |
106 | break; |
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601 | palkovsky | 107 | case SC_CAPSLOCK: |
508 | jermar | 108 | keyflags |= PRESSED_CAPSLOCK; |
109 | break; |
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601 | palkovsky | 110 | case SC_SPEC_ESCAPE: |
111 | break; |
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112 | case SC_LEFTARR: |
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113 | chardev_push_character(&kbrd, 0x1b); |
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114 | chardev_push_character(&kbrd, 0x5b); |
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115 | chardev_push_character(&kbrd, 0x44); |
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116 | break; |
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117 | case SC_RIGHTARR: |
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118 | chardev_push_character(&kbrd, 0x1b); |
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119 | chardev_push_character(&kbrd, 0x5b); |
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120 | chardev_push_character(&kbrd, 0x43); |
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121 | break; |
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122 | case SC_UPARR: |
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123 | chardev_push_character(&kbrd, 0x1b); |
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124 | chardev_push_character(&kbrd, 0x5b); |
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125 | chardev_push_character(&kbrd, 0x41); |
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126 | break; |
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127 | case SC_DOWNARR: |
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128 | chardev_push_character(&kbrd, 0x1b); |
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129 | chardev_push_character(&kbrd, 0x5b); |
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130 | chardev_push_character(&kbrd, 0x42); |
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131 | break; |
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606 | palkovsky | 132 | case SC_HOME: |
133 | chardev_push_character(&kbrd, 0x1b); |
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134 | chardev_push_character(&kbrd, 0x4f); |
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135 | chardev_push_character(&kbrd, 0x48); |
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136 | break; |
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137 | case SC_END: |
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138 | chardev_push_character(&kbrd, 0x1b); |
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139 | chardev_push_character(&kbrd, 0x4f); |
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140 | chardev_push_character(&kbrd, 0x46); |
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141 | break; |
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142 | case SC_DELETE: |
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143 | chardev_push_character(&kbrd, 0x1b); |
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144 | chardev_push_character(&kbrd, 0x5b); |
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145 | chardev_push_character(&kbrd, 0x33); |
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146 | chardev_push_character(&kbrd, 0x7e); |
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147 | break; |
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601 | palkovsky | 148 | default: |
2572 | jermar | 149 | letter = islower(ascii); |
150 | capslock = (keyflags & PRESSED_CAPSLOCK) || |
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151 | (lockflags & LOCKED_CAPSLOCK); |
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508 | jermar | 152 | shift = keyflags & PRESSED_SHIFT; |
153 | if (letter && capslock) |
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154 | shift = !shift; |
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155 | if (shift) |
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156 | map = sc_secondary_map; |
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511 | jermar | 157 | chardev_push_character(&kbrd, map[sc]); |
508 | jermar | 158 | break; |
159 | } |
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160 | spinlock_unlock(&keylock); |
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161 | } |
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511 | jermar | 162 | |
1843 | jermar | 163 | uint8_t active_read_buff_read(void) |
511 | jermar | 164 | { |
878 | vana | 165 | static int i=0; |
894 | jermar | 166 | i &= (ACTIVE_READ_BUFF_SIZE-1); |
167 | if(!active_read_buff[i]) { |
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878 | vana | 168 | return 0; |
169 | } |
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170 | return active_read_buff[i++]; |
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171 | } |
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172 | |||
1843 | jermar | 173 | void active_read_buff_write(uint8_t ch) |
878 | vana | 174 | { |
175 | static int i=0; |
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894 | jermar | 176 | active_read_buff[i] = ch; |
878 | vana | 177 | i++; |
894 | jermar | 178 | i &= (ACTIVE_READ_BUFF_SIZE-1); |
878 | vana | 179 | active_read_buff[i]=0; |
180 | } |
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181 | |||
182 | |||
1843 | jermar | 183 | void active_read_key_pressed(uint8_t sc) |
878 | vana | 184 | { |
185 | char *map = sc_primary_map; |
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186 | char ascii = sc_primary_map[sc]; |
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187 | bool shift, capslock; |
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188 | bool letter = false; |
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189 | |||
190 | /*spinlock_lock(&keylock);*/ |
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191 | switch (sc) { |
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192 | case SC_LSHIFT: |
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193 | case SC_RSHIFT: |
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194 | keyflags |= PRESSED_SHIFT; |
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195 | break; |
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196 | case SC_CAPSLOCK: |
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197 | keyflags |= PRESSED_CAPSLOCK; |
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198 | break; |
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199 | case SC_SPEC_ESCAPE: |
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200 | break; |
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201 | case SC_LEFTARR: |
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202 | active_read_buff_write(0x1b); |
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203 | active_read_buff_write(0x5b); |
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204 | active_read_buff_write(0x44); |
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205 | break; |
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206 | case SC_RIGHTARR: |
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207 | active_read_buff_write(0x1b); |
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208 | active_read_buff_write(0x5b); |
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209 | active_read_buff_write(0x43); |
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210 | break; |
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211 | case SC_UPARR: |
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212 | active_read_buff_write(0x1b); |
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213 | active_read_buff_write(0x5b); |
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214 | active_read_buff_write(0x41); |
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215 | break; |
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216 | case SC_DOWNARR: |
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217 | active_read_buff_write(0x1b); |
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218 | active_read_buff_write(0x5b); |
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219 | active_read_buff_write(0x42); |
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220 | break; |
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221 | case SC_HOME: |
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222 | active_read_buff_write(0x1b); |
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223 | active_read_buff_write(0x4f); |
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224 | active_read_buff_write(0x48); |
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225 | break; |
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226 | case SC_END: |
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227 | active_read_buff_write(0x1b); |
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228 | active_read_buff_write(0x4f); |
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229 | active_read_buff_write(0x46); |
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230 | break; |
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231 | case SC_DELETE: |
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232 | active_read_buff_write(0x1b); |
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233 | active_read_buff_write(0x5b); |
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234 | active_read_buff_write(0x33); |
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235 | active_read_buff_write(0x7e); |
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236 | break; |
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237 | default: |
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2572 | jermar | 238 | letter = islower(ascii); |
239 | capslock = (keyflags & PRESSED_CAPSLOCK) || |
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240 | (lockflags & LOCKED_CAPSLOCK); |
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878 | vana | 241 | shift = keyflags & PRESSED_SHIFT; |
242 | if (letter && capslock) |
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243 | shift = !shift; |
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244 | if (shift) |
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245 | map = sc_secondary_map; |
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246 | active_read_buff_write(map[sc]); |
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247 | break; |
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248 | } |
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249 | /*spinlock_unlock(&keylock);*/ |
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250 | |||
251 | } |
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252 | |||
1754 | jermar | 253 | /** @} |
1702 | cejka | 254 | */ |