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1 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2006 Jakub Jermar
1 jermar 3
 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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1754 jermar 29
/** @addtogroup genarch
1702 cejka 30
 * @{
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 */
1754 jermar 32
/**
1757 jermar 33
 * @file
1843 jermar 34
 * @brief   Key processing.
1702 cejka 35
 */
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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
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#if (defined(CONFIG_Z8530) || defined(CONFIG_NS16550))
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#include <genarch/kbd/scanc_sun.h>
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#endif
508 jermar 45
#include <synch/spinlock.h>
1843 jermar 46
#include <console/chardev.h>
517 jermar 47
#include <macros.h>
1 jermar 48
 
508 jermar 49
#define PRESSED_SHIFT       (1<<0)
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#define PRESSED_CAPSLOCK    (1<<1)
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#define LOCKED_CAPSLOCK     (1<<0)
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894 jermar 53
#define ACTIVE_READ_BUFF_SIZE 16    /* Must be power of 2 */
878 vana 54
 
1896 jermar 55
chardev_t kbrd;
56
 
1780 jermar 57
static uint8_t active_read_buff[ACTIVE_READ_BUFF_SIZE];
878 vana 58
 
623 jermar 59
SPINLOCK_INITIALIZE(keylock);       /**< keylock protects keyflags and lockflags. */
508 jermar 60
static volatile int keyflags;       /**< Tracking of multiple keypresses. */
509 jermar 61
static volatile int lockflags;      /**< Tracking of multiple keys lockings. */
508 jermar 62
 
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/** Process release of key.
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 *
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 * @param sc Scancode of the key being released.
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 */
1780 jermar 67
void key_released(uint8_t sc)
508 jermar 68
{
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    spinlock_lock(&keylock);
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    switch (sc) {
1875 jermar 71
    case SC_LSHIFT:
72
    case SC_RSHIFT:
508 jermar 73
        keyflags &= ~PRESSED_SHIFT;
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        break;
1875 jermar 75
    case SC_CAPSLOCK:
508 jermar 76
        keyflags &= ~PRESSED_CAPSLOCK;
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        if (lockflags & LOCKED_CAPSLOCK)
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            lockflags &= ~LOCKED_CAPSLOCK;
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        else
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            lockflags |= LOCKED_CAPSLOCK;
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        break;
1875 jermar 82
    default:
508 jermar 83
        break;
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    }
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    spinlock_unlock(&keylock);
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}
87
 
88
/** Process keypress.
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 *
90
 * @param sc Scancode of the key being pressed.
91
 */
1780 jermar 92
void key_pressed(uint8_t sc)
508 jermar 93
{
94
    char *map = sc_primary_map;
95
    char ascii = sc_primary_map[sc];
96
    bool shift, capslock;
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    bool letter = false;
98
 
99
    spinlock_lock(&keylock);
100
    switch (sc) {
601 palkovsky 101
    case SC_LSHIFT:
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    case SC_RSHIFT:
508 jermar 103
            keyflags |= PRESSED_SHIFT;
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        break;
601 palkovsky 105
    case SC_CAPSLOCK:
508 jermar 106
        keyflags |= PRESSED_CAPSLOCK;
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        break;
601 palkovsky 108
    case SC_SPEC_ESCAPE:
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        break;
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    case SC_LEFTARR:
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        chardev_push_character(&kbrd, 0x1b);
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        chardev_push_character(&kbrd, 0x5b);
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        chardev_push_character(&kbrd, 0x44);
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        break;
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    case SC_RIGHTARR:
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        chardev_push_character(&kbrd, 0x1b);
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        chardev_push_character(&kbrd, 0x5b);
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        chardev_push_character(&kbrd, 0x43);
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        break;
120
    case SC_UPARR:
121
        chardev_push_character(&kbrd, 0x1b);
122
        chardev_push_character(&kbrd, 0x5b);
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        chardev_push_character(&kbrd, 0x41);
124
        break;
125
    case SC_DOWNARR:
126
        chardev_push_character(&kbrd, 0x1b);
127
        chardev_push_character(&kbrd, 0x5b);
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        chardev_push_character(&kbrd, 0x42);
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        break;
606 palkovsky 130
    case SC_HOME:
131
        chardev_push_character(&kbrd, 0x1b);
132
        chardev_push_character(&kbrd, 0x4f);
133
        chardev_push_character(&kbrd, 0x48);
134
        break;
135
    case SC_END:
136
        chardev_push_character(&kbrd, 0x1b);
137
        chardev_push_character(&kbrd, 0x4f);
138
        chardev_push_character(&kbrd, 0x46);
139
        break;
140
    case SC_DELETE:
141
        chardev_push_character(&kbrd, 0x1b);
142
        chardev_push_character(&kbrd, 0x5b);
143
        chardev_push_character(&kbrd, 0x33);
144
        chardev_push_character(&kbrd, 0x7e);
145
        break;
601 palkovsky 146
    default:
517 jermar 147
            letter = is_lower(ascii);
508 jermar 148
        capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
149
        shift = keyflags & PRESSED_SHIFT;
150
        if (letter && capslock)
151
            shift = !shift;
152
        if (shift)
153
            map = sc_secondary_map;
511 jermar 154
        chardev_push_character(&kbrd, map[sc]);
508 jermar 155
        break;
156
    }
157
    spinlock_unlock(&keylock);
158
}
511 jermar 159
 
1843 jermar 160
uint8_t active_read_buff_read(void)
511 jermar 161
{
878 vana 162
    static int i=0;
894 jermar 163
    i &= (ACTIVE_READ_BUFF_SIZE-1);
164
    if(!active_read_buff[i]) {
878 vana 165
        return 0;
166
    }
167
    return active_read_buff[i++];
168
}
169
 
1843 jermar 170
void active_read_buff_write(uint8_t ch)
878 vana 171
{
172
    static int i=0;
894 jermar 173
    active_read_buff[i] = ch;
878 vana 174
    i++;
894 jermar 175
    i &= (ACTIVE_READ_BUFF_SIZE-1);
878 vana 176
    active_read_buff[i]=0;
177
}
178
 
179
 
1843 jermar 180
void active_read_key_pressed(uint8_t sc)
878 vana 181
{
182
    char *map = sc_primary_map;
183
    char ascii = sc_primary_map[sc];
184
    bool shift, capslock;
185
    bool letter = false;
186
 
187
    /*spinlock_lock(&keylock);*/
188
    switch (sc) {
189
    case SC_LSHIFT:
190
    case SC_RSHIFT:
191
            keyflags |= PRESSED_SHIFT;
192
        break;
193
    case SC_CAPSLOCK:
194
        keyflags |= PRESSED_CAPSLOCK;
195
        break;
196
    case SC_SPEC_ESCAPE:
197
        break;
198
    case SC_LEFTARR:
199
        active_read_buff_write(0x1b);
200
        active_read_buff_write(0x5b);
201
        active_read_buff_write(0x44);
202
        break;
203
    case SC_RIGHTARR:
204
        active_read_buff_write(0x1b);
205
        active_read_buff_write(0x5b);
206
        active_read_buff_write(0x43);
207
        break;
208
    case SC_UPARR:
209
        active_read_buff_write(0x1b);
210
        active_read_buff_write(0x5b);
211
        active_read_buff_write(0x41);
212
        break;
213
    case SC_DOWNARR:
214
        active_read_buff_write(0x1b);
215
        active_read_buff_write(0x5b);
216
        active_read_buff_write(0x42);
217
        break;
218
    case SC_HOME:
219
        active_read_buff_write(0x1b);
220
        active_read_buff_write(0x4f);
221
        active_read_buff_write(0x48);
222
        break;
223
    case SC_END:
224
        active_read_buff_write(0x1b);
225
        active_read_buff_write(0x4f);
226
        active_read_buff_write(0x46);
227
        break;
228
    case SC_DELETE:
229
        active_read_buff_write(0x1b);
230
        active_read_buff_write(0x5b);
231
        active_read_buff_write(0x33);
232
        active_read_buff_write(0x7e);
233
        break;
234
    default:
235
            letter = is_lower(ascii);
236
        capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
237
        shift = keyflags & PRESSED_SHIFT;
238
        if (letter && capslock)
239
            shift = !shift;
240
        if (shift)
241
            map = sc_secondary_map;
242
        active_read_buff_write(map[sc]);
243
        break;
244
    }
245
    /*spinlock_unlock(&keylock);*/
246
 
247
}
248
 
1754 jermar 249
/** @}
1702 cejka 250
 */