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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>
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#include <genarch/kbd/scanc.h>
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#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;
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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:
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    case SC_RSHIFT:
508 jermar 73
        keyflags &= ~PRESSED_SHIFT;
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        break;
1875 jermar 75
    case SC_CAPSLOCK:
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        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;
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    default:
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        break;
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    }
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    spinlock_unlock(&keylock);
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}
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/** Process keypress.
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 *
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 * @param sc Scancode of the key being pressed.
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 */
1780 jermar 92
void key_pressed(uint8_t sc)
508 jermar 93
{
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    char *map = sc_primary_map;
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    char ascii = sc_primary_map[sc];
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    bool shift, capslock;
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    bool letter = false;
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    spinlock_lock(&keylock);
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    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;
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    case SC_UPARR:
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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, 0x41);
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        break;
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    case SC_DOWNARR:
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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, 0x42);
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        break;
606 palkovsky 130
    case SC_HOME:
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        chardev_push_character(&kbrd, 0x1b);
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        chardev_push_character(&kbrd, 0x4f);
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        chardev_push_character(&kbrd, 0x48);
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        break;
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    case SC_END:
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        chardev_push_character(&kbrd, 0x1b);
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        chardev_push_character(&kbrd, 0x4f);
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        chardev_push_character(&kbrd, 0x46);
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        break;
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    case SC_DELETE:
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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, 0x33);
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        chardev_push_character(&kbrd, 0x7e);
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        break;
601 palkovsky 146
    default:
2572 jermar 147
            letter = islower(ascii);
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        capslock = (keyflags & PRESSED_CAPSLOCK) ||
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            (lockflags & LOCKED_CAPSLOCK);
508 jermar 150
        shift = keyflags & PRESSED_SHIFT;
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        if (letter && capslock)
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            shift = !shift;
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        if (shift)
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            map = sc_secondary_map;
511 jermar 155
        chardev_push_character(&kbrd, map[sc]);
508 jermar 156
        break;
157
    }
158
    spinlock_unlock(&keylock);
159
}
511 jermar 160
 
1843 jermar 161
uint8_t active_read_buff_read(void)
511 jermar 162
{
878 vana 163
    static int i=0;
894 jermar 164
    i &= (ACTIVE_READ_BUFF_SIZE-1);
165
    if(!active_read_buff[i]) {
878 vana 166
        return 0;
167
    }
168
    return active_read_buff[i++];
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}
170
 
1843 jermar 171
void active_read_buff_write(uint8_t ch)
878 vana 172
{
173
    static int i=0;
894 jermar 174
    active_read_buff[i] = ch;
878 vana 175
    i++;
894 jermar 176
    i &= (ACTIVE_READ_BUFF_SIZE-1);
878 vana 177
    active_read_buff[i]=0;
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}
179
 
180
 
1843 jermar 181
void active_read_key_pressed(uint8_t sc)
878 vana 182
{
183
    char *map = sc_primary_map;
184
    char ascii = sc_primary_map[sc];
185
    bool shift, capslock;
186
    bool letter = false;
187
 
188
    /*spinlock_lock(&keylock);*/
189
    switch (sc) {
190
    case SC_LSHIFT:
191
    case SC_RSHIFT:
192
            keyflags |= PRESSED_SHIFT;
193
        break;
194
    case SC_CAPSLOCK:
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        keyflags |= PRESSED_CAPSLOCK;
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        break;
197
    case SC_SPEC_ESCAPE:
198
        break;
199
    case SC_LEFTARR:
200
        active_read_buff_write(0x1b);
201
        active_read_buff_write(0x5b);
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        active_read_buff_write(0x44);
203
        break;
204
    case SC_RIGHTARR:
205
        active_read_buff_write(0x1b);
206
        active_read_buff_write(0x5b);
207
        active_read_buff_write(0x43);
208
        break;
209
    case SC_UPARR:
210
        active_read_buff_write(0x1b);
211
        active_read_buff_write(0x5b);
212
        active_read_buff_write(0x41);
213
        break;
214
    case SC_DOWNARR:
215
        active_read_buff_write(0x1b);
216
        active_read_buff_write(0x5b);
217
        active_read_buff_write(0x42);
218
        break;
219
    case SC_HOME:
220
        active_read_buff_write(0x1b);
221
        active_read_buff_write(0x4f);
222
        active_read_buff_write(0x48);
223
        break;
224
    case SC_END:
225
        active_read_buff_write(0x1b);
226
        active_read_buff_write(0x4f);
227
        active_read_buff_write(0x46);
228
        break;
229
    case SC_DELETE:
230
        active_read_buff_write(0x1b);
231
        active_read_buff_write(0x5b);
232
        active_read_buff_write(0x33);
233
        active_read_buff_write(0x7e);
234
        break;
235
    default:
2572 jermar 236
            letter = islower(ascii);
237
        capslock = (keyflags & PRESSED_CAPSLOCK) ||
238
            (lockflags & LOCKED_CAPSLOCK);
878 vana 239
        shift = keyflags & PRESSED_SHIFT;
240
        if (letter && capslock)
241
            shift = !shift;
242
        if (shift)
243
            map = sc_secondary_map;
244
        active_read_buff_write(map[sc]);
245
        break;
246
    }
247
    /*spinlock_unlock(&keylock);*/
248
 
249
}
250
 
1754 jermar 251
/** @}
1702 cejka 252
 */