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Line 35... Line 35...
35 
 *
 35 
 *
36 
 * It takes care of low-level keyboard functions.
 36 
 * It takes care of low-level keyboard functions.
37 
 */
 37 
 */
38 
 
 38 
 
39 
#include <genarch/kbd/i8042.h>
 39 
#include <genarch/kbd/i8042.h>
- 
 
 40 
#include <genarch/kbd/key.h>
40 
#include <genarch/kbd/scanc.h>
 41 
#include <genarch/kbd/scanc.h>
41 
#include <genarch/kbd/scanc_pc.h>
 42 
#include <genarch/kbd/scanc_pc.h>
42 
#include <arch/drivers/i8042.h>
 43 
#include <arch/drivers/i8042.h>
43 
#include <arch/interrupt.h>
 44 
#include <arch/interrupt.h>
44 
#include <cpu.h>
 45 
#include <cpu.h>
45 
#include <arch/asm.h>
 46 
#include <arch/asm.h>
46 
#include <arch.h>
 47 
#include <arch.h>
47 
#include <synch/spinlock.h>
 - 
 
48 
#include <typedefs.h>
 48 
#include <typedefs.h>
49 
#include <console/chardev.h>
 49 
#include <console/chardev.h>
50 
#include <console/console.h>
 50 
#include <console/console.h>
51 
#include <macros.h>
 - 
 
52 
#include <interrupt.h>
 51 
#include <interrupt.h>
53 
 
 52 
 
54 
/* Keyboard commands. */
 53 
/* Keyboard commands. */
55 
#define KBD_ENABLE  0xf4
 54 
#define KBD_ENABLE  0xf4
56 
#define KBD_DISABLE 0xf5
 55 
#define KBD_DISABLE 0xf5
Line 76... Line 75...
76 
 
 75 
 
77 
#define i8042_BUFFER_FULL_MASK  0x01
 76 
#define i8042_BUFFER_FULL_MASK  0x01
78 
#define i8042_WAIT_MASK     0x02
 77 
#define i8042_WAIT_MASK     0x02
79 
#define i8042_MOUSE_DATA        0x20
 78 
#define i8042_MOUSE_DATA        0x20
80 
 
 79 
 
81 
#define KEY_RELEASE 0x80
 - 
 
82 
 
 - 
 
83 
static void key_released(uint8_t sc);
 - 
 
84 
static void key_pressed(uint8_t sc);
 - 
 
85 
static char key_read(chardev_t *d);
 - 
 
86 
 
 - 
 
87 
#define PRESSED_SHIFT       (1<<0)
 - 
 
88 
#define PRESSED_CAPSLOCK    (1<<1)
 - 
 
89 
#define LOCKED_CAPSLOCK     (1<<0)
 - 
 
90 
 
 - 
 
91 
#define ACTIVE_READ_BUFF_SIZE 16    /* Must be power of 2 */
 - 
 
92 
 
 - 
 
93 
static uint8_t active_read_buff[ACTIVE_READ_BUFF_SIZE];
 - 
 
94 
 
 - 
 
95 
SPINLOCK_INITIALIZE(keylock);       /**< keylock protects keyflags and lockflags. */
 - 
 
96 
static volatile int keyflags;       /**< Tracking of multiple keypresses. */
 - 
 
97 
static volatile int lockflags;      /**< Tracking of multiple keys lockings. */
 - 
 
98 
 
 - 
 
99 
static void i8042_suspend(chardev_t *);
 80 
static void i8042_suspend(chardev_t *);
100 
static void i8042_resume(chardev_t *);
 81 
static void i8042_resume(chardev_t *);
101 
 
 82 
 
102 
static chardev_t kbrd;
 83 
chardev_t kbrd;
103 
static chardev_operations_t ops = {
 84 
static chardev_operations_t ops = {
104 
    .suspend = i8042_suspend,
 85 
    .suspend = i8042_suspend,
105 
    .resume = i8042_resume,
 86 
    .resume = i8042_resume,
106 
    .read = key_read
 87 
    .read = key_read
107 
};
 88 
};
Line 180... Line 161...
180 
    while (i8042_status_read() & i8042_WAIT_MASK) {
 161 
    while (i8042_status_read() & i8042_WAIT_MASK) {
181 
        /* wait */
 162 
        /* wait */
182 
    }
 163 
    }
183 
}
 164 
}
184 
 
 165 
 
185 
/** Process release of key.
 - 
 
186 
 *
 - 
 
187 
 * @param sc Scancode of the key being released.
 - 
 
188 
 */
 - 
 
189 
void key_released(uint8_t sc)
 - 
 
190 
{
 - 
 
191 
    spinlock_lock(&keylock);
 - 
 
192 
    switch (sc) {
 - 
 
193 
        case SC_LSHIFT:
 - 
 
194 
        case SC_RSHIFT:
 - 
 
195 
        keyflags &= ~PRESSED_SHIFT;
 - 
 
196 
        break;
 - 
 
197 
        case SC_CAPSLOCK:
 - 
 
198 
        keyflags &= ~PRESSED_CAPSLOCK;
 - 
 
199 
        if (lockflags & LOCKED_CAPSLOCK)
 - 
 
200 
            lockflags &= ~LOCKED_CAPSLOCK;
 - 
 
201 
        else
 - 
 
202 
            lockflags |= LOCKED_CAPSLOCK;
 - 
 
203 
        break;
 - 
 
204 
        default:
 - 
 
205 
        break;
 - 
 
206 
    }
 - 
 
207 
    spinlock_unlock(&keylock);
 - 
 
208 
}
 - 
 
209 
 
 - 
 
210 
/** Process keypress.
 - 
 
211 
 *
 - 
 
212 
 * @param sc Scancode of the key being pressed.
 - 
 
213 
 */
 - 
 
214 
void key_pressed(uint8_t sc)
 - 
 
215 
{
 - 
 
216 
    char *map = sc_primary_map;
 - 
 
217 
    char ascii = sc_primary_map[sc];
 - 
 
218 
    bool shift, capslock;
 - 
 
219 
    bool letter = false;
 - 
 
220 
 
 - 
 
221 
    spinlock_lock(&keylock);
 - 
 
222 
    switch (sc) {
 - 
 
223 
    case SC_LSHIFT:
 - 
 
224 
    case SC_RSHIFT:
 - 
 
225 
            keyflags |= PRESSED_SHIFT;
 - 
 
226 
        break;
 - 
 
227 
    case SC_CAPSLOCK:
 - 
 
228 
        keyflags |= PRESSED_CAPSLOCK;
 - 
 
229 
        break;
 - 
 
230 
    case SC_SPEC_ESCAPE:
 - 
 
231 
        break;
 - 
 
232 
    case SC_LEFTARR:
 - 
 
233 
        chardev_push_character(&kbrd, 0x1b);
 - 
 
234 
        chardev_push_character(&kbrd, 0x5b);
 - 
 
235 
        chardev_push_character(&kbrd, 0x44);
 - 
 
236 
        break;
 - 
 
237 
    case SC_RIGHTARR:
 - 
 
238 
        chardev_push_character(&kbrd, 0x1b);
 - 
 
239 
        chardev_push_character(&kbrd, 0x5b);
 - 
 
240 
        chardev_push_character(&kbrd, 0x43);
 - 
 
241 
        break;
 - 
 
242 
    case SC_UPARR:
 - 
 
243 
        chardev_push_character(&kbrd, 0x1b);
 - 
 
244 
        chardev_push_character(&kbrd, 0x5b);
 - 
 
245 
        chardev_push_character(&kbrd, 0x41);
 - 
 
246 
        break;
 - 
 
247 
    case SC_DOWNARR:
 - 
 
248 
        chardev_push_character(&kbrd, 0x1b);
 - 
 
249 
        chardev_push_character(&kbrd, 0x5b);
 - 
 
250 
        chardev_push_character(&kbrd, 0x42);
 - 
 
251 
        break;
 - 
 
252 
    case SC_HOME:
 - 
 
253 
        chardev_push_character(&kbrd, 0x1b);
 - 
 
254 
        chardev_push_character(&kbrd, 0x4f);
 - 
 
255 
        chardev_push_character(&kbrd, 0x48);
 - 
 
256 
        break;
 - 
 
257 
    case SC_END:
 - 
 
258 
        chardev_push_character(&kbrd, 0x1b);
 - 
 
259 
        chardev_push_character(&kbrd, 0x4f);
 - 
 
260 
        chardev_push_character(&kbrd, 0x46);
 - 
 
261 
        break;
 - 
 
262 
    case SC_DELETE:
 - 
 
263 
        chardev_push_character(&kbrd, 0x1b);
 - 
 
264 
        chardev_push_character(&kbrd, 0x5b);
 - 
 
265 
        chardev_push_character(&kbrd, 0x33);
 - 
 
266 
        chardev_push_character(&kbrd, 0x7e);
 - 
 
267 
        break;
 - 
 
268 
    default:
 - 
 
269 
            letter = is_lower(ascii);
 - 
 
270 
        capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
 - 
 
271 
        shift = keyflags & PRESSED_SHIFT;
 - 
 
272 
        if (letter && capslock)
 - 
 
273 
            shift = !shift;
 - 
 
274 
        if (shift)
 - 
 
275 
            map = sc_secondary_map;
 - 
 
276 
        chardev_push_character(&kbrd, map[sc]);
 - 
 
277 
        break;
 - 
 
278 
    }
 - 
 
279 
    spinlock_unlock(&keylock);
 - 
 
280 
}
 - 
 
281 
 
 - 
 
282 
/* Called from getc(). */
 166 
/* Called from getc(). */
283 
void i8042_resume(chardev_t *d)
 167 
void i8042_resume(chardev_t *d)
284 
{
 168 
{
285 
}
 169 
}
286 
 
 170 
 
287 
/* Called from getc(). */
 171 
/* Called from getc(). */
288 
void i8042_suspend(chardev_t *d)
 172 
void i8042_suspend(chardev_t *d)
289 
{
 173 
{
290 
}
 174 
}
291 
 
 175 
 
292 
static uint8_t active_read_buff_read(void)
 - 
 
293 
{
 - 
 
294 
    static int i=0;
 - 
 
295 
    i &= (ACTIVE_READ_BUFF_SIZE-1);
 - 
 
296 
    if(!active_read_buff[i]) {
 - 
 
297 
        return 0;
 - 
 
298 
    }
 - 
 
299 
    return active_read_buff[i++];
 - 
 
300 
}
 - 
 
301 
 
 - 
 
302 
static void active_read_buff_write(uint8_t ch)
 - 
 
303 
{
 - 
 
304 
    static int i=0;
 - 
 
305 
    active_read_buff[i] = ch;
 - 
 
306 
    i++;
 - 
 
307 
    i &= (ACTIVE_READ_BUFF_SIZE-1);
 - 
 
308 
    active_read_buff[i]=0;
 - 
 
309 
}
 - 
 
310 
 
 - 
 
311 
 
 - 
 
312 
static void active_read_key_pressed(uint8_t sc)
 - 
 
313 
{
 - 
 
314 
    char *map = sc_primary_map;
 - 
 
315 
    char ascii = sc_primary_map[sc];
 - 
 
316 
    bool shift, capslock;
 - 
 
317 
    bool letter = false;
 - 
 
318 
 
 - 
 
319 
    /*spinlock_lock(&keylock);*/
 - 
 
320 
    switch (sc) {
 - 
 
321 
    case SC_LSHIFT:
 - 
 
322 
    case SC_RSHIFT:
 - 
 
323 
            keyflags |= PRESSED_SHIFT;
 - 
 
324 
        break;
 - 
 
325 
    case SC_CAPSLOCK:
 - 
 
326 
        keyflags |= PRESSED_CAPSLOCK;
 - 
 
327 
        break;
 - 
 
328 
    case SC_SPEC_ESCAPE:
 - 
 
329 
        break;
 - 
 
330 
    case SC_LEFTARR:
 - 
 
331 
        active_read_buff_write(0x1b);
 - 
 
332 
        active_read_buff_write(0x5b);
 - 
 
333 
        active_read_buff_write(0x44);
 - 
 
334 
        break;
 - 
 
335 
    case SC_RIGHTARR:
 - 
 
336 
        active_read_buff_write(0x1b);
 - 
 
337 
        active_read_buff_write(0x5b);
 - 
 
338 
        active_read_buff_write(0x43);
 - 
 
339 
        break;
 - 
 
340 
    case SC_UPARR:
 - 
 
341 
        active_read_buff_write(0x1b);
 - 
 
342 
        active_read_buff_write(0x5b);
 - 
 
343 
        active_read_buff_write(0x41);
 - 
 
344 
        break;
 - 
 
345 
    case SC_DOWNARR:
 - 
 
346 
        active_read_buff_write(0x1b);
 - 
 
347 
        active_read_buff_write(0x5b);
 - 
 
348 
        active_read_buff_write(0x42);
 - 
 
349 
        break;
 - 
 
350 
    case SC_HOME:
 - 
 
351 
        active_read_buff_write(0x1b);
 - 
 
352 
        active_read_buff_write(0x4f);
 - 
 
353 
        active_read_buff_write(0x48);
 - 
 
354 
        break;
 - 
 
355 
    case SC_END:
 - 
 
356 
        active_read_buff_write(0x1b);
 - 
 
357 
        active_read_buff_write(0x4f);
 - 
 
358 
        active_read_buff_write(0x46);
 - 
 
359 
        break;
 - 
 
360 
    case SC_DELETE:
 - 
 
361 
        active_read_buff_write(0x1b);
 - 
 
362 
        active_read_buff_write(0x5b);
 - 
 
363 
        active_read_buff_write(0x33);
 - 
 
364 
        active_read_buff_write(0x7e);
 - 
 
365 
        break;
 - 
 
366 
    default:
 - 
 
367 
            letter = is_lower(ascii);
 - 
 
368 
        capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
 - 
 
369 
        shift = keyflags & PRESSED_SHIFT;
 - 
 
370 
        if (letter && capslock)
 - 
 
371 
            shift = !shift;
 - 
 
372 
        if (shift)
 - 
 
373 
            map = sc_secondary_map;
 - 
 
374 
        active_read_buff_write(map[sc]);
 - 
 
375 
        break;
 - 
 
376 
    }
 - 
 
377 
    /*spinlock_unlock(&keylock);*/
 - 
 
378 
 
 - 
 
379 
}
 - 
 
380 
 
 - 
 
381 
static char key_read(chardev_t *d)
 176 
char key_read(chardev_t *d)
382 
{
 177 
{
383 
    char ch;   
 178 
    char ch;   
384 
 
 179 
 
385 
    while(!(ch = active_read_buff_read())) {
 180 
    while(!(ch = active_read_buff_read())) {
386 
        uint8_t x;
 181 
        uint8_t x;