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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | 29 | ||
30 | /** @addtogroup kbdia32 ia32 |
30 | /** @addtogroup kbdia32 |
31 | * @brief HelenOS ia32 / amd64 arch dependent parts of uspace keyboard handler. |
31 | * @brief Scancodes for PC keyboards. |
32 | * @ingroup kbd |
- | |
33 | * @{ |
32 | * @{ |
34 | */ |
33 | */ |
35 | /** @file |
34 | /** @file |
36 | * @ingroup kbdamd64 |
35 | * @ingroup kbdamd64 |
37 | */ |
36 | */ |
38 | 37 | ||
39 | #include <arch/kbd.h> |
38 | #include <genarch/scanc.h> |
40 | #include <ipc/ipc.h> |
- | |
41 | #include <unistd.h> |
- | |
42 | #include <kbd.h> |
- | |
43 | #include <keys.h> |
- | |
44 | - | ||
45 | /* Interesting bits for status register */ |
- | |
46 | #define i8042_OUTPUT_FULL 0x1 |
- | |
47 | #define i8042_INPUT_FULL 0x2 |
- | |
48 | #define i8042_MOUSE_DATA 0x20 |
- | |
49 | - | ||
50 | /* Command constants */ |
- | |
51 | #define i8042_CMD_KBD 0x60 |
- | |
52 | #define i8042_CMD_MOUSE 0xd4 |
- | |
53 | - | ||
54 | /* Keyboard cmd byte */ |
- | |
55 | #define i8042_KBD_IE 0x1 |
- | |
56 | #define i8042_MOUSE_IE 0x2 |
- | |
57 | #define i8042_KBD_DISABLE 0x10 |
- | |
58 | #define i8042_MOUSE_DISABLE 0x20 |
- | |
59 | #define i8042_KBD_TRANSLATE 0x40 |
- | |
60 | - | ||
61 | /* Mouse constants */ |
- | |
62 | #define MOUSE_OUT_INIT 0xf4 |
- | |
63 | #define MOUSE_ACK 0xfa |
- | |
64 | - | ||
65 | - | ||
66 | #define SPECIAL 255 |
- | |
67 | #define KEY_RELEASE 0x80 |
- | |
68 | - | ||
69 | /** |
- | |
70 | * These codes read from i8042 data register are silently ignored. |
- | |
71 | */ |
- | |
72 | #define IGNORE_CODE 0x7f |
- | |
73 | - | ||
74 | #define PRESSED_SHIFT (1<<0) |
- | |
75 | #define PRESSED_CAPSLOCK (1<<1) |
- | |
76 | #define LOCKED_CAPSLOCK (1<<0) |
- | |
77 | - | ||
78 | /** Scancodes. */ |
- | |
79 | #define SC_ESC 0x01 |
- | |
80 | #define SC_BACKSPACE 0x0e |
- | |
81 | #define SC_LSHIFT 0x2a |
- | |
82 | #define SC_RSHIFT 0x36 |
- | |
83 | #define SC_CAPSLOCK 0x3a |
- | |
84 | #define SC_SPEC_ESCAPE 0xe0 |
- | |
85 | #define SC_LEFTARR 0x4b |
- | |
86 | #define SC_RIGHTARR 0x4d |
- | |
87 | #define SC_UPARR 0x48 |
- | |
88 | #define SC_DOWNARR 0x50 |
- | |
89 | #define SC_DELETE 0x53 |
- | |
90 | #define SC_HOME 0x47 |
- | |
91 | #define SC_END 0x4f |
- | |
92 | - | ||
93 | #define FUNCTION_KEYS 0x100 |
- | |
94 | - | ||
95 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
- | |
96 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
- | |
97 | 39 | ||
98 | /** Primary meaning of scancodes. */ |
40 | /** Primary meaning of scancodes. */ |
99 | static int sc_primary_map[] = { |
41 | int sc_primary_map[] = { |
100 | SPECIAL, /* 0x00 */ |
42 | SPECIAL, /* 0x00 */ |
101 | SPECIAL, /* 0x01 - Esc */ |
43 | SPECIAL, /* 0x01 - Esc */ |
102 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
44 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
103 | '\b', /* 0x0e - Backspace */ |
45 | '\b', /* 0x0e - Backspace */ |
104 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
46 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
Line 174... | Line 116... | ||
174 | SPECIAL, /* 0x7e */ |
116 | SPECIAL, /* 0x7e */ |
175 | SPECIAL, /* 0x7f */ |
117 | SPECIAL, /* 0x7f */ |
176 | }; |
118 | }; |
177 | 119 | ||
178 | /** Secondary meaning of scancodes. */ |
120 | /** Secondary meaning of scancodes. */ |
179 | static int sc_secondary_map[] = { |
121 | int sc_secondary_map[] = { |
180 | SPECIAL, /* 0x00 */ |
122 | SPECIAL, /* 0x00 */ |
181 | 0x1b, /* 0x01 - Esc */ |
123 | 0x1b, /* 0x01 - Esc */ |
182 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
124 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
183 | SPECIAL, /* 0x0e - Backspace */ |
125 | SPECIAL, /* 0x0e - Backspace */ |
184 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
126 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
Line 253... | Line 195... | ||
253 | SPECIAL, /* 0x7d */ |
195 | SPECIAL, /* 0x7d */ |
254 | SPECIAL, /* 0x7e */ |
196 | SPECIAL, /* 0x7e */ |
255 | SPECIAL, /* 0x7f */ |
197 | SPECIAL, /* 0x7f */ |
256 | }; |
198 | }; |
257 | 199 | ||
258 | irq_cmd_t i8042_cmds[2] = { |
- | |
259 | { CMD_PORT_READ_1, (void *)0x64, 0, 1 }, |
- | |
260 | { CMD_PORT_READ_1, (void *)0x60, 0, 2 } |
- | |
261 | }; |
- | |
262 | - | ||
263 | irq_code_t i8042_kbd = { |
- | |
264 | 2, |
- | |
265 | i8042_cmds |
- | |
266 | }; |
- | |
267 | - | ||
268 | static void key_released(keybuffer_t *keybuffer, unsigned char key) |
- | |
269 | { |
- | |
270 | switch (key) { |
- | |
271 | case SC_LSHIFT: |
- | |
272 | case SC_RSHIFT: |
- | |
273 | keyflags &= ~PRESSED_SHIFT; |
- | |
274 | break; |
- | |
275 | case SC_CAPSLOCK: |
- | |
276 | keyflags &= ~PRESSED_CAPSLOCK; |
- | |
277 | if (lockflags & LOCKED_CAPSLOCK) |
- | |
278 | lockflags &= ~LOCKED_CAPSLOCK; |
- | |
279 | else |
- | |
280 | lockflags |= LOCKED_CAPSLOCK; |
- | |
281 | break; |
- | |
282 | default: |
- | |
283 | break; |
- | |
284 | } |
- | |
285 | } |
- | |
286 | - | ||
287 | static void key_pressed(keybuffer_t *keybuffer, unsigned char key) |
- | |
288 | { |
- | |
289 | int *map = sc_primary_map; |
- | |
290 | int ascii = sc_primary_map[key]; |
- | |
291 | int shift, capslock; |
- | |
292 | int letter = 0; |
- | |
293 | - | ||
294 | static int esc_count=0; |
- | |
295 | - | ||
296 | - | ||
297 | if ( key == SC_ESC ) { |
- | |
298 | esc_count++; |
- | |
299 | if ( esc_count == 3 ) { |
- | |
300 | __SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE); |
- | |
301 | } |
- | |
302 | } else { |
- | |
303 | esc_count=0; |
- | |
304 | } |
- | |
305 | - | ||
306 | - | ||
307 | - | ||
308 | switch (key) { |
- | |
309 | case SC_LSHIFT: |
- | |
310 | case SC_RSHIFT: |
- | |
311 | keyflags |= PRESSED_SHIFT; |
- | |
312 | break; |
- | |
313 | case SC_CAPSLOCK: |
- | |
314 | keyflags |= PRESSED_CAPSLOCK; |
- | |
315 | break; |
- | |
316 | case SC_SPEC_ESCAPE: |
- | |
317 | break; |
- | |
318 | /* case SC_LEFTARR: |
- | |
319 | if (keybuffer_available(keybuffer) >= 3) { |
- | |
320 | keybuffer_push(keybuffer, 0x1b); |
- | |
321 | keybuffer_push(keybuffer, 0x5b); |
- | |
322 | keybuffer_push(keybuffer, 0x44); |
- | |
323 | } |
- | |
324 | break; |
- | |
325 | case SC_RIGHTARR: |
- | |
326 | if (keybuffer_available(keybuffer) >= 3) { |
- | |
327 | keybuffer_push(keybuffer, 0x1b); |
- | |
328 | keybuffer_push(keybuffer, 0x5b); |
- | |
329 | keybuffer_push(keybuffer, 0x43); |
- | |
330 | } |
- | |
331 | break; |
- | |
332 | case SC_UPARR: |
- | |
333 | if (keybuffer_available(keybuffer) >= 3) { |
- | |
334 | keybuffer_push(keybuffer, 0x1b); |
- | |
335 | keybuffer_push(keybuffer, 0x5b); |
- | |
336 | keybuffer_push(keybuffer, 0x41); |
- | |
337 | } |
- | |
338 | break; |
- | |
339 | case SC_DOWNARR: |
- | |
340 | if (keybuffer_available(keybuffer) >= 3) { |
- | |
341 | keybuffer_push(keybuffer, 0x1b); |
- | |
342 | keybuffer_push(keybuffer, 0x5b); |
- | |
343 | keybuffer_push(keybuffer, 0x42); |
- | |
344 | } |
- | |
345 | break; |
- | |
346 | case SC_HOME: |
- | |
347 | if (keybuffer_available(keybuffer) >= 3) { |
- | |
348 | keybuffer_push(keybuffer, 0x1b); |
- | |
349 | keybuffer_push(keybuffer, 0x4f); |
- | |
350 | keybuffer_push(keybuffer, 0x48); |
- | |
351 | } |
- | |
352 | break; |
- | |
353 | case SC_END: |
- | |
354 | if (keybuffer_available(keybuffer) >= 3) { |
- | |
355 | keybuffer_push(keybuffer, 0x1b); |
- | |
356 | keybuffer_push(keybuffer, 0x4f); |
- | |
357 | keybuffer_push(keybuffer, 0x46); |
- | |
358 | } |
- | |
359 | break; |
- | |
360 | case SC_DELETE: |
- | |
361 | if (keybuffer_available(keybuffer) >= 4) { |
- | |
362 | keybuffer_push(keybuffer, 0x1b); |
- | |
363 | keybuffer_push(keybuffer, 0x5b); |
- | |
364 | keybuffer_push(keybuffer, 0x33); |
- | |
365 | keybuffer_push(keybuffer, 0x7e); |
- | |
366 | } |
- | |
367 | break; |
- | |
368 | */ default: |
- | |
369 | letter = ((ascii >= 'a') && (ascii <= 'z')); |
- | |
370 | capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
- | |
371 | shift = keyflags & PRESSED_SHIFT; |
- | |
372 | if (letter && capslock) |
- | |
373 | shift = !shift; |
- | |
374 | if (shift) |
- | |
375 | map = sc_secondary_map; |
- | |
376 | if (map[key] != SPECIAL) |
- | |
377 | keybuffer_push(keybuffer, map[key]); |
- | |
378 | break; |
- | |
379 | } |
- | |
380 | } |
- | |
381 | - | ||
382 | - | ||
383 | static void wait_ready(void) { |
- | |
384 | while (i8042_status_read() & i8042_INPUT_FULL) |
- | |
385 | ; |
- | |
386 | } |
- | |
387 | - | ||
388 | /** Register uspace irq handler |
- | |
389 | * @return |
- | |
390 | */ |
- | |
391 | int kbd_arch_init(void) |
- | |
392 | { |
- | |
393 | int i; |
- | |
394 | int mouseenabled = 0; |
- | |
395 | - | ||
396 | iospace_enable(task_get_id(),(void *)i8042_DATA, 5); |
- | |
397 | /* Disable kbd, enable mouse */ |
- | |
398 | i8042_command_write(i8042_CMD_KBD); |
- | |
399 | wait_ready(); |
- | |
400 | i8042_command_write(i8042_CMD_KBD); |
- | |
401 | wait_ready(); |
- | |
402 | i8042_data_write(i8042_KBD_DISABLE); |
- | |
403 | wait_ready(); |
- | |
404 | - | ||
405 | /* Flush all current IO */ |
- | |
406 | while (i8042_status_read() & i8042_OUTPUT_FULL) |
- | |
407 | i8042_data_read(); |
- | |
408 | /* Initialize mouse */ |
- | |
409 | i8042_command_write(i8042_CMD_MOUSE); |
- | |
410 | wait_ready(); |
- | |
411 | i8042_data_write(MOUSE_OUT_INIT); |
- | |
412 | wait_ready(); |
- | |
413 | - | ||
414 | int mouseanswer = 0; |
- | |
415 | for (i=0;i < 1000; i++) { |
- | |
416 | int status = i8042_status_read(); |
- | |
417 | if (status & i8042_OUTPUT_FULL) { |
- | |
418 | int data = i8042_data_read(); |
- | |
419 | if (status & i8042_MOUSE_DATA) { |
- | |
420 | mouseanswer = data; |
- | |
421 | break; |
- | |
422 | } |
- | |
423 | } |
- | |
424 | usleep(1000); |
- | |
425 | } |
- | |
426 | if (mouseanswer == MOUSE_ACK) { |
- | |
427 | /* enable mouse */ |
- | |
428 | mouseenabled = 1; |
- | |
429 | - | ||
430 | ipc_register_irq(MOUSE_IRQ, &i8042_kbd); |
- | |
431 | } |
- | |
432 | /* Enable kbd */ |
- | |
433 | ipc_register_irq(KBD_IRQ, &i8042_kbd); |
- | |
434 | /* Register for irq restart */ |
- | |
435 | ipc_register_irq(IPC_IRQ_KBDRESTART, NULL); |
- | |
436 | - | ||
437 | int newcontrol = i8042_KBD_IE | i8042_KBD_TRANSLATE; |
- | |
438 | if (mouseenabled) |
- | |
439 | newcontrol |= i8042_MOUSE_IE; |
- | |
440 | - | ||
441 | i8042_command_write(i8042_CMD_KBD); |
- | |
442 | wait_ready(); |
- | |
443 | i8042_data_write(newcontrol); |
- | |
444 | wait_ready(); |
- | |
445 | - | ||
446 | return 0; |
- | |
447 | } |
- | |
448 | - | ||
449 | /** Process keyboard & mouse events */ |
- | |
450 | int kbd_arch_process(keybuffer_t *keybuffer, ipc_call_t *call) |
- | |
451 | { |
- | |
452 | int status = IPC_GET_ARG1(*call); |
- | |
453 | - | ||
454 | if (IPC_GET_METHOD(*call) == IPC_IRQ_KBDRESTART) { |
- | |
455 | kbd_arch_init(); |
- | |
456 | return 1; |
- | |
457 | } |
- | |
458 | - | ||
459 | if ((status & i8042_MOUSE_DATA)) |
- | |
460 | return 0; |
- | |
461 | - | ||
462 | int scan_code = IPC_GET_ARG2(*call); |
- | |
463 | - | ||
464 | if (scan_code != IGNORE_CODE) { |
- | |
465 | if (scan_code & KEY_RELEASE) |
- | |
466 | key_released(keybuffer, scan_code ^ KEY_RELEASE); |
- | |
467 | else |
- | |
468 | key_pressed(keybuffer, scan_code); |
- | |
469 | } |
- | |
470 | return 1; |
- | |
471 | } |
- | |
472 | - | ||
473 | /** |
200 | /** |
474 | * @} |
201 | * @} |
475 | */ |
202 | */ |
476 | - |