Rev 1841 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 1841 | Rev 1842 | ||
|---|---|---|---|
| Line 34... | Line 34... | ||
| 34 | * @brief i8042 processor driver. |
34 | * @brief i8042 processor driver. |
| 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/i8042/i8042.h> |
39 | #include <genarch/kbd/i8042.h> |
| - | 40 | #include <genarch/kbd/scanc.h> |
|
| - | 41 | #include <genarch/kbd/scanc_pc.h> |
|
| 40 | #include <arch/drivers/i8042.h> |
42 | #include <arch/drivers/i8042.h> |
| 41 | #include <arch/interrupt.h> |
43 | #include <arch/interrupt.h> |
| 42 | #include <cpu.h> |
44 | #include <cpu.h> |
| 43 | #include <arch/asm.h> |
45 | #include <arch/asm.h> |
| 44 | #include <arch.h> |
46 | #include <arch.h> |
| Line 76... | Line 78... | ||
| 76 | #define i8042_WAIT_MASK 0x02 |
78 | #define i8042_WAIT_MASK 0x02 |
| 77 | #define i8042_MOUSE_DATA 0x20 |
79 | #define i8042_MOUSE_DATA 0x20 |
| 78 | 80 | ||
| 79 | #define KEY_RELEASE 0x80 |
81 | #define KEY_RELEASE 0x80 |
| 80 | 82 | ||
| 81 | /** |
- | |
| 82 | * These codes read from i8042 data register are silently ignored. |
- | |
| 83 | */ |
- | |
| 84 | #define IGNORE_CODE 0x7f |
- | |
| 85 | - | ||
| 86 | static void key_released(uint8_t sc); |
83 | static void key_released(uint8_t sc); |
| 87 | static void key_pressed(uint8_t sc); |
84 | static void key_pressed(uint8_t sc); |
| 88 | static char key_read(chardev_t *d); |
85 | static char key_read(chardev_t *d); |
| 89 | 86 | ||
| 90 | #define PRESSED_SHIFT (1<<0) |
87 | #define PRESSED_SHIFT (1<<0) |
| Line 388... | Line 385... | ||
| 388 | while(!(ch = active_read_buff_read())) { |
385 | while(!(ch = active_read_buff_read())) { |
| 389 | uint8_t x; |
386 | uint8_t x; |
| 390 | while (!(i8042_status_read() & i8042_BUFFER_FULL_MASK)) |
387 | while (!(i8042_status_read() & i8042_BUFFER_FULL_MASK)) |
| 391 | ; |
388 | ; |
| 392 | x = i8042_data_read(); |
389 | x = i8042_data_read(); |
| 393 | if (x != IGNORE_CODE) { |
- | |
| 394 | if (x & KEY_RELEASE) |
390 | if (x & KEY_RELEASE) |
| 395 | key_released(x ^ KEY_RELEASE); |
391 | key_released(x ^ KEY_RELEASE); |
| 396 | else |
392 | else |
| 397 | active_read_key_pressed(x); |
393 | active_read_key_pressed(x); |
| 398 | } |
- | |
| 399 | } |
394 | } |
| 400 | return ch; |
395 | return ch; |
| 401 | } |
396 | } |
| 402 | 397 | ||
| 403 | /** Poll for key press and release events. |
398 | /** Poll for key press and release events. |
| Line 408... | Line 403... | ||
| 408 | { |
403 | { |
| 409 | uint8_t x; |
404 | uint8_t x; |
| 410 | 405 | ||
| 411 | while (((x = i8042_status_read() & i8042_BUFFER_FULL_MASK))) { |
406 | while (((x = i8042_status_read() & i8042_BUFFER_FULL_MASK))) { |
| 412 | x = i8042_data_read(); |
407 | x = i8042_data_read(); |
| 413 | if (x != IGNORE_CODE) { |
- | |
| 414 | if (x & KEY_RELEASE) |
408 | if (x & KEY_RELEASE) |
| 415 | key_released(x ^ KEY_RELEASE); |
409 | key_released(x ^ KEY_RELEASE); |
| 416 | else |
410 | else |
| 417 | key_pressed(x); |
411 | key_pressed(x); |
| 418 | } |
- | |
| 419 | } |
412 | } |
| 420 | } |
413 | } |
| 421 | 414 | ||
| 422 | /** @} |
415 | /** @} |
| 423 | */ |
416 | */ |
| 424 | - | ||