45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#define KEYBOARD_INTERRUPT_BUF_CAP 100
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typedef struct {
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volatile uint32_t len;
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uint8_t *buf;
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uint32_t copy_len;
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uint8_t *copy_buf;
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uint8_t copy_pressed[16];
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} keyboard_interrupt_shared_t;
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#define KEYCODE_SHIFT 42
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#define KEYCODE_ENTER 28
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#define KEYCODE_BACKSPACE 14
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/* decoding */
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static const char keysym_mapped_ascii_lower[] = {
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0 , 0 , '1', '2', '3', '4', '5', '6',
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'7', '8', '9', '0', '-', '=', 0 , 0 , 'q', 'w', 'e', 'r', 't', 'y',
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'u', 'i', 'o', 'p', '[', ']', '\n', 0 , 'a', 's', 'd', 'f', 'g',
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'h', 'j', 'k', 'l', ';', '\'', '`', 0 , '\\', 'z', 'x', 'c', 'v',
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'b', 'n', 'm', ',', '.', '/', 0 , 0 , 0 , ' ',
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};
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static const char keysym_mapped_ascii_upper[] = {
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0 , 0 , '!', '@', '#', '$', '%', '^',
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'&', '*', '(', ')', '_', '+', 0 , 0 , 'Q', 'W', 'E', 'R', 'T', 'Y',
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'U', 'I', 'O', 'P', '{', '}', '\n', 0 , 'A', 'S', 'D', 'F', 'G',
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'H', 'J', 'K', 'L', ':', '"', '~', 0 , '\\', 'Z', 'X', 'C', 'V',
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'B', 'N', 'M', '<', '>', '?' /* an actual question mark */, 0 , 0 , 0 , ' ',
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};
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extern keyboard_interrupt_shared_t kbd_state_shrd;
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void init_keyboard();
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uint8_t kbd_take_from_copy_buffer();
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bool kbd_can_take_from_copy_buffer();
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bool kbd_is_pressed(uint8_t code); |