59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
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#ifndef KEYBOARD_HELPER_H
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#define KEYBAORD_HELPER_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "tusb.h"
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// look up new key in previous keys
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inline bool find_key_in_report(hid_keyboard_report_t const *p_report, uint8_t keycode)
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{
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for(uint8_t i = 0; i < 6; i++)
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{
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if (p_report->keycode[i] == keycode) return true;
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}
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return false;
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}
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inline uint8_t keycode_to_ascii(uint8_t modifier, uint8_t keycode)
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{
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return keycode > 128 ? 0 :
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hid_keycode_to_ascii_tbl [keycode][modifier & (KEYBOARD_MODIFIER_LEFTSHIFT | KEYBOARD_MODIFIER_RIGHTSHIFT) ? 1 : 0];
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}
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void print_kbd_report(hid_keyboard_report_t *prev_report, hid_keyboard_report_t const *new_report)
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{
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printf("Report: ");
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uint8_t c;
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// I assume it's possible to have up to 6 keypress events per report?
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for (uint8_t i = 0; i < 6; i++)
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{
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// Check for key presses
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if (new_report->keycode[i])
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{
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// If not in prev report then it is newly pressed
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if ( !find_key_in_report(prev_report, new_report->keycode[i]) )
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c = keycode_to_ascii(new_report->modifier, new_report->keycode[i]);
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printf("press %c ", c);
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}
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// Check for key depresses (i.e. was present in prev report but not here)
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if (prev_report->keycode[i])
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{
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// If not present in the current report then depressed
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if (!find_key_in_report(new_report, prev_report->keycode[i]))
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{
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c = keycode_to_ascii(prev_report->modifier, prev_report->keycode[i]);
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printf("depress %c ", c);
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}
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}
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}
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printf("\n");
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}
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#endif
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