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