#include <stdint.h>
#include <stdbool.h>
#include <avr/pgmspace.h>
-#include <avr/interrupt.h>
#include "usb_keyboard.h"
#include "usb_keycodes.h"
#include "print.h"
#include "keymap_skel.h"
+// Convert physical keyboard layout to matrix array.
+// This is a macro to define keymap easily in keyboard layout form.
#define KEYMAP( \
R1C1, R1C0, R2C0, R3C0, R4C0, R4C1, R5C1, R5C0, R6C0, R7C0, R8C0, R8C1, R6C1, R0C2, \
R1C2, R1C3, R2C3, R3C3, R4C3, R4C2, R5C2, R5C3, R6C3, R7C3, R8C3, R8C2, R6C2, \
#define KEYCODE(layer, row, col) (pgm_read_byte(&keymaps[(layer)][(row)][(col)]))
-static const uint8_t PROGMEM fn_layer[] = { 0, 1, 2, 3, 4, 0, 2, 3 };
+// Assign Fn key(0-7) to a layer to which switch with the Fn key pressed.
+static const uint8_t PROGMEM fn_layer[] = {
+ 0, // FN_0
+ 1, // FN_1
+ 2, // FN_2
+ 3, // FN_3
+ 4, // FN_4
+ 0, // FN_5
+ 2, // FN_6
+ 3 // FN_7
+};
+// Assign Fn key(0-7) to a keycode sent when release Fn key without use of the layer.
+// See layer.c for details.
static const uint8_t PROGMEM fn_keycode[] = {
- KB_NO, // FN_0 [NOT USED]
- KB_NO, // FN_1 layer 1
- KB_SLSH, // FN_2 layer 2
- KB_SCLN, // FN_3 layer 3
- KB_SPC, // FN_4 layer 4
- KB_NO, // FN_5 [NOT USED]
- KB_NO, // FN_6 layer 2
- KB_NO // FN_7 layer 3
+ KB_NO, // FN_0
+ KB_NO, // FN_1
+ KB_SLSH, // FN_2
+ KB_SCLN, // FN_3
+ KB_SPC, // FN_4
+ KB_NO, // FN_5
+ KB_NO, // FN_6
+ KB_NO // FN_7
};
static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
return KEYCODE(layer, row, col);
}
-int keymap_fn_layer(uint8_t fn_bits)
+uint8_t keymap_fn_layer(uint8_t fn_bits)
{
return pgm_read_byte(&fn_layer[biton(fn_bits)]);
}
return pgm_read_byte(&fn_keycode[(biton(fn_bits))]);
}
+// define a condition to enter special function mode
bool keymap_is_special_mode(uint8_t fn_bits)
{
//return (usb_keyboard_mods == (BIT_LCTRL | BIT_LSHIFT | BIT_LALT | BIT_LGUI));