1 /* Copyright 2017 Jason Williams (Wilba)
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 2 of the License, or
6 * (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include "keymap.h" // to get keymaps[][][]
19 #include "tmk_core/common/eeprom.h"
20 #include "progmem.h" // to read default from flash
22 #include "dynamic_keymap.h"
24 #ifdef DYNAMIC_KEYMAP_ENABLE
26 #ifndef DYNAMIC_KEYMAP_EEPROM_ADDR
27 #error DYNAMIC_KEYMAP_EEPROM_ADDR not defined
30 #ifndef DYNAMIC_KEYMAP_LAYER_COUNT
31 #error DYNAMIC_KEYMAP_LAYER_COUNT not defined
34 void *dynamic_keymap_key_to_eeprom_address(uint8_t layer, uint8_t row, uint8_t column)
36 // TODO: optimize this with some left shifts
37 return ((void*)DYNAMIC_KEYMAP_EEPROM_ADDR) + ( layer * MATRIX_ROWS * MATRIX_COLS * 2 ) +
38 ( row * MATRIX_COLS * 2 ) + ( column * 2 );
41 uint16_t dynamic_keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t column)
43 void *address = dynamic_keymap_key_to_eeprom_address(layer, row, column);
44 // Big endian, so we can read/write EEPROM directly from host if we want
45 uint16_t keycode = eeprom_read_byte(address) << 8;
46 keycode |= eeprom_read_byte(address + 1);
50 void dynamic_keymap_set_keycode(uint8_t layer, uint8_t row, uint8_t column, uint16_t keycode)
52 void *address = dynamic_keymap_key_to_eeprom_address(layer, row, column);
53 // Big endian, so we can read/write EEPROM directly from host if we want
54 eeprom_update_byte(address, (uint8_t)(keycode >> 8));
55 eeprom_update_byte(address+1, (uint8_t)(keycode & 0xFF));
58 void dynamic_keymap_reset(void)
60 // Reset the keymaps in EEPROM to what is in flash.
61 // All keyboards using dynamic keymaps should define a layout
62 // for the same number of layers as DYNAMIC_KEYMAP_LAYER_COUNT.
63 for ( int layer = 0; layer < DYNAMIC_KEYMAP_LAYER_COUNT; layer++ ) {
64 for ( int row = 0; row < MATRIX_ROWS; row++ ) {
65 for ( int column = 0; column < MATRIX_COLS; column++ ) {
66 dynamic_keymap_set_keycode(layer, row, column, pgm_read_word(&keymaps[layer][row][column]));
72 // This overrides the one in quantum/keymap_common.c
73 uint16_t keymap_key_to_keycode(uint8_t layer, keypos_t key)
75 if ( layer < DYNAMIC_KEYMAP_LAYER_COUNT &&
76 key.row < MATRIX_ROWS &&
77 key.col < MATRIX_COLS ) {
78 return dynamic_keymap_get_keycode(layer, key.row, key.col);
84 #endif // DYNAMIC_KEYMAP_ENABLE