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/* Copyright 2017 Jason Williams (Wilba)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "keymap.h" // to get keymaps[][][]
#include "tmk_core/common/eeprom.h"
#include "progmem.h"// to read default from flash
#include "dynamic_keymap.h"
#ifdef DYNAMIC_KEYMAP_ENABLE
#ifndef DYNAMIC_KEYMAP_EEPROM_ADDR
#error DYNAMIC_KEYMAP_EEPROM_ADDR not defined
#endif
#ifndef DYNAMIC_KEYMAP_LAYER_COUNT
#error DYNAMIC_KEYMAP_LAYER_COUNT not defined
#endif
void *dynamic_keymap_key_to_eeprom_address(uint8_t layer, uint8_t row, uint8_t column)
{
// TODO: optimize this with some left shifts
return ((void*)DYNAMIC_KEYMAP_EEPROM_ADDR) + ( layer * MATRIX_ROWS * MATRIX_COLS * 2 ) +
( row * MATRIX_COLS * 2 ) + ( column * 2 );
}
uint16_t dynamic_keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t column)
{
void *address = dynamic_keymap_key_to_eeprom_address(layer, row, column);
// Big endian, so we can read/write EEPROM directly from host if we want
uint16_t keycode = eeprom_read_byte(address) << 8;
keycode |= eeprom_read_byte(address + 1);
return keycode;
}
void dynamic_keymap_set_keycode(uint8_t layer, uint8_t row, uint8_t column, uint16_t keycode)
{
void *address = dynamic_keymap_key_to_eeprom_address(layer, row, column);
// Big endian, so we can read/write EEPROM directly from host if we want
eeprom_update_byte(address, (uint8_t)(keycode >> 8));
eeprom_update_byte(address+1, (uint8_t)(keycode & 0xFF));
}
void dynamic_keymap_reset(void)
{
// Reset the keymaps in EEPROM to what is in flash.
// All keyboards using dynamic keymaps should define a layout
// for the same number of layers as DYNAMIC_KEYMAP_LAYER_COUNT.
for ( int layer = 0; layer < DYNAMIC_KEYMAP_LAYER_COUNT; layer++ ) {
for ( int row = 0; row < MATRIX_ROWS; row++ ) {
for ( int column = 0; column < MATRIX_COLS; column++ ) {
dynamic_keymap_set_keycode(layer, row, column, pgm_read_word(&keymaps[layer][row][column]));
}
}
}
}
// This overrides the one in quantum/keymap_common.c
uint16_t keymap_key_to_keycode(uint8_t layer, keypos_t key)
{
if ( layer < DYNAMIC_KEYMAP_LAYER_COUNT &&
key.row < MATRIX_ROWS &&
key.col < MATRIX_COLS ) {
return dynamic_keymap_get_keycode(layer, key.row, key.col);
} else {
return KC_NO;
}
}
#endif // DYNAMIC_KEYMAP_ENABLE
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