diff options
Diffstat (limited to 'quantum')
| -rw-r--r-- | quantum/dynamic_keymap.c | 97 | ||||
| -rw-r--r-- | quantum/dynamic_keymap.h | 31 |
2 files changed, 128 insertions, 0 deletions
diff --git a/quantum/dynamic_keymap.c b/quantum/dynamic_keymap.c new file mode 100644 index 000000000..9f18612d5 --- /dev/null +++ b/quantum/dynamic_keymap.c @@ -0,0 +1,97 @@ +/* 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 "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 + +#define KC_EENULL 0xFFFF // TODO: move to enum quantum_keycodes + +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_clear_all(void) +{ + // Save "empty" keymaps. + 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, KC_EENULL); + } + } + } +} + +// This overrides the one in quantum/keymap_common.c +uint16_t keymap_key_to_keycode(uint8_t layer, keypos_t key) +{ + // This used to test EEPROM for magic bytes, but it was redundant. + // Test for EEPROM usage change (fresh install, address change, etc.) + // externally and call dynamic_keymap_default_save() + if ( layer < DYNAMIC_KEYMAP_LAYER_COUNT && + key.row < MATRIX_ROWS && // possibly redundant + key.col < MATRIX_COLS ) // possibly redundant + { + uint16_t keycode = dynamic_keymap_get_keycode(layer, key.row, key.col); + + // If keycode is not "empty", return it, otherwise + // drop down to return the one in flash + if ( keycode != KC_EENULL) + { + return keycode; + } + } + + return pgm_read_word(&keymaps[layer][key.row][key.col]); +} + +#endif // DYNAMIC_KEYMAP_ENABLE + diff --git a/quantum/dynamic_keymap.h b/quantum/dynamic_keymap.h new file mode 100644 index 000000000..b0133aeb8 --- /dev/null +++ b/quantum/dynamic_keymap.h @@ -0,0 +1,31 @@ +/* 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/>. + */ + +#ifndef DYNAMIC_KEYMAP_H +#define DYNAMIC_KEYMAP_H + +#include <stdint.h> +#include <stdbool.h> + +void *dynamic_keymap_key_to_eeprom_address(uint8_t layer, uint8_t row, uint8_t column); +uint16_t dynamic_keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t column); +void dynamic_keymap_set_keycode(uint8_t layer, uint8_t row, uint8_t column, uint16_t keycode); +void dynamic_keymap_clear_all(void); + +// This overrides the one in quantum/keymap_common.c +// uint16_t keymap_key_to_keycode(uint8_t layer, keypos_t key); + +#endif //DYNAMIC_KEYMAP_H |