1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
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
|
