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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 "quantum.h" // for send_string()
#include "dynamic_keymap.h"
#include "via.h" // for default VIA_EEPROM_ADDR_END
#ifndef DYNAMIC_KEYMAP_LAYER_COUNT
# define DYNAMIC_KEYMAP_LAYER_COUNT 4
#endif
#ifndef DYNAMIC_KEYMAP_MACRO_COUNT
# define DYNAMIC_KEYMAP_MACRO_COUNT 16
#endif
// If DYNAMIC_KEYMAP_EEPROM_ADDR not explicitly defined in config.h,
// default it start after VIA_EEPROM_CUSTOM_ADDR+VIA_EEPROM_CUSTOM_SIZE
#ifndef DYNAMIC_KEYMAP_EEPROM_ADDR
# ifdef VIA_EEPROM_CUSTOM_CONFIG_ADDR
# define DYNAMIC_KEYMAP_EEPROM_ADDR (VIA_EEPROM_CUSTOM_CONFIG_ADDR + VIA_EEPROM_CUSTOM_CONFIG_SIZE)
# else
# error DYNAMIC_KEYMAP_EEPROM_ADDR not defined
# endif
#endif
// Dynamic macro starts after dynamic keymaps
#ifndef DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR
# define DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR (DYNAMIC_KEYMAP_EEPROM_ADDR + (DYNAMIC_KEYMAP_LAYER_COUNT * MATRIX_ROWS * MATRIX_COLS * 2))
#endif
// Dynamic macro uses up all remaining memory
// Assumes 1K EEPROM on ATMega32U4
// Override for anything different
#ifndef DYNAMIC_KEYMAP_MACRO_EEPROM_SIZE
# define DYNAMIC_KEYMAP_MACRO_EEPROM_SIZE (1024 - DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR)
#endif
uint8_t dynamic_keymap_get_layer_count(void) { return DYNAMIC_KEYMAP_LAYER_COUNT; }
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]));
}
}
}
}
void dynamic_keymap_get_buffer(uint16_t offset, uint16_t size, uint8_t *data) {
uint16_t dynamic_keymap_eeprom_size = DYNAMIC_KEYMAP_LAYER_COUNT * MATRIX_ROWS * MATRIX_COLS * 2;
void * source = (void *)(DYNAMIC_KEYMAP_EEPROM_ADDR + offset);
uint8_t *target = data;
for (uint16_t i = 0; i < size; i++) {
if (offset + i < dynamic_keymap_eeprom_size) {
*target = eeprom_read_byte(source);
} else {
*target = 0x00;
}
source++;
target++;
}
}
void dynamic_keymap_set_buffer(uint16_t offset, uint16_t size, uint8_t *data) {
uint16_t dynamic_keymap_eeprom_size = DYNAMIC_KEYMAP_LAYER_COUNT * MATRIX_ROWS * MATRIX_COLS * 2;
void * target = (void *)(DYNAMIC_KEYMAP_EEPROM_ADDR + offset);
uint8_t *source = data;
for (uint16_t i = 0; i < size; i++) {
if (offset + i < dynamic_keymap_eeprom_size) {
eeprom_update_byte(target, *source);
}
source++;
target++;
}
}
// 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;
}
}
uint8_t dynamic_keymap_macro_get_count(void) { return DYNAMIC_KEYMAP_MACRO_COUNT; }
uint16_t dynamic_keymap_macro_get_buffer_size(void) { return DYNAMIC_KEYMAP_MACRO_EEPROM_SIZE; }
void dynamic_keymap_macro_get_buffer(uint16_t offset, uint16_t size, uint8_t *data) {
void * source = (void *)(DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR + offset);
uint8_t *target = data;
for (uint16_t i = 0; i < size; i++) {
if (offset + i < DYNAMIC_KEYMAP_MACRO_EEPROM_SIZE) {
*target = eeprom_read_byte(source);
} else {
*target = 0x00;
}
source++;
target++;
}
}
void dynamic_keymap_macro_set_buffer(uint16_t offset, uint16_t size, uint8_t *data) {
void * target = (void *)(DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR + offset);
uint8_t *source = data;
for (uint16_t i = 0; i < size; i++) {
if (offset + i < DYNAMIC_KEYMAP_MACRO_EEPROM_SIZE) {
eeprom_update_byte(target, *source);
}
source++;
target++;
}
}
void dynamic_keymap_macro_reset(void) {
void *p = (void *)(DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR);
void *end = (void *)(DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR + DYNAMIC_KEYMAP_MACRO_EEPROM_SIZE);
while (p != end) {
eeprom_update_byte(p, 0);
++p;
}
}
void dynamic_keymap_macro_send(uint8_t id) {
if (id >= DYNAMIC_KEYMAP_MACRO_COUNT) {
return;
}
// Check the last byte of the buffer.
// If it's not zero, then we are in the middle
// of buffer writing, possibly an aborted buffer
// write. So do nothing.
void *p = (void *)(DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR + DYNAMIC_KEYMAP_MACRO_EEPROM_SIZE - 1);
if (eeprom_read_byte(p) != 0) {
return;
}
// Skip N null characters
// p will then point to the Nth macro
p = (void *)(DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR);
void *end = (void *)(DYNAMIC_KEYMAP_MACRO_EEPROM_ADDR + DYNAMIC_KEYMAP_MACRO_EEPROM_SIZE);
while (id > 0) {
// If we are past the end of the buffer, then the buffer
// contents are garbage, i.e. there were not DYNAMIC_KEYMAP_MACRO_COUNT
// nulls in the buffer.
if (p == end) {
return;
}
if (eeprom_read_byte(p) == 0) {
--id;
}
++p;
}
// Send the macro string one or two chars at a time
// by making temporary 1 or 2 char strings
char data[3] = {0, 0, 0};
// We already checked there was a null at the end of
// the buffer, so this cannot go past the end
while (1) {
data[0] = eeprom_read_byte(p++);
data[1] = 0;
// Stop at the null terminator of this macro string
if (data[0] == 0) {
break;
}
// If the char is magic (tap, down, up),
// add the next char (key to use) and send a 2 char string.
if (data[0] == SS_TAP_CODE || data[0] == SS_DOWN_CODE || data[0] == SS_UP_CODE) {
data[1] = eeprom_read_byte(p++);
if (data[1] == 0) {
break;
}
}
send_string(data);
}
}
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