71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
/*
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Copyright 2020 Constantine Chen @csc027
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "csc027.h"
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// Declare the strings in PROGMEM using the convenience macro
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CUSTOM_MACROS(CUSTOM_DEF, CUSTOM_MACRO_STRING, SEMI_DELIM);
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static const char* const custom_macros[] PROGMEM = {
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// Declare the pointer to the strings in PROGMEM
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CUSTOM_MACROS(CUSTOM_VAR, DROP, COMMA_DELIM)
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};
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bool process_record_user(uint16_t keycode, keyrecord_t *record) {
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switch(keycode) {
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case LOWER:
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if(record->event.pressed) {
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layer_on(_LW);
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} else {
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layer_off(_LW);
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}
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update_tri_layer(_LW, _RS, _MS);
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return false;
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case RAISE:
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if(record->event.pressed) {
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layer_on(_RS);
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} else {
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layer_off(_RS);
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}
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update_tri_layer(_LW, _RS, _MS);
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return false;
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case (MC_first + 1)...(MC_last - 1):
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if(record->event.pressed) {
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send_string_P(
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#if defined(__AVR__)
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// The accessor here first reads from the pointer array that is located
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// in PROGMEM. The pointer is taken and passed to the send_string_P
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// function, which is aware of the difference between RAM and PROGMEM
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// pointers.
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(char*)pgm_read_word(&custom_macros[keycode - MC_first - 1])
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#else
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// For non-AVR MCUs, the PROGMEM macro is defined as nothing. So, the strings are
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// declared in RAM instead of flash. The send_string_P function, when compiled for
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// non-AVR targets, uses a different definition of pgm_read_byte internally. This
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// definition uses RAM pointers instead. This is why the raw pointer is passed for
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// non-AVR MCUs.
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custom_macros[keycode - MC_first - 1]
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#endif
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);
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return true;
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}
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return false;
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default:
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return true;
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}
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}
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