70 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			70 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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| Copyright 2020 Constantine Chen @csc027
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| 
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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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| 
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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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| 
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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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| 
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| #include "csc027.h"
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| 
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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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| 
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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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| 
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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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