1 /* Copyright (C) 2011 by Jacob Alexander
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 // ----- Includes -----
34 // ----- Defines -----
36 #define KEYBOARD_SIZE 0x4c // 76 - Size of the array space for the keyboardr(max index)
40 // ----- Variables -----
42 // NOTE: Highest Bit: Valid keypress (0x80 is valid keypress)
43 // Other Bits: Pressed state sample counter
44 extern uint8_t KeyIndex_Array [KEYBOARD_SIZE + 1];
45 static const uint8_t KeyIndex_Size = KEYBOARD_SIZE;
49 // ----- Functions -----
51 void scan_setup( void );
52 uint8_t scan_loop( void );
54 #endif // __SCAN_LOOP_H