63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/* Copyright (C) 2011 by Jacob Alexander
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef __SCAN_LOOP_H
|
|
#define __SCAN_LOOP_H
|
|
|
|
// ----- Includes -----
|
|
|
|
// Compiler Includes
|
|
#include <stdint.h>
|
|
|
|
// Local Includes
|
|
#include "matrix_scan.h"
|
|
|
|
// Matrix Configuration
|
|
#include <matrix.h>
|
|
|
|
|
|
|
|
// ----- Defines -----
|
|
|
|
#define KEYBOARD_BUFFER 24 // Max number of key signals to buffer
|
|
|
|
|
|
|
|
// ----- Variables -----
|
|
|
|
// NOTE: Highest Bit: Valid keypress (0x80 is valid keypress)
|
|
// Other Bits: Pressed state sample counter
|
|
extern uint8_t KeyIndex_Array [KEYBOARD_SIZE + 1];
|
|
static const uint8_t KeyIndex_Size = KEYBOARD_SIZE;
|
|
|
|
extern volatile uint8_t KeyIndex_Buffer[KEYBOARD_BUFFER];
|
|
extern volatile uint8_t KeyIndex_BufferUsed;
|
|
|
|
|
|
|
|
// ----- Functions -----
|
|
|
|
void scan_setup( void );
|
|
uint8_t scan_loop( void );
|
|
|
|
#endif // __SCAN_LOOP_H
|
|
|