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controller/Scan/MD2/matrix.h
2015-01-25 17:55:28 -08:00

64 lines
2.2 KiB
C

/* Copyright (C) 2014 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 __MATRIX_H
#define __MATRIX_H
// ----- Macros -----
// Convenience Macros
#define gpio( port, pin ) { Port_##port, Pin_##pin }
#define Matrix_colsNum sizeof( Matrix_cols ) / sizeof( GPIO_Pin )
#define Matrix_rowsNum sizeof( Matrix_rows ) / sizeof( GPIO_Pin )
#define Matrix_maxKeys sizeof( Matrix_scanArray ) / sizeof( KeyState )
// ----- Matrix Definition -----
// Freescale ARM MK20's support GPIO PTA, PTB, PTC, PTD and PTE 0..31
// Not all chips have access to all of these pins (most don't have 160 pins :P)
//
// NOTE:
// Before using a pin, make sure it supports being a GPIO *and* doesn't have a default pull-up/pull-down
// Checking this is completely on the ownness of the user
// MD1
//
// Columns (Strobe)
// PTB0..3,16,17
// PTC4,5
// PTD0
//
// Rows (Sense)
// PTD1..7
// Define Rows (Sense) and Columns (Strobes)
GPIO_Pin Matrix_cols[] = { gpio(B,0), gpio(B,1), gpio(B,2), gpio(B,3), gpio(B,16), gpio(B,17), gpio(C,4), gpio(C,5), gpio(D,0) };
GPIO_Pin Matrix_rows[] = { gpio(D,1), gpio(D,2), gpio(D,3), gpio(D,4), gpio(D,5), gpio(D,6), gpio(D,7) };
// Define type of scan matrix
Config Matrix_type = Config_Pulldown;
#endif // __MATRIX_H