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controller/Scan/matrix/matrix_scan.c
Jacob Alexander 15ec4ff71c Adding CLI and CDC Serial support for Teensy 2.0 and Teensy 2.0++
- Includes serial putchar and getchar cleanup (overall)
- Moved avr-capsense to DPH (renaming)
- Basic cleanup for including CLI on the avr architecture
2014-03-31 01:07:48 -07:00

408 lines
11 KiB
C

/* Copyright (C) 2011,2014 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.
*/
// ----- Includes -----
// AVR Includes
#include <avr/io.h>
#include <util/delay.h>
// Project Includes
#include <print.h>
// Local Includes
#include "matrix_scan.h"
// Matrix Configuration
#include <matrix.h>
// ----- Macros -----
// -- pinSetup Macros --
#define REG_SET(reg) reg |= (1 << ( matrix[row*(MAX_ROW_SIZE+1)+col] % 10 ) ) // Modulo 10 for the define offset for each pin set 12 or 32 -> shift of 2
#define REG_UNSET(reg) reg &= ~(1 << ( matrix[row*(MAX_ROW_SIZE+1)+col] % 10 ) )
#define PIN_SET(pin,scan,direction) \
switch ( direction ) { \
case columnSet: PIN_SET_COL(pin,scan); \
case rowSet: PIN_SET_ROW(pin,scan); \
} \
break
// TODO Only scanCol_powrRow Tested (and powrRow)
#define PIN_SET_COL(pin,scan) \
switch ( scan ) { \
case scanCol: \
case scanRow_powrCol: \
case scanDual: \
REG_SET(port##pin); break; \
case scanCol_powrRow: REG_UNSET(ddr##pin); REG_UNSET(DDR##pin); \
REG_SET(port##pin); REG_SET(PORT##pin); break; \
case powrRow: break; \
case powrCol: REG_SET(ddr##pin); REG_SET(DDR##pin); \
REG_SET(port##pin); REG_SET(PORT##pin); break; \
} \
break
// TODO Only scanCol_powrRow Tested (and powrRow)
#define PIN_SET_ROW(pin,scan) \
switch ( scan ) { \
case scanRow_powrCol: REG_UNSET(ddr##pin); REG_SET(port##pin); break; \
case scanRow: \
case scanDual: \
REG_SET(port##pin); break; \
case scanCol_powrRow: REG_SET(ddr##pin); REG_SET(DDR##pin); \
REG_UNSET(port##pin); REG_UNSET(PORT##pin); break; \
case powrRow: REG_SET(ddr##pin); REG_SET(DDR##pin); \
REG_SET(port##pin); REG_SET(PORT##pin); break; \
case powrCol: break; \
} \
break
#define PIN_CASE(pinLetter) \
case pin##pinLetter##0: \
case pin##pinLetter##1: \
case pin##pinLetter##2: \
case pin##pinLetter##3: \
case pin##pinLetter##4: \
case pin##pinLetter##5: \
case pin##pinLetter##6: \
case pin##pinLetter##7
// -- Column Scan Macros --
#define PIN_TEST_COL(pin) \
scanCode = matrix[row*(MAX_ROW_SIZE+1)+col]; \
if ( scanCode && !( pin & ( 1 << ( matrix[0*(MAX_ROW_SIZE+1)+col] % 10 ) ) ) ) \
{ \
detectArray[scanCode]++; \
} \
break
// -- Row Scan Macros --
#define PIN_TEST_ROW(pin) \
scanCode = matrix[row*(MAX_ROW_SIZE+1)+col]; \
if ( scanCode && !( pin & ( 1 << ( matrix[row*(MAX_ROW_SIZE+1)+0] % 10 ) ) ) ) \
{ \
detectArray[scanCode]++; \
} \
break
// -- Scan Dual Macros --
#define PIN_DUALTEST_ROW(pin) \
scanCode = matrix[row*(MAX_ROW_SIZE+1)+col]; \
if ( scanCode \
&& !( pin & ( 1 << ( matrix[row*(MAX_ROW_SIZE+1)+0] % 10 ) ) ) \
&& detectArray[scanCode] & 0x01 ) \
{ \
detectArray[scanCode]++; \
} \
else \
{ \
if ( detectArray[scanCode] & 0x01 ) \
detectArray[scanCode]--; \
} \
break
// ----- Variables -----
uint8_t showDebug = 0;
// Debug Variables for GPIO setting
uint8_t portA = 0x00;
uint8_t portB = 0x00;
uint8_t portC = 0x00;
uint8_t portD = 0x00;
uint8_t portE = 0x00;
uint8_t portF = 0x00;
uint8_t ddrA = 0x00;
uint8_t ddrB = 0x00;
uint8_t ddrC = 0x00;
uint8_t ddrD = 0x00;
uint8_t ddrE = 0x00;
uint8_t ddrF = 0x00;
// ----- Functions -----
void matrix_debugPins(void);
// Pin Setup Debug
inline void matrix_debugPins()
{
char tmpStr[6];
info_print("Initial Matrix Pin Setup");
info_print(" ddrA ddrB ddrC ddrD ddrE ddrF");
print(" ");
hexToStr_op( ddrA, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( ddrB, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( ddrC, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( ddrD, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( ddrE, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( ddrF, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
print("\n");
info_print("portA portB portC portD portE portF");
print(" ");
hexToStr_op( portA, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( portB, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( portC, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( portD, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( portE, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
hexToStr_op( portF, tmpStr, 2 ); dPrintStrs( " 0x", tmpStr );
print("\n");
showDebug++;
}
// Column Setup
inline void matrix_columnSet( uint8_t *matrix, uint8_t scanType, uint16_t startIndex, uint16_t colsToIterate )
{
// Calculate the number of pins to iterate over
uint8_t maxColumns = startIndex + colsToIterate - 1;
if ( maxColumns > MAX_COL_SIZE )
maxColumns = MAX_COL_SIZE;
uint16_t row, col;
// Columns
for ( col = startIndex, row = 0; col <= maxColumns; col++ )
{
// We can't pass 2D arrays, so just point to the first element and calculate directly
switch ( matrix[row*(MAX_ROW_SIZE+1)+col] )
{
#if defined(__AVR_AT90USB1286__)
PIN_CASE(A):
PIN_SET(A, scanType, columnSet);
#endif
PIN_CASE(B):
PIN_SET(B, scanType, columnSet);
PIN_CASE(C):
PIN_SET(C, scanType, columnSet);
PIN_CASE(D):
PIN_SET(D, scanType, columnSet);
PIN_CASE(E):
PIN_SET(E, scanType, columnSet);
PIN_CASE(F):
PIN_SET(F, scanType, columnSet);
default:
continue;
}
}
}
// Row Setup
inline void matrix_rowSet( uint8_t *matrix, uint8_t scanType, uint16_t startIndex, uint8_t rowsToIterate )
{
// Calculate the number of pins to iterate over
uint16_t maxRows = startIndex + rowsToIterate - 1;
if ( maxRows > MAX_ROW_SIZE )
maxRows = MAX_ROW_SIZE;
uint16_t row, col;
// Rows
for ( col = 0, row = startIndex; row <= maxRows; row++ )
{
// We can't pass 2D arrays, so just point to the first element and calculate directly
switch ( matrix[row*(MAX_ROW_SIZE+1)+col] )
{
#if defined(__AVR_AT90USB1286__)
PIN_CASE(A):
PIN_SET(A, scanType, rowSet);
#endif
PIN_CASE(B):
PIN_SET(B, scanType, rowSet);
PIN_CASE(C):
PIN_SET(C, scanType, rowSet);
PIN_CASE(D):
PIN_SET(D, scanType, rowSet);
PIN_CASE(E):
PIN_SET(E, scanType, rowSet);
PIN_CASE(F):
PIN_SET(F, scanType, rowSet);
default:
continue;
}
}
}
// Goes through the defined matrix and matrix mode, and sets the initial state of all of the available pins
void matrix_pinSetup( uint8_t *matrix, uint8_t scanType )
{
// Loop through all the pin assignments, for the initial pin settings
matrix_rowSet ( matrix, scanType, 1, MAX_ROW_SIZE );
matrix_columnSet( matrix, scanType, 1, MAX_COL_SIZE );
// Pin Status
if ( showDebug == 0 ) // Only show once
{
matrix_debugPins();
}
}
// Scans the given matrix determined by the scanMode method
inline void matrix_scan( uint8_t *matrix, uint8_t *detectArray )
{
// Loop variables for all modes
uint16_t col = 1;
uint16_t row = 1;
uint16_t scanCode = 0;
// TODO Only scanCol_powrRow tested
// Column Scan and Column Scan, Power Row
#if scanMode == scanCol || scanMode == scanCol_powrRow
for ( ; row <= MAX_ROW_SIZE; row++ )
{
// Power each row separately
matrix_rowSet( matrix, powrRow, row, 1 );
for ( col = 1; col <= MAX_COL_SIZE; col++ )
{
// Scan over the pins for each of the columns, and using the pin alias to determine which pin to set
// (e.g. / 10 is for the pin name (A,B,C,etc.) and % 10 is for the position of the pin (A1,A2,etc.))
switch ( matrix[0*(MAX_ROW_SIZE+1)+col] / 10 )
{
#if defined(__AVR_AT90USB1286__)
case 0: // PINA
PIN_TEST_COL(PINA);
#endif
case 1: // PINB
PIN_TEST_COL(PINB);
case 2: // PINC
PIN_TEST_COL(PINC);
case 3: // PIND
PIN_TEST_COL(PIND);
case 4: // PINE
PIN_TEST_COL(PINE);
case 5: // PINF
PIN_TEST_COL(PINF);
}
}
// Unset the row power
matrix_rowSet( matrix, scanMode, row, 1 );
}
#endif // scanMode
// Row Scan and Row Scan, Power Row
#if scanMode == scanRow || scanMode == scanRow_powrCol
for ( ; col <= MAX_COL_SIZE; col++ )
{
// Power each column separately
matrix_columnSet( matrix, powrCol, col, 1 );
for ( row = 1; row <= MAX_ROW_SIZE; row++ )
{
// Scan over the pins for each of the rows, and using the pin alias to determine which pin to set
// (e.g. / 10 is for the pin name (A,B,C,etc.) and % 10 is for the position of the pin (A1,A2,etc.))
switch ( matrix[row*(MAX_ROW_SIZE+1)+0] / 10 )
{
#if defined(__AVR_AT90USB1286__)
case 0: // PINA
PIN_TEST_ROW(PINA);
#endif
case 1: // PINB
PIN_TEST_ROW(PINB);
case 2: // PINC
PIN_TEST_ROW(PINC);
case 3: // PIND
PIN_TEST_ROW(PIND);
case 4: // PINE
PIN_TEST_ROW(PINE);
case 5: // PINF
PIN_TEST_ROW(PINF);
}
}
// Unset the column power
matrix_columnSet( matrix, scanMode, col, 1 );
}
#endif // scanMode
// Dual Scan
#if scanMode == scanDual
// First do a scan of all of the columns, marking each one
//matrix_pinSetup( matrix, scanCol_powrRow, 0, MAX_ROW_SIZE, MAX_COL_SIZE ); TODO
_delay_us( 1 );
for ( ; row < (MAX_COL_SIZE+1); row++ ) for ( ; col < (MAX_ROW_SIZE+1); col++ )
{
// Scan over the pins for each of the columns, and using the pin alias to determine which pin to set
// (e.g. / 10 is for the pin name (A,B,C,etc.) and % 10 is for the position of the pin (A1,A2,etc.))
switch ( matrix[0*(MAX_ROW_SIZE+1)+col] / 10 )
{
#if defined(__AVR_AT90USB1286__)
case 0: // PINA
PIN_TEST_COL(PINA);
#endif
case 1: // PINB
PIN_TEST_COL(PINB);
case 2: // PINC
PIN_TEST_COL(PINC);
case 3: // PIND
PIN_TEST_COL(PIND);
case 4: // PINE
PIN_TEST_COL(PINE);
case 5: // PINF
PIN_TEST_COL(PINF);
}
}
// Next, do a scan of all of the rows, clearing any "vague" keys (only detected on row, but not column, or vice-versa)
// And marking any keys that are detected on the row and column
//matrix_pinSetup( matrix, scanRow_powrCol, 0, MAX_ROW_SIZE, MAX_COL_SIZE ); TODO
_delay_us( 1 );
col = 1;
row = 1;
for ( ; col < (MAX_ROW_SIZE+1); col++ ) for ( ; row < (MAX_COL_SIZE+1); row++ )
{
// Scan over the pins for each of the rows, and using the pin alias to determine which pin to set
// (e.g. / 10 is for the pin name (A,B,C,etc.) and % 10 is for the position of the pin (A1,A2,etc.))
switch ( matrix[row*(MAX_ROW_SIZE+1)+0] / 10 )
{
#if defined(__AVR_AT90USB1286__)
case 0: // PINA
PIN_DUALTEST_ROW(PINA);
#endif
case 1: // PINB
PIN_DUALTEST_ROW(PINB);
case 2: // PINC
PIN_DUALTEST_ROW(PINC);
case 3: // PIND
PIN_DUALTEST_ROW(PIND);
case 4: // PINE
PIN_DUALTEST_ROW(PINE);
case 5: // PINF
PIN_DUALTEST_ROW(PINF);
}
}
#endif
}