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- /* 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
- }
-
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