/* 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. */ // ----- Includes ----- // AVR Includes #include // Project Includes #include // Local Includes #include "matrix_scan.h" // Matrix Configuration #include // ----- Macros ----- #define REG_SET(reg) reg |= (1 << ( matrix[row*(MAX_ROW_SIZE+1)+col] % 10 ) ) #define PIN_SET_COL(pin) \ switch ( scanMode ) { \ case scanCol: \ case scanCol_powrRow: \ case scanDual: \ REG_SET(port##pin); break; \ case scanRow_powrCol: REG_SET(ddr##pin); REG_SET(port##pin); break; \ } \ break #define PIN_SET_ROW(pin) \ switch ( scanMode ) { \ case scanRow: \ case scanRow_powrCol: \ case scanDual: \ REG_SET(port##pin); break; \ case scanCol_powrRow: REG_SET(ddr##pin); REG_SET(port##pin); 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 #define PIN_TEST_COL(pin) \ if ( !( pin & ( 1 << ( matrix[0*(MAX_ROW_SIZE+1)+col] % 10 ) ) ) ) \ detectArray[matrix[row*(MAX_ROW_SIZE+1)+col]]++; \ break // ----- Variables ----- // ----- Functions ----- // Goes through the defined matrix and matrix mode, and sets the initial state of all of the available pins inline void matrix_pinSetup( uint8_t *matrix ) { // Setup the variables 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; // Loop through all the pin assignments, for the initial pin settings uint16_t row, col; // Rows for ( col = 0, row = 1; row < MAX_COL_SIZE + 1; 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] ) { PIN_CASE(A): PIN_SET_ROW(A); PIN_CASE(B): PIN_SET_ROW(B); PIN_CASE(C): PIN_SET_ROW(C); PIN_CASE(D): PIN_SET_ROW(D); PIN_CASE(E): PIN_SET_ROW(E); PIN_CASE(F): PIN_SET_ROW(F); default: continue; } } // Columns for ( col = 1, row = 0; col < (MAX_ROW_SIZE+1) + 1; 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] ) { PIN_CASE(A): PIN_SET_COL(A); PIN_CASE(B): PIN_SET_COL(B); PIN_CASE(C): PIN_SET_COL(C); PIN_CASE(D): PIN_SET_COL(D); PIN_CASE(E): PIN_SET_COL(E); PIN_CASE(F): PIN_SET_COL(F); default: continue; } } // Pin Status 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"); // Setting the pins #if defined(__AVR_AT90USB1286__) DDRA = ddrA; #endif DDRB = ddrB; DDRC = ddrC; DDRD = ddrD; DDRE = ddrE; DDRF = ddrF; #if defined(__AVR_AT90USB1286__) PORTA = portA; #endif PORTB = portB; PORTC = portC; PORTD = portD; PORTE = portE; PORTF = portF; } // TODO Proper matrix scanning inline void matrix_scan( uint8_t *matrix, uint8_t *detectArray ) { // Column Scan #if scanMode == scanCol uint16_t col = 1; uint16_t row = 1; for ( ; col < (MAX_ROW_SIZE+1) + 1; col++ ) { 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); } } #endif // Row Scan #if scanMode == scanRow #endif // Column Scan, Power Row #if scanMode == scanCol_powrRow #endif // Row Scan, Power Column #if scanMode == scanRow_powrCol #endif // Dual Scan #if scanMode == scanDual #endif }