remove col port arrays, add RowScanner_PinsBitwise, RowScanner_PinsArray, RowIOE

src/Row.cpp

@@ -1,7 +1,3 @@
-/* debounce() sets debounced and returns debouncedChanged.  All variables are bitwise.
-For parameter, 1 means pressed, 0 means released.
-For return, 1 means debounced changed.
-*/
 #include "Row.h"
 
 /*

src/Row.h

@@ -2,15 +2,12 @@
 #define ROW_H
 
 #include <RowBase.h>
-//#include <RowScanner_BitManipulation.h>
-#include <RowScanner_Arduino.h>
+#include <RowScanner_PinsArray.h>
 #include <Debouncer_4Samples.h>
 
 /*
 Configuration
 -------------
-define and initilize DELAY_MICROSECONDS in sketch.
-    const unsigned int RowBase::DELAY_MICROSECONDS = 0;
 
 Instantiation
 -------------
@@ -19,12 +16,12 @@ Instantiation
 class Row : public RowBase
 {
     private:
-        //RowScanner_BitManipulation scanner;
-        RowScanner_Arduino scanner;
+        RowScanner_PinsArray scanner;
         Debouncer_4Samples debouncer;
     public:
         //Row constructor was like Row_DH constructor
-        Row(const uint8_t strobePin, const uint8_t readPins[], const uint8_t READ_PIN_COUNT, Key *const ptrsKeys[])
+        Row(const uint8_t strobePin, const uint8_t readPins[], const uint8_t READ_PIN_COUNT,
+                Key *const ptrsKeys[])
             : RowBase(ptrsKeys), scanner(strobePin, readPins, READ_PIN_COUNT) { }
         virtual void process();
 };

src/RowBase.cpp

@@ -23,14 +23,14 @@ Tactile switch MJTP series bounce 10 ms http://www.apem.com/files/apem/brochures
 Avoid sampling the switch input at a rate synchronous to events in the environment
  that might create periodic EMI. For instance, 50 and 60 Hz.
 
-The largest allowabl DELAY_MICROSECONDS is 65535 (.065535 second).
+The largest allowable DELAY_MICROSECONDS is 65535 (.065535 seconds).
 
 Polling I2C may slow the scan rate enough so that no additional delay is needed:
     const unsigned int Row::DELAY_MICROSECONDS = 0;
 
 Slow-scan trick for debug messages that print too fast and not aligned, add this to sketch loop():
     delay(500);
-    Keyboard.println("");
+    Keyboard.println(F(""));
 That way debug messages are printed at a managable rate, and each scan starts a new line.
 */
 void RowBase::wait()

src/RowBase.h

@@ -5,6 +5,9 @@
 #include <Key.h>
 
 /* RowBase is an abstract base class.
+
+Define and initilize DELAY_MICROSECONDS in sketch.
+    const unsigned int RowBase::DELAY_MICROSECONDS = 0;
 */
 class RowBase
 {

src/RowIOE.cpp

@@ -0,0 +1,17 @@
+#include "RowIOE.h"
+
+/*
+process() scans the row and calls any newly pressed or released keys.
+*/
+void RowIOE::process()
+{
+    //these variables are all bitwise, one bit per key
+    uint8_t rowState;                           //1 means pressed, 0 means released
+    uint16_t rowEnd;                            //1 bit marks positioned after last key of row
+    uint8_t debouncedChanged;                   //1 means debounced changed
+
+    wait();
+    rowState = scanner.scan(rowEnd);
+    debouncedChanged = debouncer.debounce(rowState, debounced);
+    pressRelease(rowEnd, debouncedChanged);
+}

src/RowIOE.h

@@ -0,0 +1,28 @@
+#ifndef ROWIOE_H
+#define ROWIOE_H
+
+#include <RowBase.h>
+#include <RowScanner_PinsBitwise.h>
+#include <Debouncer_4Samples.h>
+
+/*
+Simlar to Row but using RowScanner_PinsBitwise.
+
+Configuration
+-------------
+
+Instantiation
+-------------
+*/
+class RowIOE : public RowBase
+{
+    private:
+        RowScanner_PinsBitwise scanner;
+        Debouncer_4Samples debouncer;
+    public:
+        RowIOE( RowPort& refRowPort, const uint8_t strobePin,
+             ColPort& refColPort, Key *const ptrsKeys[])
+            : RowBase(ptrsKeys), scanner(refRowPort, strobePin, refColPort) { }
+        virtual void process();
+};
+#endif

src/RowScanner_BitManipulation.cpp

@@ -1,78 +0,0 @@
-#include "RowScanner_BitManipulation.h"
-/*
-Strobes the row and reads the columns.
-Strobe is on for shortest possible time to preserve IR LED on DodoHand's optic switch.
-*/
-uint8_t RowScanner_BitManipulation::scan(uint16_t& rowEnd)
-{
-    //strobe row on
-    if (activeHigh)
-    {
-        refRowPort.setActivePinHigh(rowPin);
-    }
-    else //activeLow
-    {
-        refRowPort.setActivePinLow(rowPin);
-    }
-
-    //read all the column ports
-    for (uint8_t i=0; i < colPortCount; i++)
-    {
-        ptrsColPorts[i]->read();
-    }
-
-    //strobe row off
-    if (activeHigh)
-    {
-        refRowPort.setActivePinLow(rowPin);
-    }
-    else //activeLow
-    {
-        refRowPort.setActivePinHigh(rowPin);
-    }
-   
-    return getRowState(rowEnd);
-}
-
-/*
-Copies column pins to rowState.  Unused column pins are not copied.
-Sets rowEnd and returns rowState.
-rowEnd is a bitwise row mask, one col per bit, where active col bit is 1.
-At end of function, 1 bit marks place immediatly after last key of row.
-rowEnd is a larger type than portMask so that it can not overflow.
-*/
-uint8_t RowScanner_BitManipulation::getRowState(uint16_t& rowEnd)
-{
-    uint8_t rowState = 0;           //bitwise, one key per bit, 1 means key is pressed
-
-    rowEnd = 1;
-
-    for (uint8_t i=0; i < colPortCount; i++)    //for each col port
-    {
-        //bitwise colPins, 1 means pin is connected to column
-        uint8_t colPins = ptrsColPorts[i]->getColPins();
-
-        //bitwise colPortState, pin values where set in ColPort::read(), get them now
-        uint8_t colPortState = ptrsColPorts[i]->getPortState();
-
-        if (activeHigh)
-        {
-            colPortState = ~colPortState;
-        }
-
-        for ( uint8_t portMask = 1; portMask > 0; portMask <<= 1 ) //shift portMask until overflow
-        {                                       //for each pin of col port
-            if (portMask & colPins)             //if pin is connected to column
-            {
-                if (portMask & ~colPortState)   //if pin detected a key press
-                {
-                    rowState |= rowEnd;         //set rowState bit for that key
-                }
-
-                rowEnd <<= 1;                   //shift rowEnd to next key
-            }
-        }
-    }
-
-    return rowState;
-}

src/RowScanner_BitManipulation.h

@@ -1,29 +0,0 @@
-#ifndef ROWSCANNER_BITMANIPULATION_H
-#define ROWSCANNER_BITMANIPULATION_H
-#include <Arduino.h>
-#include <inttypes.h>
-#include <RowScannerInterface.h>
-#include <RowPort.h>
-#include <ColPort.h>
-
-/* RowScanner_BitManipulation uses bit manipulation to read all pins of one port.
-*/
-class RowScanner_BitManipulation : public RowScannerInterface
-{
-    private:
-        static const bool activeHigh;       //logic level of strobe pin: 0=activeLow, 1=activeHigh
-        RowPort &refRowPort;                //this row's IC port
-        const uint8_t rowPin;               //bitwise, 1 indicates IC pin connected to this row
-
-        ColPort *const *const ptrsColPorts; //array of column ports
-        const uint8_t colPortCount;
-
-    public:
-        RowScanner_BitManipulation(RowPort &refRowPort, const uint8_t rowPin,
-            ColPort *const ptrsColPorts[], const uint8_t colPortCount)
-            : refRowPort(refRowPort), rowPin(rowPin),
-              ptrsColPorts(ptrsColPorts), colPortCount(colPortCount) {}
-        virtual uint8_t scan(uint16_t& rowEnd);
-        uint8_t getRowState(uint16_t& rowEnd);
-};
-#endif

src/RowScanner_PinsArray.cpp

@@ -1,4 +1,4 @@
-#include "RowScanner_Arduino.h"
+#include "RowScanner_PinsArray.h"
 
 /*
 Strobes the row and reads the columns.
@@ -7,7 +7,7 @@ rowEnd is a bitwise row mask, one col per bit, where active col bit is 1.
 At end of function, 1 bit marks place immediatly after last key of row.
 rowEnd is a larger type than portMask so that it can not overflow.
 */
-uint8_t RowScanner_Arduino::scan(uint16_t& rowEnd)
+uint8_t RowScanner_PinsArray::scan(uint16_t& rowEnd)
 {
     uint8_t rowState = 0;
     rowEnd = 1;
@@ -23,7 +23,7 @@ uint8_t RowScanner_Arduino::scan(uint16_t& rowEnd)
     }
     delayMicroseconds(3);                       //time to stablize voltage
 
-    //read all the column ports
+    //read all the column pins
     for (uint8_t i=0; i < READ_PIN_COUNT; i++)
     {
         if ( digitalRead(readPins[i]) == activeHigh )

src/RowScanner_PinsArray.h

@@ -1,14 +1,14 @@
-#ifndef ROWSCANNER_ARDUINO_H
-#define ROWSCANNER_ARDUINO_H
+#ifndef ROWSCANNER_PINSARRAY_H
+#define ROWSCANNER_PINSARRAY_H
 #include <Arduino.h>
 #include <inttypes.h>
 #include <RowScannerInterface.h>
 #include <RowPort.h>
 #include <ColPort.h>
 
-/* RowScanner_Arduino class uses Arduino pin numbers (no port name).
+/* RowScanner_PinsArray class uses Arduino pin numbers (no port name).
 */
-class RowScanner_Arduino : public RowScannerInterface
+class RowScanner_PinsArray : public RowScannerInterface
 {
     private:
         static const bool activeHigh;           //logic level of strobe pin: 0=activeLow, 1=activeHigh
@@ -16,7 +16,7 @@ class RowScanner_Arduino : public RowScannerInterface
         const uint8_t* readPins;                //array of read pin numbers
         const uint8_t READ_PIN_COUNT;           //number of read pins
     public:
-        RowScanner_Arduino(const uint8_t strobePin,
+        RowScanner_PinsArray(const uint8_t strobePin,
                 const uint8_t readPins[], const uint8_t READ_PIN_COUNT)
             : strobePin(strobePin), readPins(readPins), READ_PIN_COUNT(READ_PIN_COUNT)
         {

src/RowScanner_PinsBitwise.cpp

@@ -0,0 +1,79 @@
+#include "RowScanner_PinsBitwise.h"
+/*
+Strobes the row and reads the columns.
+Strobe is on for shortest possible time to preserve IR LED on DodoHand's optic switch.
+*/
+uint8_t RowScanner_PinsBitwise::scan(uint16_t& rowEnd)
+{
+    //strobe row on
+    if (activeHigh)
+    {
+        refRowPort.setActivePinHigh(strobePin);
+    }
+    else //activeLow
+    {
+        refRowPort.setActivePinLow(strobePin);
+    }
+    delayMicroseconds(3);                       //time to stablize voltage
+
+    //read all the port pins
+    refColPort.read();
+/* shows strobing pin 1 and 2, but realy stobing 0 and 1 todo
+Keyboard.print(F(" strobePin="));
+Keyboard.print(strobePin);
+Keyboard.print(F(", "));
+*/
+    //strobe row off
+    if (activeHigh)
+    {
+        refRowPort.setActivePinLow(strobePin);
+    }
+    else //activeLow
+    {
+        refRowPort.setActivePinHigh(strobePin);
+    }
+   
+    return getRowState(rowEnd);
+}
+
+/*
+Copies column pins to rowState.  Unused column pins are not copied.
+Sets rowEnd and returns rowState.
+rowEnd is a bitwise row mask, one col per bit, where active col bit is 1.
+At end of function, 1 bit marks place immediatly after last key of row.
+rowEnd is a larger type than portMask so that it can not overflow.
+*/
+uint8_t RowScanner_PinsBitwise::getRowState(uint16_t& rowEnd)
+{
+    uint8_t rowState = 0;           //bitwise, one key per bit, 1 means key is pressed
+    uint8_t portMask;               //bitwise, 1 bit is a colPortState position
+
+    rowEnd = 1;
+
+    //bitwise colPins, 1 means pin is connected to column
+    uint8_t colPins = refColPort.getColPins();
+
+    //bitwise colPortState, pin values where set in ColPort::read(), get them now
+    uint8_t colPortState = refColPort.getPortState();
+
+    if (activeHigh)
+    {
+        colPortState = ~colPortState;
+    }
+
+    for ( portMask = 1; portMask > 0; portMask <<= 1 ) //shift portMask until overflow
+    {                                       //for each pin of col port
+        if (portMask & colPins)             //if pin is connected to column
+        {
+            if (portMask & ~colPortState)   //if pin detected a key press
+            {
+                rowState |= rowEnd;         //set rowState bit for that key
+            }
+
+            rowEnd <<= 1;                   //shift rowEnd to next key
+        }
+    }
+//todo Keyboard.print(rowState);
+
+    return rowState;
+}

src/RowScanner_PinsBitwise.h

@@ -0,0 +1,26 @@
+#ifndef ROWSCANNER_PINSBITWISE_H
+#define ROWSCANNER_PINSBITWISE_H
+#include <Arduino.h>
+#include <inttypes.h>
+#include <RowScannerInterface.h>
+#include <RowPort.h>
+#include <ColPort.h>
+
+/* RowScanner_PinsBitwise uses bit manipulation to read all pins of one port.
+*/
+class RowScanner_PinsBitwise : public RowScannerInterface
+{
+    private:
+        static const bool activeHigh;       //logic level of strobe pin: 0=activeLow, 1=activeHigh
+        RowPort& refRowPort;                //this row's IC port
+        const uint8_t strobePin;            //bitwise, 1 indicates IC pin connected to this row
+        ColPort& refColPort;
+    public:
+        RowScanner_PinsBitwise(RowPort &refRowPort, const uint8_t strobePin,
+            ColPort& refColPort)
+            : refRowPort(refRowPort), strobePin(strobePin),
+              refColPort(refColPort) {}
+        virtual uint8_t scan(uint16_t& rowEnd);
+        uint8_t getRowState(uint16_t& rowEnd);
+};
+#endif