Added support for ghosting matrices and code for elimination.

To use define GHOST in matrix.h, see example in Scan/CK3

Scan/CK3/scan_loop.c

@@ -0,0 +1,204 @@
+/* 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.
+ */
+
+// ----- Includes -----
+
+// Compiler Includes
+#include <Lib/ScanLib.h>
+
+// Project Includes
+#include <cli.h>
+#include <led.h>
+#include <print.h>
+#include <matrix_scan.h>
+#include <macro.h>
+
+// Local Includes
+#include "scan_loop.h"
+
+
+
+// ----- Function Declarations -----
+
+// CLI Functions
+void cliFunc_echo( char* args );
+
+
+
+// ----- Variables -----
+
+// Scan Module command dictionary
+CLIDict_Entry( echo,        "Example command, echos the arguments." );
+
+CLIDict_Def( scanCLIDict, "Scan Module Commands" ) = {
+	CLIDict_Item( echo ),
+	{ 0, 0, 0 } // Null entry for dictionary end
+};
+
+// Number of scans since the last USB send
+uint16_t Scan_scanCount = 0;
+
+
+
+// ----- Functions -----
+
+// Setup
+inline void Scan_setup()
+{
+	// Register Scan CLI dictionary
+	CLI_registerDictionary( scanCLIDict, scanCLIDictName );
+
+	// Setup GPIO pins for matrix scanning
+	Matrix_setup();
+
+	// Reset scan count
+	Scan_scanCount = 0;
+}
+
+
+// Main Detection Loop
+inline uint8_t Scan_loop()
+{
+	Matrix_scan( Scan_scanCount++ );
+
+	return 0;
+}
+
+
+// Signal from Macro Module that all keys have been processed (that it knows about)
+inline void Scan_finishedWithMacro( uint8_t sentKeys )
+{
+}
+
+
+// Signal from Output Module that all keys have been processed (that it knows about)
+inline void Scan_finishedWithOutput( uint8_t sentKeys )
+{
+	// Reset scan loop indicator (resets each key debounce state)
+	// TODO should this occur after USB send or Macro processing?
+	Scan_scanCount = 0;
+}
+
+
+
+// ----- Capabilities -----
+
+// Custom capability examples
+// Refer to kll.h in Macros/PartialMap for state and stateType information
+void CustomAction_action1_capability( uint8_t state, uint8_t stateType, uint8_t *args )
+{
+	// Display capability name
+	// XXX This is required for debug cli to give you a list of capabilities
+	if ( stateType == 0xFF && state == 0xFF )
+	{
+		print("CustomAction_action1_capability()");
+		return;
+	}
+
+	// Prints Action1 info message to the debug cli
+	info_print("Action1");
+}
+
+uint8_t CustomAction_blockHold_storage = 0;
+void CustomAction_blockHold_capability( uint8_t state, uint8_t stateType, uint8_t *args )
+{
+	// Display capability name
+	if ( stateType == 0xFF && state == 0xFF )
+	{
+		print("CustomAction_blockHold_capability(usbCode)");
+		return;
+	}
+
+	// Retrieve 8-bit argument
+	uint8_t key = args[0];
+
+	// We only care about normal keys
+	if ( stateType == 0x00 )
+	{
+		// Block given key if we're in the "Press" or "Hold" state
+		if ( ( state == 0x01 || state == 0x02 )
+			&& CustomAction_blockHold_storage == 0 )
+		{
+			CustomAction_blockHold_storage = key;
+			info_msg("Blocking Key: ");
+			printHex( key );
+			print( NL );
+		}
+		// Release if in the "Off" or "Release" state and we're blocking
+		else if ( ( state == 0x00 || state == 0x03 )
+			&& key == CustomAction_blockHold_storage )
+		{
+			info_msg("Unblocking Key: ");
+			printHex( CustomAction_blockHold_storage );
+			print( NL );
+			CustomAction_blockHold_storage = 0;
+		}
+	}
+}
+
+void CustomAction_blockKey_capability( uint8_t state, uint8_t stateType, uint8_t *args )
+{
+	// Display capability name
+	if ( stateType == 0xFF && state == 0xFF )
+	{
+		print("CustomAction_blockKey_capability(usbCode)");
+		return;
+	}
+
+	// Retrieve 8-bit argument
+	uint8_t key = args[0];
+
+	// If key is not blocked, process
+	if ( key != CustomAction_blockHold_storage )
+	{
+		extern void Output_usbCodeSend_capability( uint8_t state, uint8_t stateType, uint8_t *args );
+		Output_usbCodeSend_capability( state, stateType, &key );
+	}
+}
+
+
+
+// ----- CLI Command Functions -----
+
+// XXX Just an example command showing how to parse arguments (more complex than generally needed)
+void cliFunc_echo( char* args )
+{
+	char* curArgs;
+	char* arg1Ptr;
+	char* arg2Ptr = args;
+
+	// Parse args until a \0 is found
+	while ( 1 )
+	{
+		print( NL ); // No \r\n by default after the command is entered
+
+		curArgs = arg2Ptr; // Use the previous 2nd arg pointer to separate the next arg from the list
+		CLI_argumentIsolation( curArgs, &arg1Ptr, &arg2Ptr );
+
+		// Stop processing args if no more are found
+		if ( *arg1Ptr == '\0' )
+			break;
+
+		// Print out the arg
+		dPrint( arg1Ptr );
+	}
+}
+