Initial support for the ICPad

- Basic support for up to 4 ISSI chips (and partial support for 16 chip configurations)
- Initial USB mux support
  * Required USB re-init procedure
- Initial interconnect mux support
  * Required some state reset commands

Scan/ICPad/scan_loop.c

@@ -0,0 +1,106 @@
+/* Copyright (C) 2014-2015 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 <connect_scan.h>
+#include <led.h>
+#include <led_scan.h>
+#include <print.h>
+#include <matrix_scan.h>
+#include <macro.h>
+#include <output_com.h>
+#include <port_scan.h>
+
+// Local Includes
+#include "scan_loop.h"
+
+
+
+// ----- Function Declarations -----
+
+// ----- Variables -----
+
+// Number of scans since the last USB send
+uint16_t Scan_scanCount = 0;
+
+
+
+// ----- Functions -----
+
+// Setup
+inline void Scan_setup()
+{
+	// Setup Port Swap module
+	Port_setup();
+
+	// Setup UART Connect, if Output_Available, this is the master node
+	Connect_setup( Output_Available );
+
+	// Setup GPIO pins for matrix scanning
+	Matrix_setup();
+
+	// Setup ISSI chip to control the leds
+	LED_setup();
+
+	// Reset scan count
+	Scan_scanCount = 0;
+}
+
+
+// Main Detection Loop
+inline uint8_t Scan_loop()
+{
+	// Port Swap detection
+	Port_scan();
+
+	// Scan Matrix
+	Matrix_scan( Scan_scanCount++ );
+
+	// Process any interconnect commands
+	Connect_scan();
+
+	// Process any LED events
+	LED_scan();
+
+	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;
+}
+