add PluggableUSB module

1 files changed, 86 insertions, 0 deletions

diff --git a/cores/arduino/PluggableUSB.cpp b/cores/arduino/PluggableUSB.cpp
new file mode 100644
index 0000000..e389c35
--- /dev/null
+++ b/cores/arduino/PluggableUSB.cpp
@@ -0,0 +1,86 @@
+/*
+  PluggableUSB.cpp
+  Copyright (c) 2015 Arduino LLC
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "USBAPI.h"
+#include "PluggableUSB.h"
+
+#if defined(USBCON)	
+#ifdef PLUGGABLE_USB_ENABLED
+
+#define MAX_MODULES	6
+
+static u8 startIf = CDC_ACM_INTERFACE + CDC_INTERFACE_COUNT;
+static u8 firstEp = CDC_FIRST_ENDPOINT + CDC_ENPOINT_COUNT;
+
+static u8 lastIf = CDC_ACM_INTERFACE + CDC_INTERFACE_COUNT;
+static u8 lastEp = CDC_FIRST_ENDPOINT + CDC_ENPOINT_COUNT;
+
+extern u8 _initEndpoints[];
+
+PUSBCallbacks cbs[MAX_MODULES];
+u8 modules_count = 0;
+
+int PUSB_GetInterface(u8* interfaceNum)
+{
+	int ret = 0;
+	for (u8 i=0; i<modules_count; i++) {
+		ret = cbs[i].getInterface(interfaceNum);
+	}
+	return ret;
+}
+
+int PUSB_GetDescriptor(int t)
+{
+	int ret = 0;
+	for (u8 i=0; i<modules_count && ret == 0; i++) {
+		ret = cbs[i].getDescriptor(t);
+	}
+	return ret;
+}
+
+bool PUSB_Setup(Setup& setup, u8 j)
+{
+	bool ret = false;
+	for (u8 i=0; i<modules_count && ret == false; i++) {
+		ret = cbs[i].setup(setup, j);
+	}
+	return ret;
+}
+
+int PUSB_AddFunction(PUSBCallbacks *cb, u8* interface) 
+{
+	if (modules_count >= MAX_MODULES) {
+		return 0;
+	}
+	cbs[modules_count] = *cb;
+
+	*interface = lastIf;
+	lastIf++;
+	for ( u8 i = 0; i< cb->numEndpoints; i++) {
+		_initEndpoints[lastEp] = cb->endpointType[i];
+		lastEp++;
+	}
+	modules_count++;
+	return lastEp-1;
+	// restart USB layer???
+}
+
+#endif
+
+#endif /* if defined(USBCON) */
\ No newline at end of file