added dualusbio lib and example for it (not fully working yet..)

1 files changed, 129 insertions, 0 deletions

diff --git a/lib/dualusbio.c b/lib/dualusbio.c
new file mode 100644
index 0000000..d774d6a
--- /dev/null
+++ b/lib/dualusbio.c
@@ -0,0 +1,129 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2013-2015 Christian Pointner <equinox@spreadspace.org>
+ *
+ *  This file is part of spreadspace avr utils.
+ *
+ *  spreadspace avr utils is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
+ *
+ *  spreadspace avr utils 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+
+#include "dualusbio.h"
+
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2012.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+#include <LUFA/Drivers/USB/USB.h>
+#include "lufa-descriptor-usbdualserial.h"
+
+USB_ClassInfo_CDC_Device_t VirtualSerial1_CDC_Interface =
+	{
+		.Config =
+			{
+				.ControlInterfaceNumber           = 0,
+
+				.DataINEndpointNumber             = CDC1_TX_EPNUM,
+				.DataINEndpointSize               = CDC_TXRX_EPSIZE,
+				.DataINEndpointDoubleBank         = false,
+
+				.DataOUTEndpointNumber            = CDC1_RX_EPNUM,
+				.DataOUTEndpointSize              = CDC_TXRX_EPSIZE,
+				.DataOUTEndpointDoubleBank        = false,
+
+				.NotificationEndpointNumber       = CDC1_NOTIFICATION_EPNUM,
+				.NotificationEndpointSize         = CDC_NOTIFICATION_EPSIZE,
+				.NotificationEndpointDoubleBank   = false,
+			},
+	};
+
+USB_ClassInfo_CDC_Device_t VirtualSerial2_CDC_Interface =
+	{
+		.Config =
+			{
+				.ControlInterfaceNumber           = 2,
+
+				.DataINEndpointNumber             = CDC2_TX_EPNUM,
+				.DataINEndpointSize               = CDC_TXRX_EPSIZE,
+				.DataINEndpointDoubleBank         = false,
+
+				.DataOUTEndpointNumber            = CDC2_RX_EPNUM,
+				.DataOUTEndpointSize              = CDC_TXRX_EPSIZE,
+				.DataOUTEndpointDoubleBank        = false,
+
+				.NotificationEndpointNumber       = CDC2_NOTIFICATION_EPNUM,
+				.NotificationEndpointSize         = CDC_NOTIFICATION_EPSIZE,
+				.NotificationEndpointDoubleBank   = false,
+			},
+	};
+
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+	CDC_Device_ConfigureEndpoints(&VirtualSerial1_CDC_Interface);
+	CDC_Device_ConfigureEndpoints(&VirtualSerial2_CDC_Interface);
+}
+
+void EVENT_USB_Device_ControlRequest(void)
+{
+	CDC_Device_ProcessControlRequest(&VirtualSerial1_CDC_Interface);
+	CDC_Device_ProcessControlRequest(&VirtualSerial2_CDC_Interface);
+}
+
+FILE usbio_port1;
+FILE usbio_port2;
+
+void dualusbio_init(void)
+{
+  USB_Init();
+  CDC_Device_CreateStream(&VirtualSerial1_CDC_Interface, &usbio_port1);
+  CDC_Device_CreateStream(&VirtualSerial2_CDC_Interface, &usbio_port2);
+}
+
+
+void dualusbio_task(void)
+{
+#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+  if(USB_DeviceState == DEVICE_STATE_Unattached && USB_VBUS_GetStatus()) {
+    USB_Disable();
+    USB_Init();
+  }
+#endif
+
+  CDC_Device_USBTask(&VirtualSerial1_CDC_Interface);
+  CDC_Device_USBTask(&VirtualSerial2_CDC_Interface);
+  USB_USBTask();
+}
+
+void dualusbio_make_stdio(uint8_t port)
+{
+  switch(port) {
+  case 1: stdin = stdout = stderr = &usbio_port1; break;
+  case 2: stdin = stdout = stderr = &usbio_port2; break;
+  }
+}
+
+int16_t dualusbio_bytes_received(uint8_t port)
+{
+  switch(port) {
+  case 1: return CDC_Device_BytesReceived(&VirtualSerial1_CDC_Interface);
+  case 2: return CDC_Device_BytesReceived(&VirtualSerial2_CDC_Interface);
+  }
+  return 0;
+}