start with USB CDC echo example

this is the Atmel START USB CDC Echo example project for the
SAM E54 Xplained Pro board using an Atmel ATSAME54P20A
microcontroller.
Atmel START information:
- Version: 1.4.1810 (Dec 18, 2018, 5:52 AM GMT+1)
- Server: 1.4.93
- Content version: 1.0.1340

This will serve as basis for the sysmoOCTSIM project

A jenkins contrib script has also been added to the
osmo-ccid-firmware project to build the sysmoOCTSIM firmware

Change-Id: I356de75e7b730d63fb819248e71d36f785932199
diff --git a/sysmoOCTSIM/usb/class/cdc/device/cdcdf_acm.h b/sysmoOCTSIM/usb/class/cdc/device/cdcdf_acm.h
new file mode 100644
index 0000000..ad060bc
--- /dev/null
+++ b/sysmoOCTSIM/usb/class/cdc/device/cdcdf_acm.h
@@ -0,0 +1,108 @@
+/**
+ * \file
+ *
+ * \brief USB Device Stack CDC ACM Function Definition.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ */
+
+#ifndef USBDF_CDC_ACM_SER_H_
+#define USBDF_CDC_ACM_SER_H_
+
+#include "usbdc.h"
+#include "usb_protocol_cdc.h"
+
+/** CDC ACM Class Callback Type */
+enum cdcdf_acm_cb_type { CDCDF_ACM_CB_READ, CDCDF_ACM_CB_WRITE, CDCDF_ACM_CB_LINE_CODING_C, CDCDF_ACM_CB_STATE_C };
+
+/** CDC ACM Notify Line State Callback. */
+typedef void (*cdcdf_acm_notify_state_t)(uint16_t);
+
+/** CDC ACM Set Line Coding Callback. */
+typedef bool (*cdcdf_acm_set_line_coding_t)(struct usb_cdc_line_coding *);
+
+/**
+ * \brief Initialize the USB CDC ACM Function Driver
+ * \return Operation status.
+ */
+int32_t cdcdf_acm_init(void);
+
+/**
+ * \brief Deinitialize the USB CDC ACM Function Driver
+ * \return Operation status.
+ */
+void cdcdf_acm_deinit(void);
+
+/**
+ * \brief USB CDC ACM Function Read Data
+ * \param[in] buf Pointer to the buffer which receives data
+ * \param[in] size the size of data to be received
+ * \return Operation status.
+ */
+int32_t cdcdf_acm_read(uint8_t *buf, uint32_t size);
+
+/**
+ * \brief USB CDC ACM Function Write Data
+ * \param[in] buf Pointer to the buffer which stores data
+ * \param[in] size the size of data to be sent
+ * \return Operation status.
+ */
+int32_t cdcdf_acm_write(uint8_t *buf, uint32_t size);
+
+/**
+ * \brief USB CDC ACM Stop the currnet data transfer
+ */
+void cdcdf_acm_stop_xfer(void);
+
+/**
+ * \brief USB CDC ACM Function Register Callback
+ * \param[in] cb_type Callback type of CDC ACM Function
+ * \param[in] func Pointer to callback function
+ * \return Operation status.
+ */
+int32_t cdcdf_acm_register_callback(enum cdcdf_acm_cb_type cb_type, FUNC_PTR func);
+
+/**
+ * \brief Check whether CDC ACM Function is enabled
+ * \return Operation status.
+ * \return true CDC ACM Function is enabled
+ * \return false CDC ACM Function is disabled
+ */
+bool cdcdf_acm_is_enabled(void);
+
+/**
+ * \brief Return the CDC ACM line coding structure start address
+ * \return Pointer to USB CDC ACM line coding data.
+ */
+const struct usb_cdc_line_coding *cdcdf_acm_get_line_coding(void);
+
+/**
+ * \brief Return version
+ */
+uint32_t cdcdf_acm_get_version(void);
+
+#endif /* USBDF_CDC_ACM_SER_H_ */