// Copyright(c) 2017-2020, Intel Corporation
//
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// modification, are permitted provided that the following conditions are met:
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//   this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
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#ifdef HAVE_CONFIG_H
#include <config.h>
#endif // HAVE_CONFIG_H

#include "opae/access.h"
#include "opae/utils.h"
#include "opae/manage.h"
#include "common_int.h"
#include "opae_drv.h"

//Assign Port to PF from Interface
#define ASSIGN_PORT_TO_PF           0

//Release Port from PF and Assign to Interface
#define ASSIGN_PORT_TO_HOST         1

//Assign and Release  port to a host interface
fpga_result __XFPGA_API__ xfpga_fpgaAssignPortToInterface(fpga_handle fpga,
						uint32_t interface_num,
						uint32_t slot_num,
						int flags)
{
	struct _fpga_handle *_handle = (struct _fpga_handle *)fpga;
	fpga_result result = FPGA_OK;
	int err;

	result = handle_check_and_lock(_handle);
	if (result)
		return result;

	if (_handle->fddev < 0) {
		OPAE_ERR("Invalid handle file descriptor");
		result = FPGA_INVALID_PARAM;
		goto out_unlock;
	}

	switch (interface_num) {
	case ASSIGN_PORT_TO_PF:
		result = opae_fme_port_assign(_handle->fddev, flags, slot_num);
		if (result) {
			OPAE_ERR("Failed to assign port");
		}
		break;
	case ASSIGN_PORT_TO_HOST:
		result = opae_fme_port_release(_handle->fddev, flags, slot_num);
		if (result) {
			OPAE_ERR("Failed to releae port");
		}
		break;
	default:
		OPAE_MSG("Unknown port assignment operation: %d",
			 interface_num);
		result = FPGA_INVALID_PARAM;
	}


out_unlock:
	err = pthread_mutex_unlock(&_handle->lock);
	if (err)
		OPAE_ERR("pthread_mutex_unlock() failed: %s", strerror(err));
	return result;

}