// Copyright(c) 2017-2020, Intel Corporation

//

// Redistribution  and  use  in source  and  binary  forms,  with  or  without

// modification, are permitted provided that the following conditions are met:

//

// * Redistributions of  source code  must retain the  above copyright notice,

//   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.

// * Neither the name  of Intel Corporation  nor the names of its contributors

//   may be used to  endorse or promote  products derived  from this  software

//   without specific prior written permission.

//

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,  BUT NOT LIMITED TO,  THE

// IMPLIED WARRANTIES OF  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

// ARE DISCLAIMED.  IN NO EVENT  SHALL THE COPYRIGHT OWNER  OR CONTRIBUTORS BE

// LIABLE  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL,  SPECIAL,  EXEMPLARY,  OR

// CONSEQUENTIAL  DAMAGES  (INCLUDING,  BUT  NOT LIMITED  TO,  PROCUREMENT  OF

// SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE,  DATA, OR PROFITS;  OR BUSINESS

// INTERRUPTION)  HOWEVER CAUSED  AND ON ANY THEORY  OF LIABILITY,  WHETHER IN

// CONTRACT,  STRICT LIABILITY,  OR TORT  (INCLUDING NEGLIGENCE  OR OTHERWISE)

// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,  EVEN IF ADVISED OF THE

// POSSIBILITY OF SUCH DAMAGE.

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif // HAVE_CONFIG_H

#include "opae/access.h"

#include "opae/utils.h"

#include "opae/umsg.h"

#include "common_int.h"

#include "intel-fpga.h"

#include "usrclk/user_clk_pgm_uclock.h"

fpga_result __XFPGA_API__ xfpga_fpgaSetUserClock(fpga_handle handle,

						uint64_t high_clk,

						uint64_t low_clk,

						int flags)

{

	struct _fpga_handle  *_handle = (struct _fpga_handle *)handle;

	fpga_result result            = FPGA_OK;

	int err                       = 0;

	struct _fpga_token  *_token;

	char *p                       = 0;

	UNUSED_PARAM(flags);

	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;

	}

	_token = (struct _fpga_token *)_handle->token;

	if (_token == NULL) {

		OPAE_ERR("Token not found");

		result = FPGA_INVALID_PARAM;

		goto out_unlock;

	}

	p = strstr(_token->sysfspath, FPGA_SYSFS_AFU);

	if (NULL == p) {

		OPAE_ERR("Invalid sysfspath in token");

		result = FPGA_INVALID_PARAM;

		goto out_unlock;

	}

	p = strrchr(_token->sysfspath, '.');

	if (NULL == p) {

		OPAE_ERR("Invalid sysfspath in token");

		result = FPGA_INVALID_PARAM;

		goto out_unlock;

	}

	result = set_userclock(_token->sysfspath, high_clk, low_clk);

	if (result != FPGA_OK) {

		OPAE_ERR("Failed to set user clock");

	}

out_unlock:

	err = pthread_mutex_unlock(&_handle->lock);

	if (err)

		OPAE_ERR("pthread_mutex_unlock() failed: %s", strerror(err));

	return result;

}

fpga_result __XFPGA_API__ xfpga_fpgaGetUserClock(fpga_handle handle,

						uint64_t *high_clk,

						uint64_t *low_clk,

						int flags)

{

	struct _fpga_handle  *_handle = (struct _fpga_handle *)handle;

	fpga_result result            = FPGA_OK;

	int err                       = 0;

	struct _fpga_token  *_token;

	char *p                       = 0;

	UNUSED_PARAM(flags);

	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;

	}

	_token = (struct _fpga_token *)_handle->token;

	if (_token == NULL) {

		OPAE_ERR("Token not found");

		result = FPGA_INVALID_PARAM;

		goto out_unlock;

	}

	p = strstr(_token->sysfspath, FPGA_SYSFS_AFU);

	if (NULL == p) {

		OPAE_ERR("Invalid sysfspath in token");

		result = FPGA_INVALID_PARAM;

		goto out_unlock;

	}

	p = strrchr(_token->sysfspath, '.');

	if (NULL == p) {

		OPAE_ERR("Invalid sysfspath in token");

		result = FPGA_INVALID_PARAM;

		goto out_unlock;

	}

	result = get_userclock(_token->sysfspath, high_clk, low_clk);

	if (result != FPGA_OK) {

		OPAE_ERR("Failed to get user clock");

	}

out_unlock:

	err = pthread_mutex_unlock(&_handle->lock);

	if (err)

		OPAE_ERR("pthread_mutex_unlock() failed: %s", strerror(err));

	return result;

}