/**
 *
 * \section COPYRIGHT
 *
 * Copyright 2013-2014 The libLTE Developers. See the
 * COPYRIGHT file at the top-level directory of this distribution.
 *
 * \section LICENSE
 *
 * This file is part of the libLTE library.
 *
 * libLTE 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 3 of
 * the License, or (at your option) any later version.
 *
 * libLTE 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.
 *
 * A copy of the GNU Lesser General Public License can be found in
 * the LICENSE file in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/.
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>

#include "lte.h"

void usage(char *prog) {
	printf("Usage: %s nof_prb length_bits Word0 Word1 ...\n", prog);
}

int main(int argc, char **argv) {
	dci_msg_t msg;
	ra_pdsch_t ra_dl;
	ra_pdsch_t ra_ul;
	int len, rlen;
	int nof_prb;
	int nwords;
	int i;
	char *y;

	if (argc < 3) {
		usage(argv[0]);
		exit(-1);
	}

	nof_prb = atoi(argv[1]);
	len = atoi(argv[2]);

	nwords = (len-1)/32+1;

	if (argc < 3 + nwords) {
		usage(argv[0]);
		exit(-1);
	}

	y = msg.data;
	rlen = 0;
	unsigned int x;
	for (i=0;i<nwords;i++) {
		x = strtoul(argv[i+3],NULL,16);
		if (len-rlen < 32) {
			bit_pack(x, &y, len - rlen);
		} else {
			bit_pack(x, &y, 32);
		}

	}

	printf("DCI message len %d:\n",len);
	for (i=0;i<len;i++) {
		printf("%d, ", msg.data[i]);
	}
	printf("\n");

	dci_msg_type_t dci_type;
	msg.location.rnti = SIRNTI;
	msg.location.nof_bits = len;
	if (dci_msg_get_type(&msg, &dci_type, nof_prb, 1234)) {
		fprintf(stderr, "Can't obtain DCI message type\n");
		exit(-1);
	}
	printf("\n");
	printf("Message type:");
	dci_msg_type_fprint(stdout, dci_type);
	switch(dci_type.type) {
	case PDSCH_SCHED:
		bzero(&ra_dl, sizeof(ra_pdsch_t));
		dci_msg_unpack_pdsch(&msg, &ra_dl, nof_prb, false);
		ra_pdsch_fprint(stdout, &ra_dl, nof_prb);
		break;
	default:
		printf("Error expected PDSCH\n");
		exit(-1);
	}
	printf("\n");
}