95 lines
3.4 KiB
C
95 lines
3.4 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#include "low.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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void store_ul(benetel_t *bs, ul_packet_t *ul)
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{
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int a = ul->antenna;
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if (ul->subframe != bs->next_subframe[a] ||
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ul->symbol != bs->next_symbol[a]) {
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printf("%s: fatal, antenna %d expected frame.sf.symbol %d.%d.%d, got %d.%d.%d\n",
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__FUNCTION__,
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a,
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bs->expected_benetel_frame[a], bs->next_subframe[a], bs->next_symbol[a],
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ul->frame, ul->subframe, ul->symbol);
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exit(1);
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}
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lock_ul_buffer(bs->buffers, bs->next_subframe[a]);
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if (bs->buffers->ul_busy[a][bs->next_subframe[a]] & (1 << bs->next_symbol[a])) {
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printf("%s: warning, UL overflow (sf.symbol %d.%d)\n", __FUNCTION__,
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bs->next_subframe[a], bs->next_symbol[a]);
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}
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memcpy(bs->buffers->ul[a][bs->next_subframe[a]] + bs->next_symbol[a] * 1200*4,
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ul->iq, 1200*4);
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bs->buffers->ul_busy[a][bs->next_subframe[a]] |= (1 << bs->next_symbol[a]);
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signal_ul_buffer(bs->buffers, bs->next_subframe[a]);
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unlock_ul_buffer(bs->buffers, bs->next_subframe[a]);
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bs->next_symbol[a]++;
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if (bs->next_symbol[a] == 14) {
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bs->next_symbol[a] = 0;
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bs->next_subframe[a] = (bs->next_subframe[a] + 1) % 10;
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if (bs->next_subframe[a] == 0) {
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bs->expected_benetel_frame[a]++;
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bs->expected_benetel_frame[a] &= 255;
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}
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}
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}
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void store_prach(benetel_t *bs, int frame, int subframe, void *data)
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{
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static int last_frame = -1;
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static int last_subframe = -1;
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/* hack: antenna number is always 0, discard second packet with same f/sf */
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if (frame == last_frame && subframe == last_subframe) return;
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last_frame = frame;
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last_subframe = subframe;
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lock_ul_buffer(bs->buffers, subframe);
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if (bs->buffers->prach_busy[subframe]) {
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printf("store_prach: fatal: previous prach buffer not processed\n");
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unlock_ul_buffer(bs->buffers, subframe);
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return;
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}
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bs->buffers->prach_busy[subframe] = 1;
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memcpy(bs->buffers->prach[subframe], data, 849*4);
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signal_ul_buffer(bs->buffers, subframe);
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unlock_ul_buffer(bs->buffers, subframe);
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}
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void *benetel_start_dpdk(char *ifname, shared_buffers *buffers, char *dpdk_main_command_line);
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void *benetel_start(char *ifname, shared_buffers *buffers, char *dpdk_main_command_line)
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{
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if (!strcmp(ifname, "dpdk"))
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return benetel_start_dpdk(ifname, buffers, dpdk_main_command_line);
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printf("benetel: fatal: interface %s not supported, only dpdpk is supported\n", ifname);
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exit(1);
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}
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