108 lines
2.5 KiB
C
108 lines
2.5 KiB
C
/* MTP common functions
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*
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* (C) 2020 by Andreas Eversberg <jolly@eversberg.eu>
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* All Rights Reserved
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define CHAN mtp->name
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#include <stdio.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "../libtimer/timer.h"
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#include "../libdebug/debug.h"
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#include "mtp.h"
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static void mtp_t1(struct timer *timer)
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{
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mtp_t *mtp = (mtp_t *)timer->priv;
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mtp_send(mtp, MTP_PRIM_T1_TIMEOUT, 0, NULL, 0);
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}
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static void mtp_t2(struct timer *timer)
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{
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mtp_t *mtp = (mtp_t *)timer->priv;
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mtp_send(mtp, MTP_PRIM_T2_TIMEOUT, 0, NULL, 0);
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}
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static void mtp_t3(struct timer *timer)
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{
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mtp_t *mtp = (mtp_t *)timer->priv;
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mtp_send(mtp, MTP_PRIM_T3_TIMEOUT, 0, NULL, 0);
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}
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static void mtp_t4(struct timer *timer)
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{
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mtp_t *mtp = (mtp_t *)timer->priv;
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mtp_send(mtp, MTP_PRIM_T4_TIMEOUT, 0, NULL, 0);
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}
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int mtp_init(mtp_t *mtp, const char *name, void *inst, void (*mtp_receive)(void *inst, enum mtp_prim prim, uint8_t slc, uint8_t *data, int len), int bitrate, int ignore_monitor, uint8_t sio, uint16_t local_pc, uint16_t remote_pc)
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{
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memset(mtp, 0, sizeof(*mtp));
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mtp->name = name;
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mtp->inst = inst;
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mtp->mtp_receive = mtp_receive;
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if (bitrate != 64000 && bitrate != 4800) {
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fprintf(stderr, "Wrong bit rate %d, please fix!\n", bitrate);
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abort();
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}
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mtp->bitrate = bitrate;
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mtp->ignore_monitor = ignore_monitor;
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mtp->sio = sio;
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mtp->local_pc = local_pc;
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mtp->remote_pc = remote_pc;
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timer_init(&mtp->t1, mtp_t1, mtp);
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timer_init(&mtp->t2, mtp_t2, mtp);
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timer_init(&mtp->t3, mtp_t3, mtp);
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timer_init(&mtp->t4, mtp_t4, mtp);
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return 0;
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}
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void mtp_exit(mtp_t *mtp)
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{
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if (!mtp)
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return;
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timer_exit(&mtp->t1);
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timer_exit(&mtp->t2);
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timer_exit(&mtp->t3);
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timer_exit(&mtp->t4);
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mtp_flush(mtp);
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}
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void mtp_flush(mtp_t *mtp)
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{
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struct mtp_msg *temp;
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while (mtp->tx_queue) {
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temp = mtp->tx_queue;
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mtp->tx_queue = mtp->tx_queue->next;
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free(temp);
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}
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}
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