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adapter.c
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adapter.c
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/*
* Copyright (C) 2014-2020 Catalin Toda <catalinii@yahoo.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <fcntl.h>
#include <poll.h>
#include <linux/ioctl.h>
#include "socketworks.h"
#include "dvb.h"
#include "adapter.h"
#include "dvbapi.h"
#include "utils.h"
#include "tables.h"
#ifndef DISABLE_SATIPCLIENT
#include "satipc.h"
#endif
adapter *a[MAX_ADAPTERS];
SMutex a_mutex;
extern struct struct_opts opts;
int tuner_s2, tuner_t, tuner_c, tuner_t2, tuner_c2;
extern void find_dvb_adapter(adapter **a);
void find_adapters()
{
static int init_find_adapter;
if (init_find_adapter == 1)
return;
init_find_adapter = 1;
find_dvb_adapter(a);
#ifndef DISABLE_SATIPCLIENT
find_satip_adapter(a);
#endif
}
// avoid adapter close unless all the adapters can be closed
int adapter_timeout(sockets *s)
{
int do_close = 1, i, max_close = 0;
int rtime = getTick();
adapter *ad = get_adapter(s->sid);
if (!ad)
return 1;
if (ad->force_close)
return 1;
if (get_streams_for_adapter(ad->id) > 0)
{
ad->rtime = getTick();
s->rtime = ad->rtime;
LOG("Keeping the adapter %d open as there are active streams", ad->id);
return 0;
}
for (i = 0; i < MAX_ADAPTERS; i++)
if ((ad = get_adapter_nw(i)))
{
if (rtime - ad->rtime < s->close_sec)
do_close = 0;
if (ad && max_close < ad->rtime)
max_close = ad->rtime;
}
LOG("Requested adapter %d close due to timeout, result %d max_rtime %d",
s->sid, do_close, max_close);
if (!do_close)
s->rtime = max_close;
return do_close;
}
void request_adapter_close(adapter *ad)
{
ad->force_close = 1;
sockets_timeout(ad->sock, 1);
}
int close_adapter_for_socket(sockets * s)
{
int aid = s->sid;
LOG("closing DVR socket %d pos %d aid %d", s->sock, s->id, aid);
if (aid >= 0)
close_adapter(aid);
return 0;
}
int init_complete = 0;
int num_adapters = 0;
int init_hw(int i)
{
char name[100];
adapter *ad;
if (i < 0 || i >= MAX_ADAPTERS)
return 1;
if (a[i] && a[i]->enabled)
return 1;
if (!a[i])
return 1;
ad = a[i];
mutex_init(&ad->mutex);
mutex_lock(&ad->mutex);
if (ad->force_disable)
goto NOK;
if (ad->enabled)
goto NOK;
ad->sock = -1;
ad->id = i;
ad->fe_sock = -1;
ad->sock = -1;
if (ad->enabled)
{
goto NOK;
}
if (ad->open(ad))
{
init_complete = 0;
goto NOK;
}
ad->enabled = 1;
if (!ad->buf)
ad->buf = malloc1(opts.adapter_buffer + 10);
if (!ad->buf)
{
LOG(
"memory allocation failed for %d bytes failed, adapter %d, trying %d bytes",
opts.adapter_buffer, i, ADAPTER_BUFFER);
opts.adapter_buffer = ADAPTER_BUFFER;
ad->buf = malloc1(opts.adapter_buffer + 10);
if (!ad->buf)
{
LOG("memory allocation failed for %d bytes failed, adapter %d",
opts.adapter_buffer, i);
close_adapter(i);
}
goto NOK;
}
memset(ad->buf, 0, opts.adapter_buffer + 1);
init_dvb_parameters(&ad->tp);
mark_pids_deleted(i, -1, NULL);
update_pids(i);
ad->delsys(i, ad->fe, ad->sys);
ad->master_sid = -1;
ad->sid_cnt = 0;
ad->pid_err = ad->dec_err = 0;
ad->new_gs = 0;
ad->force_close = 0;
ad->ca_mask = 0;
ad->rtime = getTick();
ad->sock = sockets_add(ad->dvr, NULL, i, TYPE_DVR, (socket_action) read_dmx,
(socket_action) close_adapter_for_socket,
(socket_action) adapter_timeout);
memset(ad->buf, 0, opts.adapter_buffer + 1);
set_socket_buffer(ad->sock, (unsigned char*) ad->buf, opts.adapter_buffer);
sockets_timeout(ad->sock, ADAPTER_TIMEOUT);
snprintf(ad->name, sizeof(ad->name), "AD%d", i);
set_socket_thread(ad->sock, start_new_thread(ad->name));
tables_init_device(ad);
if (ad->post_init)
ad->post_init(ad);
// set_sock_lock(ad->sock, &ad->mutex); // locks automatically the adapter on reading from the DVR
LOG("done opening adapter %i fe_sys %d %d %d %d", i, ad->sys[0], ad->sys[1],
ad->sys[2], ad->sys[3]);
OK:
mutex_unlock(&ad->mutex);
return 0;
NOK:
mutex_unlock(&ad->mutex);
return 1;
}
int init_all_hw()
{
int i;
char name[50];
LOG("starting init_all_hw %d", init_complete);
if (init_complete)
return num_adapters;
mutex_init(&a_mutex);
mutex_lock(&a_mutex);
find_adapters();
num_adapters = 0;
init_complete = 1;
for (i = 0; i < MAX_ADAPTERS; i++)
if (!a[i]
|| ((!a[i]->enabled || a[i]->fe <= 0)
&& ((a[i]->pa >= 0 && a[i]->fn >= 0) || a[i]->sip)))
{
if (!init_hw(i))
num_adapters++;
}
else if (a[i]->enabled)
num_adapters++;
if (num_adapters == 0)
init_complete = 0;
LOG("done init_hw %d", init_complete);
if (init_complete)
getAdaptersCount();
mutex_unlock(&a_mutex);
return num_adapters;
}
void close_adapter(int na)
{
adapter *ad;
init_complete = 0;
ad = get_adapter_nw(na);
if (!ad)
return;
mutex_lock(&ad->mutex);
if (!ad->enabled)
{
mutex_unlock(&ad->mutex);
return;
}
LOG("closing adapter %d -> fe:%d dvr:%d", na, ad->fe, ad->dvr);
ad->enabled = 0;
if (ad->close)
ad->close(ad);
//close all streams attached to this adapter
// close_streams_for_adapter (na, -1);
mark_pids_deleted(na, -1, NULL);
update_pids(na);
// if(ad->dmx>0)close(ad->dmx);
if (ad->fe > 0)
close(ad->fe);
if (ad->sock > 0)
sockets_del(ad->sock);
if (ad->ca_mask > 0)
tables_close_device(ad);
ad->ca_mask = 0;
ad->fe = 0;
ad->dvr = 0;
ad->strength = 0;
ad->snr = 0;
mutex_unlock(&ad->mutex);
mutex_destroy(&ad->mutex);
// if(a[na]->buf)free1(a[na]->buf);a[na]->buf=NULL;
LOG("done closing adapter %d", na);
}
int getAdaptersCount()
{
int i;
adapter *ad;
tuner_s2 = tuner_c2 = tuner_t2 = tuner_c = tuner_t = 0;
if (opts.force_sadapter)
tuner_s2 = opts.force_sadapter;
if (opts.force_tadapter)
tuner_t = opts.force_tadapter;
if (opts.force_cadapter)
tuner_c = opts.force_cadapter;
for (i = 0; i < MAX_ADAPTERS; i++)
if ((ad = get_adapter_nw(i)))
{
if (!opts.force_sadapter
&& (delsys_match(ad, SYS_DVBS)
|| delsys_match(ad, SYS_DVBS2)))
tuner_s2++;
if (!opts.force_tadapter && delsys_match(ad, SYS_DVBT)
&& !delsys_match(ad, SYS_DVBT2))
tuner_t++;
if (!opts.force_cadapter && delsys_match(ad, SYS_DVBC_ANNEX_A)
&& !delsys_match(ad, SYS_DVBC2))
tuner_c++;
if (delsys_match(ad, SYS_DVBT2))
tuner_t2++;
if (delsys_match(ad, SYS_DVBC2))
tuner_c2++;
}
return tuner_s2 + tuner_c2 + tuner_t2 + tuner_c + tuner_t;
}
void dump_adapters()
{
int i;
adapter *ad;
if (!opts.log)
return;
LOG("Dumping adapters:");
for (i = 0; i < MAX_ADAPTERS; i++)
if ((ad = get_adapter_nw(i)))
LOG("%d|f: %d sid_cnt:%d master_sid:%d del_sys: %s %s %s", i,
ad->tp.freq, ad->sid_cnt, ad->master_sid,
get_delsys(ad->sys[0]), get_delsys(ad->sys[1]),
get_delsys(ad->sys[2]));
dump_streams();
}
void dump_pids(int aid)
{
int i, dp = 1;
if (!opts.log)
return;
adapter *p = get_adapter(aid);
if (!p)
return;
for (i = 0; i < MAX_PIDS; i++)
if (p->pids[i].flags > 0)
{
if (dp)
LOGL(2, "Dumping pids table for adapter %d, pid errors %d", aid,
p->pid_err - p->dec_err);
dp = 0;
LOGL(2,
"pid %d, fd %d, type %d packets %d, d/c errs %d/%d, flags %d, key %d, sids: %d %d %d %d %d %d %d %d",
p->pids[i].pid, p->pids[i].fd, p->pids[i].type,
p->pids[i].cnt, p->pids[i].dec_err, p->pids[i].err,
p->pids[i].flags, p->pids[i].key, p->pids[i].sid[0],
p->pids[i].sid[1], p->pids[i].sid[2], p->pids[i].sid[3],
p->pids[i].sid[4], p->pids[i].sid[5], p->pids[i].sid[6],
p->pids[i].sid[7]);
}
}
int get_free_adapter(int freq, int pol, int msys, int src)
{
int i;
adapter *ad;
init_all_hw();
i = (src > 0) ? src - 1 : 0;
ad = get_adapter(i);
if (ad)
LOG("get free adapter %d - a[%d] => e:%d m:%d sid_cnt:%d f:%d pol=%d",
src - 1, i, ad->enabled, ad->master_sid, ad->sid_cnt,
ad->tp.freq, ad->tp.pol)
else
LOG("get free adapter %d msys %s", i, get_delsys(i));
if (src > 0)
{
if (ad)
{
if (ad->sid_cnt == 0 && delsys_match(ad, msys))
return i;
if (ad->tp.freq == freq && delsys_match(ad, msys))
return i;
}
}
for (i = 0; i < MAX_ADAPTERS; i++)
//first free adapter that has the same msys
if ((ad = get_adapter_nw(i)) && ad->sid_cnt == 0
&& delsys_match(ad, msys))
return i;
for (i = 0; i < MAX_ADAPTERS; i++)
if ((ad = get_adapter_nw(i)) && a[i]->tp.freq == freq
&& delsys_match(ad, msys))
{
if ((msys == SYS_DVBS2 || msys == SYS_DVBS) && ad->tp.pol == pol)
return i;
else
return i;
}
LOG("no adapter found for f:%d pol:%d msys:%d", freq, pol, msys);
dump_adapters();
return -1;
}
int set_adapter_for_stream(int sid, int aid)
{
adapter *ad;
if (!(ad = get_adapter(aid)))
return -1;
mutex_lock(&ad->mutex);
if (ad->master_sid == -1)
ad->master_sid = sid;
ad->sid_cnt++;
LOG("set adapter %d for stream %d m:%d s:%d", aid, sid, ad->master_sid,
ad->sid_cnt);
mutex_unlock(&ad->mutex);
return 0;
}
void close_adapter_for_stream(int sid, int aid)
{
adapter *ad;
if (!(ad = get_adapter(aid)))
return;
mutex_lock(&ad->mutex);
if (ad->master_sid == sid)
{
ad->master_sid = -1;
fix_master_sid(aid);
}
if (ad->sid_cnt > 0)
ad->sid_cnt--;
else
mark_pids_deleted(aid, -1, NULL);
LOG("closed adapter %d for stream %d m:%d s:%d", aid, sid, ad->master_sid,
ad->sid_cnt);
// delete the attached PIDs as well
mark_pids_deleted(aid, sid, NULL);
update_pids(aid);
// if (a[aid]->sid_cnt == 0)
// close_adapter (aid);
mutex_unlock(&ad->mutex);
}
int update_pids(int aid)
{
int i, dp = 1;
adapter *ad;
ad = get_adapter(aid);
if (!ad)
return 0;
#ifdef TABLES_H
for (i = 0; i < MAX_PIDS; i++)
if ((ad->pids[i].flags == 3))
tables_pid_del(ad, ad->pids[i].pid);
#endif
for (i = 0; i < MAX_PIDS; i++)
if ((ad->pids[i].flags == 3))
{
if (dp)
dump_pids(aid);
dp = 0;
ad->pids[i].flags = 0;
if (ad->pids[i].fd > 0)
ad->del_filters(ad->pids[i].fd, ad->pids[i].pid);
ad->pids[i].fd = 0;
ad->pids[i].type = 0;
ad->pids[i].filter = ad->pids[i].key = 255;
ad->pids[i].csid = 0;
ad->pids[i].version = -1;
ad->pids[i].enabled_channels = 0;
}
for (i = 0; i < MAX_PIDS; i++)
if (ad->pids[i].flags == 2)
{
if (dp)
dump_pids(aid);
dp = 0;
if (ad->pids[i].fd <= 0)
if ((ad->pids[i].fd = ad->set_pid(ad, ad->pids[i].pid)) < 0)
{
request_adapter_close(ad);
return 1; // error
}
ad->pids[i].flags = 1;
if (ad->pids[i].pid == 0)
ad->pat_processed = 0;
ad->pids[i].cnt = 0;
ad->pids[i].cc = 255;
ad->pids[i].err = 0;
ad->pids[i].dec_err = 0;
ad->pids[i].version = -1;
ad->pids[i].csid = -1;
}
ad->commit(ad);
return 0;
}
int tune(int aid, int sid)
{
adapter *ad = get_adapter(aid);
int rv = 0;
SPid *p;
if (!ad)
return -400;
mutex_lock(&ad->mutex);
ad->last_sort = getTick();
if (sid == ad->master_sid && ad->do_tune)
{
ad->tp.switch_type = ad->switch_type;
ad->tp.uslot = ad->uslot;
ad->tp.ufreq = ad->ufreq;
ad->tp.pin = ad->pin;
ad->tp.committed_no = ad->committed_no;
ad->tp.uncommitted_no = ad->uncommitted_no;
rv = ad->tune(ad->id, &ad->tp);
ad->status = 0;
ad->status_cnt = 0;
set_socket_pos(ad->sock, 0); // flush the existing buffer
ad->rlen = 0;
if (ad->sid_cnt > 1) // the master changed the frequency
{
close_streams_for_adapter(aid, sid);
if (update_pids(aid))
{
mutex_unlock(&ad->mutex);
return -503;
}
}
#ifdef TABLES_H
p = find_pid(aid, 0);
if (!p || p->flags == 3) // add pid 0 if not explicitly added
{
LOG(
"Adding pid 0 to the list of pids as not explicitly added for adapter %d",
aid);
mark_pid_add(-1, aid, 0);
}
#endif
}
else
LOG("not tuning for SID %d (do_tune=%d, master_sid=%d)", sid,
ad->do_tune, ad->master_sid);
if (rv < 0)
mark_pids_deleted(aid, sid, NULL);
if (update_pids(aid))
{
mutex_unlock(&ad->mutex);
return -503;
}
mutex_unlock(&ad->mutex);
return rv;
}
SPid *find_pid(int aid, int p)
{
int i;
adapter *ad = get_adapter(aid);
if (!ad)
return NULL;
for (i = 0; i < MAX_PIDS; i++)
if ((ad->pids[i].flags > 0) && (ad->pids[i].pid == p))
return &ad->pids[i];
return NULL;
}
void mark_pid_deleted(int aid, int sid, int _pid, SPid *p)
{
int j;
int cnt = 0, sort = 0;
if (!p)
p = find_pid(aid, _pid);
if (!p)
return;
if (sid == -1) // delete all sids and the pid
{
if (p->flags != 0)
p->flags = 3;
for (j = 0; j < MAX_STREAMS_PER_PID; j++)
if (sid == -1) // delete all pids if sid = -1
p->sid[j] = -1;
return;
}
// sid != -1
for (j = 0; j < MAX_STREAMS_PER_PID; j++)
if (p->sid[j] == sid) // delete all pids where .sid == sid
{
p->sid[j] = -1;
if ((j + 1 < MAX_PIDS) && (p->sid[j + 1] >= 0))
sort = 1;
}
for (j = 0; j < MAX_STREAMS_PER_PID; j++)
if (p->sid[j] >= 0)
cnt++;
// if ((cnt == 0) && (p->flags != 0) && (p->type == 0 || didit))
if ((cnt == 0) && (p->flags != 0) && (p->type == 0))
p->flags = 3;
if (sort)
{
for (j = 0; j < MAX_STREAMS_PER_PID - 1; j++)
if (p->sid[j + 1] > p->sid[j])
{
unsigned char t = p->sid[j];
p->sid[j] = p->sid[j + 1];
p->sid[j + 1] = t;
}
}
}
void mark_pids_deleted(int aid, int sid, char *pids) //pids==NULL -> delete all pids
{
int i, la, pid;
adapter *ad;
char *arg[MAX_PIDS];
ad = get_adapter(aid);
if (!ad)
return;
LOG("deleting pids on adapter %d, sid %d, pids=%s", aid, sid,
pids ? pids : "NULL");
if (pids)
{
la = split(arg, pids, MAX_PIDS, ',');
for (i = 0; i < la; i++)
{
pid = map_int(arg[i], NULL);
mark_pid_deleted(aid, sid, pid, NULL);
}
return;
}
for (i = 0; i < MAX_PIDS; i++)
mark_pid_deleted(aid, sid, ad->pids[i].pid, &ad->pids[i]);
// if(sid == -1)
// reset_pids_type(aid);
dump_pids(aid);
}
int mark_pid_add(int sid, int aid, int _pid)
{
adapter *ad;
int k, i;
ad = get_adapter(aid);
int found = 0;
SPid *p;
if (!ad)
return 1;
// check if the pid already exists, if yes add the sid
if ((p = find_pid(aid, _pid)))
{
LOG("found already existing pid %d flags %d", _pid, p->flags);
for (k = 0; k < MAX_STREAMS_PER_PID; k++)
if (p->sid[k] == -1 || p->sid[k] == sid)
{
if (p->flags == 3)
p->flags = 2;
p->sid[k] = sid;
found = 1;
break;
}
if (!found)
{
LOG("too many streams for PID %d adapter %d", _pid, aid);
return -1;
}
#ifdef TABLES_H
tables_pid_add(ad, _pid, 1);
#endif
return 0;
}
// add the new pid in a new position
for (i = 0; i < MAX_PIDS; i++)
if (ad->pids[i].flags <= 0)
{
ad->pids[i].flags = 2;
ad->pids[i].pid = _pid;
ad->pids[i].sid[0] = sid;
ad->pids[i].filter = ad->pids[i].key = ad->pids[i].ecm_parity = 255;
#ifdef TABLES_H
tables_pid_add(ad, _pid, 0);
#endif
return 0;
}
LOG("MAX_PIDS (%d) reached for adapter %d in adding PID: %d", MAX_PIDS, aid,
_pid);
dump_pids(aid);
dump_adapters();
return -1;
}
int mark_pids_add(int sid, int aid, char *pids)
{
int i, la;
adapter *ad;
char *arg[MAX_PIDS + 2];
int pid;
ad = get_adapter(aid);
if (!ad)
return -1;
if (!pids)
return -1;
LOG("adding pids to adapter %d, sid %d, pids=%s", aid, sid,
pids ? pids : "NULL");
la = split(arg, pids, MAX_PIDS, ',');
for (i = 0; i < la; i++)
{
pid = map_intd(arg[i], NULL, -1);
if (pid == -1)
continue;
if (mark_pid_add(sid, aid, pid) < 0)
return -1;
}
dump_pids(aid);
return 0;
}
int set_adapter_parameters(int aid, int sid, transponder * tp)
{
adapter *ad = get_adapter(aid);
if (!ad)
return -1;
LOG("setting DVB parameters for adapter %d - master_sid %d sid %d old f:%d",
aid, ad->master_sid, sid, ad->tp.freq);
mutex_lock(&ad->mutex);
if (ad->master_sid == -1)
ad->master_sid = sid; // master sid was closed
ad->do_tune = 0;
if (tp->freq != ad->tp.freq || tp->plp != ad->tp.plp
|| tp->diseqc != ad->tp.diseqc
|| (tp->pol > 0 && tp->pol != ad->tp.pol)
|| (tp->sr > 1000 && tp->sr != ad->tp.sr)
|| (tp->mtype > 0 && tp->mtype != ad->tp.mtype))
{
if (sid != ad->master_sid) // slave sid requesting to tune to a different frequency
{
mutex_unlock(&ad->mutex);
LOG(
"secondary stream requested tune, not gonna happen\n ad: f:%d sr:%d pol:%d plp:%d src:%d mod %d\n \
new: f:%d sr:%d pol:%d plp:%d src:%d mod %d",
ad->tp.freq, ad->tp.sr, ad->tp.pol, ad->tp.plp,
ad->tp.diseqc, ad->tp.mtype, tp->freq, tp->sr, tp->pol,
tp->plp, tp->diseqc, tp->mtype);
return -1;
}
mark_pids_deleted(aid, -1, NULL);
if (update_pids(aid))
{
mutex_unlock(&ad->mutex);
return -1;
}
ad->do_tune = 1;
}
copy_dvb_parameters(tp, &ad->tp);
if (ad->tp.pids) // pids can be specified in SETUP and then followed by a delpids in PLAY, make sure the behaviour is right
{
mark_pids_deleted(aid, sid, NULL); // delete all the pids for this
if (mark_pids_add(sid, aid, ad->tp.pids) < 0)
{
mutex_unlock(&ad->mutex);
return -1;
}
}
if (ad->tp.dpids)
{
mark_pids_deleted(aid, sid, ad->tp.dpids);
}
if (ad->tp.apids)
{
if (mark_pids_add(sid, aid, ad->tp.apids ? ad->tp.apids : ad->tp.pids)
< 0)
{
mutex_unlock(&ad->mutex);
return -1;
}
}
if (ad->tp.x_pmt)
{
char *arg[64];
int i, la;
la = split(arg, ad->tp.x_pmt, 64, ',');
for (i = 0; i < la; i++)
{
int pmt = map_int(arg[i], NULL);
if (pmt <= 0)
continue;
SPid *cp = find_pid(ad->id, pmt);
if (!cp)
mark_pid_add(-1, aid, pmt);
cp = find_pid(ad->id, pmt);
if (!cp)
continue;
cp->type |= TYPE_PMT;
}
}
if (0 && (ad->tp.apids || ad->tp.pids || ad->tp.dpids))
dump_pids(aid);
mutex_unlock(&ad->mutex);
return 0;
}
adapter *
get_adapter1(int aid, char *file, int line)
{
if (aid < 0 || aid >= MAX_ADAPTERS || !a[aid] || !a[aid]->enabled)
{
LOG("%s:%d: get_adapter returns NULL for adapter_id %d", file, line,
aid);
return NULL;
}
return a[aid];
}
char* get_stream_pids(int s_id, char *dest, int max_size);
char *
describe_adapter(int sid, int aid, char *dad, int ld)
{
int i = 0, ts, j, use_ad, len;
transponder *t;
adapter *ad;
streams *ss;
int status = 1, strength = 255, snr = 15;
ss = get_sid(sid);
use_ad = 1;
if (!(ad = get_adapter(aid)) || (ss && !ss->do_play))
{
if (aid < 0)
aid = 0;
if (!ss)
return "";
t = &ss->tp;
use_ad = 0;
}
else
t = &ad->tp;
memset(dad, 0, sizeof(dad));
// do just max 3 signal check 1s after tune
if (use_ad && (!ad->sip)
&& ((ad->status <= 0 && ad->status_cnt < 8 && ad->status_cnt++ > 4)
|| opts.force_scan))
{
int new_gs = 1;
ts = getTick();
if (ad->new_gs == 0
&& (new_gs = get_signal_new(ad->fe, &ad->status, &ad->ber,
&ad->strength, &ad->snr)))
get_signal(ad->fe, &ad->status, &ad->ber, &ad->strength, &ad->snr);
else if (new_gs)
get_signal(ad->fe, &ad->status, &ad->ber, &ad->strength, &ad->snr);
if (ad->status > 0 && new_gs != 0) // we have signal but no new stats, don't try to get them from now on until adapter close
ad->new_gs = 1;
if (ad->max_strength <= ad->strength)
ad->max_strength = (ad->strength > 0) ? ad->strength : 1;
if (ad->max_snr <= ad->snr)
ad->max_snr = (ad->snr > 0) ? ad->snr : 1;
LOG(
"get_signal%s took %d ms for adapter %d handle %d (status: %d, ber: %d, strength:%d, snr: %d, max_strength: %d, max_snr: %d %d)",
new_gs ? "" : "_new", getTick() - ts, aid, ad->fe, ad->status,
ad->ber, ad->strength, ad->snr, ad->max_strength, ad->max_snr,
opts.force_scan);
if (ad->snr > 4096)
new_gs = 0;
if (new_gs)
{
ad->strength = ad->strength * 255.0 / ad->max_strength;
ad->snr = ad->snr * 255.0 / ad->max_snr;
}
else
{
ad->strength = ad->strength >> 8;
ad->snr = ad->snr >> 8;
}
}
if (use_ad)
{
strength = ad->strength;
snr = ad->snr >> 4;
status = (ad->status & FE_HAS_LOCK) > 0;
}
if (t->sys == 0)
len = snprintf(dad, ld, "ver=1.0;src=1;tuner=%d,0,0,0,0,,,,,,,;pids=",
aid + 1);
else if (t->sys == SYS_DVBS || t->sys == SYS_DVBS2)
len =
snprintf(dad, ld,
"ver=1.0;src=%d;tuner=%d,%d,%d,%d,%d,%s,%s,%s,%s,%s,%d,%s;pids=",
t->diseqc, aid + 1, strength, status, snr,
t->freq / 1000, get_pol(t->pol),
get_modulation(t->mtype), get_pilot(t->plts),
get_rolloff(t->ro), get_delsys(t->sys), t->sr / 1000,
get_fec(t->fec));
else if (t->sys == SYS_DVBT || t->sys == SYS_DVBT2)
len =
snprintf(dad, ld,
"ver=1.1;src=%d;tuner=%d,%d,%d,%d,%.2f,%d,%s,%s,%s,%s,%s,%d,%d,%d;pids=",
t->diseqc, aid + 1, strength, status, snr,
(double) t->freq / 1000, t->bw, get_delsys(t->sys),
get_tmode(t->tmode), get_modulation(t->mtype),
get_gi(t->gi), get_fec(t->fec), t->plp, t->t2id, t->sm);
else
len =
snprintf(dad, ld,
"ver=1.2;src=%d;tuner=%d,%d,%d,%d,%.2f,8,%s,%s,%d,%d,%d,%d,%d;pids=",
t->diseqc, aid + 1, strength, status, snr,
(double) t->freq / 1000, get_delsys(t->sys),
get_modulation(t->mtype), t->sr, t->c2tft, t->ds,
t->plp, t->inversion);
if (use_ad)
len += strlen(get_stream_pids(sid, dad + len, ld - len));
if (!use_ad && (t->apids || t->pids))
len += snprintf(dad + len, ld - len, "%s",
t->pids ? t->pids : t->apids);
LOGL(5, "describe_adapter: sid %d, aid %d => %s", sid, aid, dad);
return dad;
}
// sorting the pid list in order to get faster the pids that are frequestly used
void sort_pids(int aid)
{
int b, i;
SPid pp;
SPid *p;
adapter *ad = get_adapter(aid);
if (!ad)
return;
p = ad->pids;
b = 1;
while (b)
{
b = 0;
for (i = 0; i < MAX_PIDS - 1; i++)
if (p[i].cnt < p[i + 1].cnt)
{
b = 1;
memcpy(&pp, &p[i], sizeof(pp));
memcpy(&p[i], &p[i + 1], sizeof(pp));
memcpy(&p[i + 1], &pp, sizeof(pp));
}
}
}
void free_all_adapters()
{
int i;
for (i = 0; i < MAX_ADAPTERS; i++)
if (a[i]->buf)
free1(a[i]->buf);
}
void set_disable(int i, int v)
{
adapter *ad = get_adapter(i);
if (ad)
ad->force_disable = v;