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satip_config.c
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satip_config.c
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/*
* satip: tuning and pid config
*
* Copyright (C) 2014 [email protected]
* DVB-C and DVB-T(2) support added by [email protected]
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include "satip_config.h"
#include "log.h"
/* configuration items present */
#define PC_FREQ 0x00000001
#define PC_POL 0x00000002
#define PC_ROLLOFF 0x00000004
#define PC_MODSYS 0x00000008
#define PC_MODTYPE 0x00000010
#define PC_PILOTS 0x00000020
#define PC_SYMRATE 0x00000040
#define PC_FECINNER 0x00000080
#define PC_POSITION 0x00000100
#define PC_GUARDINT 0x00000200
#define PC_TRANSMODE 0x00000400
#define PC_BANDWIDTH 0x00000800
#define PC_INVERSION 0x00001000
#define PC_PLP 0x00002000
#define PC_T2ID 0x00004000
#define PC_SM 0x00008000
#define PC_COMPLETE_DVBS \
( PC_FREQ | PC_POL | PC_MODSYS | PC_SYMRATE | \
PC_FECINNER | PC_POSITION )
#define PC_COMPLETE_DVBS2 \
( PC_FREQ | PC_POL | PC_ROLLOFF | PC_MODSYS | \
PC_MODTYPE | PC_PILOTS | PC_SYMRATE | \
PC_FECINNER | PC_POSITION )
#define PC_COMPLETE_DVBT \
( PC_FREQ | PC_MODSYS | PC_MODTYPE | PC_FECINNER | \
PC_GUARDINT | PC_TRANSMODE | PC_BANDWIDTH )
#define PC_COMPLETE_DVBT2 \
( PC_FREQ | PC_MODSYS | PC_MODTYPE | PC_FECINNER | \
PC_GUARDINT | PC_TRANSMODE | PC_BANDWIDTH | PC_PLP )
#define PC_COMPLETE_DVBC \
( PC_FREQ | PC_MODSYS | PC_MODTYPE | PC_SYMRATE )
/* PID handling */
#define PID_VALID 0
#define PID_IGNORE 1
#define PID_ADD 2
#define PID_DELETE 3
extern int enabled_workarounds;
/* strings for query strings */
char const strmap_polarization[] = { 'h', 'v', 'l', 'r' };
char* const strmap_fecinner[] = { "12","23","34","56","78","89","35","45","910" };
char* const strmap_rolloff[] = { "0.35","0.25","0.20" };
char* const strmap_modtype[] = { "qpsk", "8psk", "16qam", "32qam", "64qam", "128qam", "256qam"};
char* const strmap_guartinterval[] = {"14", "19256", "18", "19128", "116", "132", "1128"};
char* const strmap_transmode[] = {"1k", "2k", "4k", "8k", "16k", "32k"};
char* const strmap_bandwidth[] = {"5", "6", "7", "8", "10", "1.712"};
t_satip_config* satip_new_config(int frontend, int type)
{
t_satip_config* cfg;
cfg=(t_satip_config*) malloc(sizeof(t_satip_config));
cfg->frontend = frontend;
cfg->fe_type = type;
satip_clear_config(cfg);
return cfg;
}
/*
* PIDs need extra handling to cover "addpids" and "delpids" use cases
*/
static void pidupdate_status(t_satip_config* cfg)
{
int i;
int mod_found=0;
for (i=0; i<SATIPCFG_MAX_PIDS; i++)
if ( cfg->mod_pid[i] == PID_ADD ||
cfg->mod_pid[i] == PID_DELETE )
{
mod_found=1;
break;
}
switch (cfg->status)
{
case SATIPCFG_SETTLED:
if (mod_found)
cfg->status = SATIPCFG_PID_CHANGED;
break;
case SATIPCFG_PID_CHANGED:
if (!mod_found)
cfg->status = SATIPCFG_SETTLED;
break;
case SATIPCFG_CHANGED:
case SATIPCFG_INCOMPLETE:
break;
}
}
void satip_del_allpid(t_satip_config* cfg)
{
int i;
for ( i=0; i<SATIPCFG_MAX_PIDS; i++ )
satip_del_pid(cfg, cfg->pid[i]);
}
int satip_del_pid(t_satip_config* cfg,unsigned short pid)
{
int i;
for (i=0; i<SATIPCFG_MAX_PIDS; i++)
{
if ( cfg->pid[i] == pid )
switch (cfg->mod_pid[i])
{
case PID_VALID: /* mark it for deletion */
cfg->mod_pid[i] = PID_DELETE;
pidupdate_status(cfg);
return SATIPCFG_OK;
case PID_ADD: /* pid shall be added, ignore it */
cfg->mod_pid[i] = PID_IGNORE;
pidupdate_status(cfg);
return SATIPCFG_OK;
case PID_IGNORE:
break;
case PID_DELETE: /* pid shall already be deleted*/
return SATIPCFG_OK;
}
}
/* pid was not found, ignore request */
return SATIPCFG_OK;
}
int satip_add_pid(t_satip_config* cfg,unsigned short pid)
{
int i;
/* check if pid is present and valid, to be added, to be deleted */
for (i=0; i<SATIPCFG_MAX_PIDS; i++)
{
if ( cfg->pid[i] == pid )
switch (cfg->mod_pid[i])
{
case PID_VALID: /* already present */
case PID_ADD: /* pid shall be already added */
/* just return current status, no update required */
return SATIPCFG_OK;
case PID_IGNORE:
break;
case PID_DELETE:
/* pid shall be deleted, make it valid again */
cfg->mod_pid[i] = PID_VALID;
pidupdate_status(cfg);
return SATIPCFG_OK;
}
}
/* pid was not found, add it */
for ( i=0; i<SATIPCFG_MAX_PIDS; i++)
{
if (cfg->mod_pid[i] == PID_IGNORE )
{
cfg->mod_pid[i] = PID_ADD;
cfg->pid[i] = pid;
pidupdate_status(cfg);
return SATIPCFG_OK;
}
}
/* could not add it */
return SATIPCFG_ERROR;
}
static void param_update_status(t_satip_config* cfg)
{
if ( cfg->fe_type == SATIP_FE_TYPE_SAT )
{
if (
((cfg->mod_sys == SATIPCFG_MS_DVB_S) && ((cfg->param_cfg & PC_COMPLETE_DVBS ) == PC_COMPLETE_DVBS )) ||
((cfg->mod_sys == SATIPCFG_MS_DVB_S2) && ((cfg->param_cfg & PC_COMPLETE_DVBS2) == PC_COMPLETE_DVBS2 ))
)
cfg->status = SATIPCFG_CHANGED;
else
cfg->status = SATIPCFG_INCOMPLETE;
}
else if ( cfg->fe_type == SATIP_FE_TYPE_TER )
{
if (
((cfg->mod_sys == SATIPCFG_MS_DVB_T) && ((cfg->param_cfg & PC_COMPLETE_DVBT ) == PC_COMPLETE_DVBT )) ||
((cfg->mod_sys == SATIPCFG_MS_DVB_T2) && ((cfg->param_cfg & PC_COMPLETE_DVBT2) == PC_COMPLETE_DVBT2 ))
)
cfg->status = SATIPCFG_CHANGED;
else
cfg->status = SATIPCFG_INCOMPLETE;
}
else if ( cfg->fe_type == SATIP_FE_TYPE_CAB )
{
if (
(cfg->mod_sys == SATIPCFG_MS_DVB_C) && ((cfg->param_cfg & PC_COMPLETE_DVBC) == PC_COMPLETE_DVBC )
)
cfg->status = SATIPCFG_CHANGED;
else
cfg->status = SATIPCFG_INCOMPLETE;
}
else
{
cfg->status = SATIPCFG_INCOMPLETE;
}
DEBUG(MSG_MAIN,"Tuning parameter status: %08lx -> config status: %d\n",cfg->param_cfg, cfg->status);
}
int satip_set_freq(t_satip_config* cfg,unsigned int freq)
{
if ( (cfg->param_cfg & PC_FREQ) && cfg->frequency == freq )
return SATIPCFG_OK;
cfg->param_cfg |= PC_FREQ;
cfg->frequency = freq;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_polarization(t_satip_config* cfg,t_polarization pol)
{
if ( (cfg->param_cfg & PC_POL) && cfg->polarization == pol )
return SATIPCFG_OK;
cfg->param_cfg |= PC_POL;
cfg->polarization = pol;
/* polarization shall only trigger tuning if it was powered down explicitly */
if ( cfg->lnb_off==1 )
{
cfg->lnb_off = 0;
param_update_status(cfg);
}
return SATIPCFG_OK;
}
int satip_lnb_off(t_satip_config* cfg)
{
cfg->lnb_off = 1;
cfg->param_cfg &= ~PC_POL;
cfg->status = SATIPCFG_INCOMPLETE;
return SATIPCFG_OK;
}
int satip_set_rolloff(t_satip_config* cfg,t_roll_off rolloff)
{
if ( (cfg->param_cfg & PC_ROLLOFF) && cfg->roll_off == rolloff )
return SATIPCFG_OK;
cfg->param_cfg |= PC_ROLLOFF;
cfg->roll_off = rolloff;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_inversion(t_satip_config* cfg,t_inversion inversion)
{
if ( (cfg->param_cfg & PC_INVERSION) && cfg->inversion == inversion )
return SATIPCFG_OK;
cfg->param_cfg |= PC_INVERSION;
cfg->inversion = inversion;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_modsys(t_satip_config* cfg,t_mod_sys modsys)
{
if ( (cfg->param_cfg & PC_MODSYS) && cfg->mod_sys == modsys )
return SATIPCFG_OK;
cfg->param_cfg |= PC_MODSYS;
cfg->mod_sys = modsys;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_modtype(t_satip_config* cfg,t_mod_type modtype)
{
if ( (cfg->param_cfg & PC_MODTYPE) && cfg->mod_type == modtype )
return SATIPCFG_OK;
cfg->param_cfg |= PC_MODTYPE;
cfg->mod_type = modtype;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_guardinterval(t_satip_config* cfg,t_guard_interval guard_interval)
{
if ( (cfg->param_cfg & PC_GUARDINT) && cfg->guard_interval == guard_interval )
return SATIPCFG_OK;
cfg->param_cfg |= PC_GUARDINT;
cfg->guard_interval = guard_interval;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_transmode(t_satip_config* cfg,t_trans_mode trans_mode)
{
if ( (cfg->param_cfg & PC_TRANSMODE) && cfg->trans_mode == trans_mode )
return SATIPCFG_OK;
cfg->param_cfg |= PC_TRANSMODE;
cfg->trans_mode = trans_mode;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_bandwidth(t_satip_config* cfg,t_bandwidth bandwidth)
{
if ( (cfg->param_cfg & PC_BANDWIDTH) && cfg->bandwidth == bandwidth )
return SATIPCFG_OK;
cfg->param_cfg |= PC_BANDWIDTH;
cfg->bandwidth = bandwidth;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_plp(t_satip_config* cfg,unsigned int plp)
{
if ( (cfg->param_cfg & PC_PLP) && cfg->plp == plp )
return SATIPCFG_OK;
cfg->param_cfg |= PC_PLP;
cfg->plp = plp;
param_update_status(cfg);
return SATIPCFG_OK;
}
/* unused */
int satip_set_t2id(t_satip_config* cfg,unsigned short t2id)
{
if ( (cfg->param_cfg & PC_T2ID) && cfg->t2id == t2id )
return SATIPCFG_OK;
cfg->param_cfg |= PC_T2ID;
cfg->t2id = t2id;
param_update_status(cfg);
return SATIPCFG_OK;
}
/* unused */
int satip_set_sisomosi_mode(t_satip_config* cfg,t_siso_miso sm)
{
if ( (cfg->param_cfg & PC_SM) && cfg->sisomiso_mode == sm )
return SATIPCFG_OK;
cfg->param_cfg |= PC_SM;
cfg->sisomiso_mode = sm;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_pilots(t_satip_config* cfg,t_pilots pilots)
{
if ( (cfg->param_cfg & PC_PILOTS) && cfg->pilots == pilots )
return SATIPCFG_OK;
cfg->param_cfg |= PC_PILOTS;
cfg->pilots = pilots;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_symbol_rate(t_satip_config* cfg,unsigned int symrate)
{
if ( (cfg->param_cfg & PC_SYMRATE) && cfg->symbol_rate == symrate )
return SATIPCFG_OK;
cfg->param_cfg |= PC_SYMRATE;
cfg->symbol_rate = symrate;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_fecinner(t_satip_config* cfg, t_fec_inner fecinner)
{
if ( (cfg->param_cfg & PC_FECINNER) && cfg->fec_inner == fecinner )
return SATIPCFG_OK;
cfg->param_cfg |= PC_FECINNER;
cfg->fec_inner = fecinner;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_set_position(t_satip_config* cfg, int position)
{
if ( (cfg->param_cfg & PC_POSITION) && cfg->position == position )
return SATIPCFG_OK;
cfg->param_cfg |= PC_POSITION;
cfg->position = position;
param_update_status(cfg);
return SATIPCFG_OK;
}
int satip_valid_config(t_satip_config* cfg)
{
return ( cfg->status != SATIPCFG_INCOMPLETE );
}
int satip_tuning_required(t_satip_config* cfg)
{
return ( cfg->status == SATIPCFG_CHANGED );
}
int satip_pid_update_required(t_satip_config* cfg)
{
return ( cfg->status == SATIPCFG_PID_CHANGED );
}
static int setpidlist(t_satip_config* cfg, char* str,int maxlen,const char* firststr,int modtype1, int modtype2)
{
int i;
int printed=0;
int first=1;
for ( i=0; i<SATIPCFG_MAX_PIDS; i++ )
if ( cfg->mod_pid[i] == modtype1 ||
cfg->mod_pid[i] == modtype2 )
{
printed += snprintf(str+printed, maxlen-printed, "%s%d",
first ? firststr : ",",
cfg->pid[i]);
first=0;
if ( printed>=maxlen )
return printed;
}
return printed;
}
int satip_prepare_tuning(t_satip_config* cfg, char* str, int maxlen)
{
int printed;
char frontend_str[7]="";
/* optional: specific frontend */
if ( cfg->frontend > 0 && cfg->frontend<100)
sprintf(frontend_str, "fe=%d&", cfg->frontend);
if ((cfg->mod_sys == SATIPCFG_MS_DVB_S) || (cfg->mod_sys == SATIPCFG_MS_DVB_S2))
{
/* DVB-S mandatory parameters */
printed = snprintf(str, maxlen,
"src=%d&%sfreq=%d.%d&pol=%c&msys=%s&sr=%d&fec=%s",
cfg->position,
frontend_str,
cfg->frequency/10, cfg->frequency%10,
strmap_polarization[cfg->polarization],
cfg->mod_sys == SATIPCFG_MS_DVB_S ? "dvbs" : "dvbs2",
cfg->symbol_rate,
strmap_fecinner[cfg->fec_inner]);
if ( printed>=maxlen )
return printed;
str += printed;
/* DVB-S2 additional required parameters */
if ( cfg->mod_sys == SATIPCFG_MS_DVB_S2 )
{
printed += snprintf(str, maxlen-printed, "&ro=%s&mtype=%s&plts=%s",
strmap_rolloff[cfg->roll_off],
strmap_modtype[cfg->mod_type],
cfg->pilots == SATIPCFG_P_OFF ? "off" : "on" );
}
}
else if ((cfg->mod_sys == SATIPCFG_MS_DVB_T) || (cfg->mod_sys == SATIPCFG_MS_DVB_T2))
{
/* DVB-T mandatory parameters */
printed = snprintf(str, maxlen,
"%sfreq=%d.%d&bw=%s&msys=%s&tmode=%s&mtype=%s&gi=%s&fec=%s",
frontend_str,
cfg->frequency/1000000, cfg->frequency%1000000,
strmap_bandwidth[cfg->bandwidth],
cfg->mod_sys == SATIPCFG_MS_DVB_T ? "dvbt" : "dvbt2",
strmap_transmode[cfg->trans_mode],
strmap_modtype[cfg->mod_type],
strmap_guartinterval[cfg->guard_interval],
strmap_fecinner[cfg->fec_inner]);
if ( printed>=maxlen )
return printed;
str += printed;
/* DVB-T2 additional required parameters */
if ( cfg->mod_sys == SATIPCFG_MS_DVB_T2 )
{
printed += snprintf(str, maxlen-printed, "&plp=%d",
cfg->plp);
/* do not know how to handle these parameters as there is no counterpart in the DVB API.
printed += snprintf(str, maxlen-printed, "&plp=%d&t2id=%d&sm=%d",
cfg->plp,
cfg->t2id,
cfg->sisomiso_mode);
*/
}
}
else if ((cfg->mod_sys == SATIPCFG_MS_DVB_C))
{
/* DVB-C mandatory parameters */
printed = snprintf(str, maxlen,
"%sfreq=%d.%d&msys=%s&mtype=%s&sr=%d",
frontend_str,
cfg->frequency/1000000, cfg->frequency%1000000,
cfg->mod_sys == SATIPCFG_MS_DVB_C ? "dvbc" : "dvbc2",
strmap_modtype[cfg->mod_type],
cfg->symbol_rate);
if ( printed>=maxlen )
return printed;
str += printed;
/* DVB-C additional optional parameters */
if ( cfg->inversion != SATIPCFG_I_NONE )
{
printed += snprintf(str, maxlen-printed, "&specinv=%s",
cfg->inversion == SATIPCFG_I_ON ? "1" : "0");
}
}
/* don´t forget to check on caller ! */
return printed;
}
int satip_prepare_pids(t_satip_config* cfg, char* str, int maxlen,int modpid)
{
int printed;
if (modpid)
{
printed = setpidlist(cfg,str,maxlen,"addpids=",PID_ADD, PID_ADD);
if ( printed>=maxlen )
return printed;
printed += setpidlist(cfg, str+printed,maxlen-printed,
printed>0 ? "&delpids=" : "delpids=",PID_DELETE, PID_DELETE);
}
else
{
// Add workaround for Fritzdvbc quirk: add dummy pid
if (enabled_workarounds & 0x01)
printed = setpidlist(cfg,str,maxlen,"pids=100,",PID_VALID, PID_ADD);
else
printed = setpidlist(cfg,str,maxlen,"pids=",PID_VALID, PID_ADD);
}
/* nothing was added, use "none" */
if ( printed == 0 )
{
printed = snprintf(str,maxlen,"pids=none");
}
/* don´t forget to check on caller */
return printed;
}
int satip_settle_config(t_satip_config* cfg)
{
int i;
int retval=SATIPCFG_OK;
switch (cfg->status)
{
case SATIPCFG_CHANGED:
case SATIPCFG_PID_CHANGED:
/* clear up addpids delpids */
for ( i=0; i<SATIPCFG_MAX_PIDS; i++)
if ( cfg->mod_pid[i] == PID_ADD )
cfg->mod_pid[i] = PID_VALID;
else if (cfg->mod_pid[i] == PID_DELETE )
cfg->mod_pid[i] = PID_IGNORE;
/* now settled */
cfg->status = SATIPCFG_SETTLED;
break;
case SATIPCFG_SETTLED:
break;
case SATIPCFG_INCOMPLETE: /* cannot settle this.. */
default:
retval=SATIPCFG_ERROR;
break;
}
return retval;
}
void satip_clear_config(t_satip_config* cfg)
{
int i;
cfg->status = SATIPCFG_INCOMPLETE;
cfg->param_cfg = 0;
cfg->lnb_off = 0;
for ( i=0; i<SATIPCFG_MAX_PIDS; i++)
cfg->mod_pid[i]=PID_IGNORE;
}