dvb_tune.c

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/* dvbtune - tune.c

   Copyright (C) Dave Chapman 2001,2002

   Modified for use with MPlayer, for details see the changelog at
   http://svn.mplayerhq.hu/mplayer/trunk/
   $Id: dvb_tune.c,v 1.2 2008/03/03 08:11:38 dsqiu Exp $

   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.
   Or, point your browser to http://www.gnu.org/copyleft/gpl.html

*/

#include <mplaylib.h>
#include <mplaylib.h>
#include <ctype.h>
#include <sys/ioctl.h>
#include <sys/poll.h>
#include <mplaylib.h>
#include <fcntl.h>
#include <error.h>
#include <time.h>
#include <errno.h>
#include "config.h"

#ifdef HAVE_DVB_HEAD
	#include <linux/dvb/dmx.h>
	#include <linux/dvb/frontend.h>
	char* dvb_frontenddev[4]={"/dev/dvb/adapter0/frontend0","/dev/dvb/adapter1/frontend0","/dev/dvb/adapter2/frontend0","/dev/dvb/adapter3/frontend0"};
	char* dvb_dvrdev[4]={"/dev/dvb/adapter0/dvr0","/dev/dvb/adapter1/dvr0","/dev/dvb/adapter2/dvr0","/dev/dvb/adapter3/dvr0"};
	char* dvb_demuxdev[4]={"/dev/dvb/adapter0/demux0","/dev/dvb/adapter1/demux0","/dev/dvb/adapter2/demux0","/dev/dvb/adapter3/demux0"};
	static char* dvb_secdev[4]={"","","",""};	//UNUSED, ONLY FOR UNIFORMITY
#else
	#include <ost/dmx.h>
	#include <ost/sec.h>
	#include <ost/frontend.h>
	char* dvb_frontenddev[4]={"/dev/ost/frontend0","/dev/ost/frontend1","/dev/ost/frontend2","/dev/ost/frontend3"};
	char* dvb_dvrdev[4]={"/dev/ost/dvr0","/dev/ost/dvr1","/dev/ost/dvr2","/dev/ost/dvr3"};
	static char* dvb_secdev[4]={"/dev/ost/sec0","/dev/ost/sec1","/dev/ost/sec2","/dev/ost/sec3"};
	char* dvb_demuxdev[4]={"/dev/ost/demux0","/dev/ost/demux1","/dev/ost/demux2","/dev/ost/demux3"};
#endif

#include "dvbin.h"
#include "mp_msg.h"



int dvb_get_tuner_type(int fe_fd)
{
#ifdef HAVE_DVB_HEAD
  struct dvb_frontend_info fe_info;
#else
  FrontendInfo fe_info;
#endif

  int res;

  res = ioctl(fe_fd, FE_GET_INFO, &fe_info);
  if(res < 0)
  {
  	mp_msg(MSGT_DEMUX, MSGL_ERR, "FE_GET_INFO error: %d, FD: %d\n\n", errno, fe_fd);
	return 0;
  }

  switch(fe_info.type)
  {
	case FE_OFDM:
      mp_msg(MSGT_DEMUX, MSGL_V, "TUNER TYPE SEEMS TO BE DVB-T\n");
	  return TUNER_TER;

	case FE_QPSK:
      mp_msg(MSGT_DEMUX, MSGL_V, "TUNER TYPE SEEMS TO BE DVB-S\n");
	  return TUNER_SAT;

	case FE_QAM:
      mp_msg(MSGT_DEMUX, MSGL_V, "TUNER TYPE SEEMS TO BE DVB-C\n");
	  return TUNER_CBL;

#ifdef DVB_ATSC
	case FE_ATSC:
      mp_msg(MSGT_DEMUX, MSGL_V, "TUNER TYPE SEEMS TO BE DVB-ATSC\n");
	  return TUNER_ATSC;
#endif
	default:
	  mp_msg(MSGT_DEMUX, MSGL_ERR, "UNKNOWN TUNER TYPE\n");
	  return 0;
  }

}

int dvb_set_ts_filt(int fd, uint16_t pid, dmx_pes_type_t pestype);

int dvb_open_devices(dvb_priv_t *priv, int n, int demux_cnt, int *pids)
{
	int i;
	
	priv->fe_fd = open(dvb_frontenddev[n], O_RDWR | O_NONBLOCK);
	if(priv->fe_fd < 0)
	{
		mp_msg(MSGT_DEMUX, MSGL_ERR, "ERROR OPENING FRONTEND DEVICE %s: ERRNO %d\n", dvb_frontenddev[n], errno);
		return 0;
	}
#ifdef HAVE_DVB_HEAD
	priv->sec_fd=0;
#else
	priv->sec_fd = open(dvb_secdev[n], O_RDWR);
	if(priv->sec_fd < 0)
	{
		mp_msg(MSGT_DEMUX, MSGL_ERR, "ERROR OPENING SEC DEVICE %s: ERRNO %d\n", dvb_secdev[n], errno);
		close(priv->fe_fd);
		return 0;
	}
#endif
	priv->demux_fds_cnt = 0;
	mp_msg(MSGT_DEMUX, MSGL_V, "DVB_OPEN_DEVICES(%d)\n", demux_cnt);
	for(i = 0; i < demux_cnt; i++)
	{
		priv->demux_fds[i] = open(dvb_demuxdev[n], O_RDWR | O_NONBLOCK);
		if(priv->demux_fds[i] < 0)
		{
			mp_msg(MSGT_DEMUX, MSGL_ERR, "ERROR OPENING DEMUX 0: %d\n", errno);
			return 0;
		}
		else
		{
			mp_msg(MSGT_DEMUX, MSGL_V, "OPEN(%d), file %s: FD=%d, CNT=%d\n", i, dvb_demuxdev[n], priv->demux_fds[i], priv->demux_fds_cnt);
			priv->demux_fds_cnt++;
		}
	}


	priv->dvr_fd = open(dvb_dvrdev[n], O_RDONLY| O_NONBLOCK);
	if(priv->dvr_fd < 0)
	{
		mp_msg(MSGT_DEMUX, MSGL_ERR, "ERROR OPENING DVR DEVICE %s: %d\n", dvb_dvrdev[n], errno);
		return 0;
	}

	return 1;
}


int dvb_fix_demuxes(dvb_priv_t *priv, int cnt, int *pids)
{
	int i;
	
	mp_msg(MSGT_DEMUX, MSGL_V, "FIX %d -> %d\n", priv->demux_fds_cnt, cnt);
	if(priv->demux_fds_cnt >= cnt)
	{
		for(i = priv->demux_fds_cnt-1; i >= cnt; i--)
		{
			mp_msg(MSGT_DEMUX, MSGL_V, "FIX, CLOSE fd(%d): %d\n", i, priv->demux_fds[i]);
			close(priv->demux_fds[i]);
		}
		priv->demux_fds_cnt = cnt;
	}
	else if(priv->demux_fds_cnt < cnt)
	{
		for(i = priv->demux_fds_cnt; i < cnt; i++)
		{
			priv->demux_fds[i] = open(dvb_demuxdev[priv->card], O_RDWR | O_NONBLOCK);
			mp_msg(MSGT_DEMUX, MSGL_V, "FIX, OPEN fd(%d): %d\n", i, priv->demux_fds[i]);
			if(priv->demux_fds[i] < 0)
			{
				mp_msg(MSGT_DEMUX, MSGL_ERR, "ERROR OPENING DEMUX 0: %d\n", errno);
				return 0;
			}
			else
				priv->demux_fds_cnt++;
		}	
	}
	
	return 1;
}

int dvb_set_ts_filt(int fd, uint16_t pid, dmx_pes_type_t pestype)
{
	int i;
	struct dmx_pes_filter_params pesFilterParams;

	pesFilterParams.pid     = pid;
	pesFilterParams.input   = DMX_IN_FRONTEND;
	pesFilterParams.output  = DMX_OUT_TS_TAP;
#ifdef HAVE_DVB_HEAD
	pesFilterParams.pes_type = pestype;
#else
	pesFilterParams.pesType = pestype;
#endif

	pesFilterParams.flags   = DMX_IMMEDIATE_START;

	errno = 0;
	if ((i = ioctl(fd, DMX_SET_PES_FILTER, &pesFilterParams)) < 0)
	{
		mp_msg(MSGT_DEMUX, MSGL_ERR, "ERROR IN SETTING DMX_FILTER %i for fd %d: ERRNO: %d", pid, fd, errno);
		return 0;
	}

	mp_msg(MSGT_DEMUX, MSGL_V, "SET PES FILTER ON PID %d to fd %d, RESULT: %d, ERRNO: %d\n", pid, fd, i, errno);
	return 1;
}


int dvb_demux_stop(int fd)
{
	int i;
	i = ioctl(fd, DMX_STOP);

	mp_msg(MSGT_DEMUX, MSGL_DBG2, "STOPPING FD: %d, RESULT: %d\n", fd, i);

	return (i==0);
}


int dvb_demux_start(int fd)
{
	int i;
	i = ioctl(fd, DMX_START);

	mp_msg(MSGT_DEMUX, MSGL_DBG2, "STARTING FD: %d, RESULT: %d\n", fd, i);

	return (i==0);
}


static int tune_it(int fd_frontend, int fd_sec, unsigned int freq, unsigned int srate, char pol, int tone,
	fe_spectral_inversion_t specInv, unsigned int diseqc, fe_modulation_t modulation, fe_code_rate_t HP_CodeRate,
	fe_transmit_mode_t TransmissionMode, fe_guard_interval_t guardInterval, fe_bandwidth_t bandwidth,
	fe_code_rate_t LP_CodeRate, fe_hierarchy_t hier, int tmout);


int dvb_tune(dvb_priv_t *priv, int freq, char pol, int srate, int diseqc, int tone,
		fe_spectral_inversion_t specInv, fe_modulation_t modulation, fe_guard_interval_t guardInterval,
		fe_transmit_mode_t TransmissionMode, fe_bandwidth_t bandWidth, fe_code_rate_t HP_CodeRate,
		fe_code_rate_t LP_CodeRate, fe_hierarchy_t hier, int timeout)
{
	int ris;

	mp_msg(MSGT_DEMUX, MSGL_INFO, "dvb_tune Freq: %lu\n", (long unsigned int) freq);

		ris = tune_it(priv->fe_fd, priv->sec_fd, freq, srate, pol, tone, specInv, diseqc, modulation, HP_CodeRate, TransmissionMode, guardInterval, bandWidth, LP_CodeRate, hier, timeout);

	if(ris != 0)
		mp_msg(MSGT_DEMUX, MSGL_INFO, "dvb_tune, TUNING FAILED\n");

	return (ris == 0);
}


#ifndef HAVE_DVB_HEAD
static int SecGetStatus (int fd, struct secStatus *state)
{
    if(ioctl(fd, SEC_GET_STATUS, state) < 0)
    {
        mp_msg(MSGT_DEMUX, MSGL_ERR, ("SEC GET STATUS: "));
        return -1;
    }

    switch (state->busMode)
    {
	case SEC_BUS_IDLE:
    	    mp_msg(MSGT_DEMUX, MSGL_V, "SEC BUS MODE:  IDLE (%d)\n",state->busMode);
    	    break;
	case SEC_BUS_BUSY:
    	    mp_msg(MSGT_DEMUX, MSGL_V, "SEC BUS MODE:  BUSY (%d)\n",state->busMode);
	    break;
        case SEC_BUS_OFF:
	    mp_msg(MSGT_DEMUX, MSGL_V, "SEC BUS MODE:  OFF  (%d)\n",state->busMode);
    	    break;
        case SEC_BUS_OVERLOAD:
	    mp_msg(MSGT_DEMUX, MSGL_V, "SEC BUS MODE:  OVERLOAD (%d)\n",state->busMode);
    	    break;
	default:
    	    mp_msg(MSGT_DEMUX, MSGL_V, "SEC BUS MODE:  unknown  (%d)\n",state->busMode);
            break;
    }

    switch (state->selVolt)
    {
	case SEC_VOLTAGE_OFF:
		mp_msg(MSGT_DEMUX, MSGL_V, "SEC VOLTAGE:  OFF (%d)\n",state->selVolt);
		break;
	case SEC_VOLTAGE_LT:
		mp_msg(MSGT_DEMUX, MSGL_V, "SEC VOLTAGE:  LT  (%d)\n",state->selVolt);
		break;
	case SEC_VOLTAGE_13:
		mp_msg(MSGT_DEMUX, MSGL_V, "SEC VOLTAGE:  13  (%d)\n",state->selVolt);
		break;
	case SEC_VOLTAGE_13_5:
		mp_msg(MSGT_DEMUX, MSGL_V, "SEC VOLTAGE:  13.5 (%d)\n",state->selVolt);
		break;
	case SEC_VOLTAGE_18:
		mp_msg(MSGT_DEMUX, MSGL_V, "SEC VOLTAGE:  18 (%d)\n",state->selVolt);
		break;
	case SEC_VOLTAGE_18_5:
		mp_msg(MSGT_DEMUX, MSGL_V, "SEC VOLTAGE:  18.5 (%d)\n",state->selVolt);
		break;
	default:
		mp_msg(MSGT_DEMUX, MSGL_V, "SEC VOLTAGE:  unknown (%d)\n",state->selVolt);
		break;
    }

    mp_msg(MSGT_DEMUX, MSGL_V, "SEC CONT TONE: %s\n", (state->contTone == SEC_TONE_ON ? "ON" : "OFF"));
    return 0;
}

#endif

static void print_status(fe_status_t festatus)
{
	mp_msg(MSGT_DEMUX, MSGL_V, "FE_STATUS:");
	if (festatus & FE_HAS_SIGNAL) mp_msg(MSGT_DEMUX, MSGL_V," FE_HAS_SIGNAL");
#ifdef HAVE_DVB_HEAD
	if (festatus & FE_TIMEDOUT) mp_msg(MSGT_DEMUX, MSGL_V, " FE_TIMEDOUT");
#else
	if (festatus & FE_HAS_POWER) mp_msg(MSGT_DEMUX, MSGL_V, " FE_HAS_POWER");
	if (festatus & FE_SPECTRUM_INV) mp_msg(MSGT_DEMUX, MSGL_V, " FE_SPECTRUM_INV");
	if (festatus & FE_TUNER_HAS_LOCK) mp_msg(MSGT_DEMUX, MSGL_V, " FE_TUNER_HAS_LOCK");
#endif
	if (festatus & FE_HAS_LOCK) mp_msg(MSGT_DEMUX, MSGL_V, " FE_HAS_LOCK");
	if (festatus & FE_HAS_CARRIER) mp_msg(MSGT_DEMUX, MSGL_V, " FE_HAS_CARRIER");
	if (festatus & FE_HAS_VITERBI) mp_msg(MSGT_DEMUX, MSGL_V, " FE_HAS_VITERBI");
	if (festatus & FE_HAS_SYNC) mp_msg(MSGT_DEMUX, MSGL_V, " FE_HAS_SYNC");
	mp_msg(MSGT_DEMUX, MSGL_V, "\n");
}


#ifdef HAVE_DVB_HEAD
static int check_status(int fd_frontend, int tmout)
{
	int32_t strength;
	fe_status_t festatus;
	struct pollfd pfd[1];
	int ok=0, locks=0;
	time_t tm1, tm2;

	pfd[0].fd = fd_frontend;
	pfd[0].events = POLLPRI;

	mp_msg(MSGT_DEMUX, MSGL_V, "Getting frontend status\n");
	tm1 = tm2 = time((time_t*) NULL);
	while(!ok)
	{
		festatus = 0;
		if(poll(pfd,1,tmout*1000) > 0)
		{
			if (pfd[0].revents & POLLPRI)
			{
				if(ioctl(fd_frontend, FE_READ_STATUS, &festatus) >= 0)
					if(festatus & FE_HAS_LOCK)
						locks++;
			}
		}
		usleep(10000);
		tm2 = time((time_t*) NULL);
		if((festatus & FE_TIMEDOUT) || (locks >= 2) || (tm2 - tm1 >= tmout))