Provides interfaces to deal with DVB frontend. More...

#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <string.h>
#include "dvb-frontend.h"
#include "dvb-sat.h"
#include "dvb-log.h"

Data Structures
struct	dvb_v5_fe_parms
	Keeps data needed to handle the DVB frontend. More...

Macros
#define	ARRAY_SIZE(x)
	Calculates the number of elements of an array.

#define	MAX_DELIVERY_SYSTEMS
	Max number of delivery systems for a given frontend.

Functions
struct dvb_v5_fe_parms *	dvb_fe_dummy (void)
	Allocates a dummy frontend structure.

struct dvb_v5_fe_parms *	dvb_fe_open_flags (int adapter, int frontend, unsigned verbose, unsigned use_legacy_call, dvb_logfunc logfunc, int flags)
	Opens a frontend and allocates a structure to work with.

struct dvb_v5_fe_parms *	dvb_fe_open (int adapter, int frontend, unsigned verbose, unsigned use_legacy_call)
	Opens a frontend and allocates a structure to work with.

struct dvb_v5_fe_parms *	dvb_fe_open2 (int adapter, int frontend, unsigned verbose, unsigned use_legacy_call, dvb_logfunc logfunc)
	Opens a frontend and allocates a structure to work with.

void	dvb_fe_close (struct dvb_v5_fe_parms *parms)
	Closes the frontend and frees allocated resources.

const char *	dvb_cmd_name (int cmd)
	Returns the string name associated with a DVBv5 command.

const char const	dvb_attr_names (int cmd)
	Returns an string array with the valid string values associated with a DVBv5 command.

int	dvb_fe_retrieve_parm (const struct dvb_v5_fe_parms parms, unsigned cmd, uint32_t value)
	Retrieves the value of a DVBv5/libdvbv5 property.

int	dvb_fe_store_parm (struct dvb_v5_fe_parms *parms, unsigned cmd, uint32_t value)
	Stores the value of a DVBv5/libdvbv5 property.

int	dvb_set_sys (struct dvb_v5_fe_parms *parms, fe_delivery_system_t sys)
	Sets the delivery system.

int	dvb_add_parms_for_sys (struct dvb_v5_fe_parms *parms, fe_delivery_system_t sys)
	Make dvb properties reflect the current standard.

int	dvb_set_compat_delivery_system (struct dvb_v5_fe_parms *parms, uint32_t desired_system)
	Sets the delivery system.

void	dvb_fe_prt_parms (const struct dvb_v5_fe_parms *parms)
	Prints all the properties at the cache.

int	dvb_fe_set_parms (struct dvb_v5_fe_parms *parms)
	Prints all the properties at the cache.

int	dvb_fe_get_parms (struct dvb_v5_fe_parms *parms)
	Prints all the properties at the cache.

struct dtv_stats *	dvb_fe_retrieve_stats_layer (struct dvb_v5_fe_parms *parms, unsigned cmd, unsigned layer)
	Retrieve the stats for a DTV layer from cache.

int	dvb_fe_retrieve_stats (struct dvb_v5_fe_parms parms, unsigned cmd, uint32_t value)
	Retrieve the stats for a DTV layer from cache.

int	dvb_fe_get_stats (struct dvb_v5_fe_parms *parms)
	Retrieve the stats from the Kernel.

float	dvb_fe_retrieve_ber (struct dvb_v5_fe_parms parms, unsigned layer, enum fecap_scale_params scale)
	Retrieve the BER stats from cache.

float	dvb_fe_retrieve_per (struct dvb_v5_fe_parms *parms, unsigned layer)
	Retrieve the PER stats from cache.

enum dvb_quality	dvb_fe_retrieve_quality (struct dvb_v5_fe_parms *parms, unsigned layer)
	Retrieve the quality stats from cache.

int	dvb_fe_snprintf_eng (char *buf, int len, float val)
	Ancillary function to sprintf on ENG format.

int	dvb_fe_snprintf_stat (struct dvb_v5_fe_parms parms, uint32_t cmd, char display_name, int layer, char *buf, int len, int *show_layer_name)
	Ancillary function to sprintf on ENG format.

int	dvb_fe_get_event (struct dvb_v5_fe_parms *parms)
	Get both status statistics and dvb parameters.

int	dvb_fe_sec_voltage (struct dvb_v5_fe_parms *parms, int on, int v18)
	DVB ioctl wrapper for setting SEC voltage.

int	dvb_fe_sec_tone (struct dvb_v5_fe_parms *parms, fe_sec_tone_mode_t tone)
	DVB ioctl wrapper for setting SEC tone.

int	dvb_fe_lnb_high_voltage (struct dvb_v5_fe_parms *parms, int on)
	DVB ioctl wrapper for setting LNBf high voltage.

int	dvb_fe_diseqc_burst (struct dvb_v5_fe_parms *parms, int mini_b)
	DVB ioctl wrapper for setting SEC DiSeqC tone burst to select between satellite A or B.

int	dvb_fe_diseqc_cmd (struct dvb_v5_fe_parms parms, const unsigned len, const unsigned char buf)
	DVB ioctl wrapper for setting SEC DiSeqC command.

int	dvb_fe_diseqc_reply (struct dvb_v5_fe_parms parms, unsigned len, char *buf, int timeout)
	DVB ioctl wrapper for getting SEC DiSEqC reply.

int	dvb_fe_is_satellite (uint32_t delivery_system)
	DVB Ancillary routine to check if a given Delivery system is satellite.

int	dvb_fe_set_default_country (struct dvb_v5_fe_parms parms, const char country)
	Set default country variant of delivery systems like ISDB-T.

Detailed Description

Provides interfaces to deal with DVB frontend.

Copyright: GNU Lesser General Public License version 2.1 (LGPLv2.1)

Author: Mauro Carvalho Chehab

The libdvbv5 API works with a set of key/value properties. There are two types of properties:

The ones defined at the Kernel's frontent API, that are found at /usr/include/linux/dvb/frontend.h (actually, it uses a local copy of that file, stored at ./include/linux/dvb/frontend.h)
Some extra properties used by libdvbv5. Those can be found at lib/include/libdvbv5/dvb-v5-std.h and start at DTV_USER_COMMAND_START.

Just like the DTV properties, the stats are cached. That warrants that all stats are got at the same time, when dvb_fe_get_stats() is called.

Bug Report: Please submit bug reports and patches to linux.nosp@m.-med.nosp@m.ia@vg.nosp@m.er.k.nosp@m.ernel.nosp@m..org

Definition in file dvb-fe.h.

Data Structures

Macros

Functions

Detailed Description