Service Information Query: cache functionality. More...

#include <string.h>
#include "siq_debug.h"
#include "siq_cache.h"
#include "siq_main.h"
#include "cldsmcc.h"

Macros
#define	SIQ_DEFAULT_PMT_TOTAL 64

#define	VERSION_CHANGED 0xff

#define	PMT_TID 0x02

Typedefs
typedef struct s_SiqCachePat	S_SiqCachePat

typedef struct s_SiqCachePmt	S_SiqCachePmt

Functions
BOOLEAN	SIQ_CacheInit (S_SiqInstance *siq)

void	SIQ_CacheExit (S_SiqInstance *siq)

void	SIQ_UpdatePat (H_SiqInstance siq, U8BIT *dptr)
	Provide SIQ with latest PAT data. Calling this function is optional. However, if not used, then the platform must use SIQ_ServiceRemoved and SIQ_TransportChanged. More...

void	SIQ_TransportChanged (H_SiqInstance siq, U16BIT origNetworkId, U16BIT transportId)
	Inform SIQ when a demux is tuning to another transport stream. Not required if PAT is supplied to SIQ. More...

void	SIQ_ServiceRemoved (H_SiqInstance siq, U16BIT serviceId)
	Inform SIQ when a service has been removed from PAT. Not required if PAT is supplied to SIQ. More...

E_SIQ_STATUS	SIQ_RequirePmt (H_SiqInstance siq, U8BIT pmt, U16BIT pSid, U8BIT *pVer)
	Ask SIQ whether PMT section data is required. It assumes CRC has been checked and is passing valid PMT sections So the first byte of data must be PMT table id (i.e. 0x02). If SIQ does not receive PAT then this function adds SIQ knowledge of the service. More...

H_SiqPmtTable	SIQ_ParsePmt (H_SiqInstance siq, U8BIT *pmt)
	Provide PMT section data to SIQ. It assumes CRC has been checked and is passing valid PMT sections So the first byte of data must be PMT table id (i.e. 0x02). If SIQ does not receive PAT then this function adds SIQ knowledge of the service. More...

void	SIQ_ProcessPmt (H_SiqInstance siq, H_SiqPmtTable hNewTable, U16BIT serviceId, U8BIT version)
	Provide PMT section data to SIQ. It assumes CRC has been checked and is passing valid PMT sections So the first byte of data must be PMT table id (i.e. 0x02). If SIQ does not receive PAT then this function adds SIQ knowledge of the service. More...

H_SiqPmtTable	SIQ_CacheRetrievePmt (S_SiqInstance siq, U16BIT serviceId, U32BIT gettingPmt)

void	SIQ_CacheClearPmt (H_SiqInstance siq, U16BIT serviceId)
	Clear cached PMT information. More...

void	SIQ_CacheClear (S_SiqInstance *siq)

E_DscError	SIQ_ServiceInfoChangeSubscribe (S_SiqInstance *siq, U16BIT serviceId)
	Subscribe a component to receive notification of any changes or alterations to the service information of a specified service. More...

void	SIQ_ServiceInfoChangeUnsubscribe (S_SiqInstance *siq, U16BIT serviceId)
	Unsubscribe component to previously subscribed service change or alteration updates. More...

Detailed Description

Service Information Query: cache functionality.

Date: 29-09-2013

Author: Adam Sturtridge

Definition in file siq_cache.c.

Function Documentation

void SIQ_CacheClearPmt	(	H_SiqInstance	siq,
		U16BIT	serviceId
	)

Clear cached PMT information.

Parameters

H_SiqInstance	siq SIQ instance handle.
U16BIT	serviceId Service whose PMT needs to be cleared

Returns: void

Definition at line 595 of file siq_cache.c.

H_SiqPmtTable SIQ_ParsePmt	(	H_SiqInstance	siq,
		U8BIT *	pmt
	)

Provide PMT section data to SIQ. It assumes CRC has been checked and is passing valid PMT sections So the first byte of data must be PMT table id (i.e. 0x02). If SIQ does not receive PAT then this function adds SIQ knowledge of the service.

Parameters

H_SiqInstance	siqInstance SIQ instance handle.
U8BIT*	pmt raw PMT section data

Returns: void

Definition at line 494 of file siq_cache.c.

void SIQ_ProcessPmt	(	H_SiqInstance	siq,
		H_SiqPmtTable	hNewTable,
		U16BIT	serviceId,
		U8BIT	version
	)

Provide PMT section data to SIQ. It assumes CRC has been checked and is passing valid PMT sections So the first byte of data must be PMT table id (i.e. 0x02). If SIQ does not receive PAT then this function adds SIQ knowledge of the service.

Provide PMT section data to SIQ. It assumes CRC has been checked and is passing valid PMT sections So the first byte of data must be PMT table id (i.e. 0x02). If SIQ does not receive PAT then this function adds SIQ knowledge of the service. This may initiate calls to F_ParseDataBcastId(), and may be followed by DSM-CC callback functions for Load Carousel or Load Object, where states can be any (including 'aborted').

Parameters

H_SiqInstance	siqInstance SIQ instance handle.
U8BIT*	pmt raw PMT section data

Returns: void

Definition at line 509 of file siq_cache.c.

E_SIQ_STATUS SIQ_RequirePmt	(	H_SiqInstance	siq,
		U8BIT *	pmt,
		U16BIT *	pSid,
		U8BIT *	pVer
	)

Ask SIQ whether PMT section data is required. It assumes CRC has been checked and is passing valid PMT sections So the first byte of data must be PMT table id (i.e. 0x02). If SIQ does not receive PAT then this function adds SIQ knowledge of the service.

Parameters

H_SiqInstance	siq SIQ instance handle.
U8BIT*	pmt raw PMT section data header

Returns: E_SIQ_STATUS

Definition at line 433 of file siq_cache.c.

E_DscError SIQ_ServiceInfoChangeSubscribe	(	S_SiqInstance *	siq,
		U16BIT	serviceId
	)

Subscribe a component to receive notification of any changes or alterations to the service information of a specified service.

Parameters

H_DsmCoreInst	instance DMSM-CC instance handle.
U16BIT	service_id Service to monitor.

Returns: E_DscError

Definition at line 649 of file siq_cache.c.

void SIQ_ServiceInfoChangeUnsubscribe	(	S_SiqInstance *	siq,
		U16BIT	serviceId
	)

Unsubscribe component to previously subscribed service change or alteration updates.

Parameters

H_DsmCoreInst	instance DMSM-CC instance handle.
U16BIT	service_id Service to monitor.

Returns: n/a

Definition at line 696 of file siq_cache.c.

void SIQ_ServiceRemoved	(	H_SiqInstance	siq,
		U16BIT	serviceId
	)

Inform SIQ when a service has been removed from PAT. Not required if PAT is supplied to SIQ.

Inform SIQ when a service has been removed from PAT. Not required if PAT is supplied to SIQ. This may initiate calls to DSM-CC callback functions for Load Carousel or Load Object, where states are 'aborted'.

Parameters

H_SiqInstance	siqInstance SIQ instance handle.
U16BIT	serviceId Service Id of removed service

Returns: void

Definition at line 409 of file siq_cache.c.

void SIQ_TransportChanged	(	H_SiqInstance	siq,
		U16BIT	origNetworkId,
		U16BIT	transportId
	)

Inform SIQ when a demux is tuning to another transport stream. Not required if PAT is supplied to SIQ.

Inform SIQ when tuning to another transport stream. Not required if PAT is supplied to SIQ.

Parameters

H_SiqInstance	siqInstance SIQ instance handle.
U16BIT	transportId Id of new transport stream

Returns: void

Definition at line 391 of file siq_cache.c.

void SIQ_UpdatePat	(	H_SiqInstance	siq,
		U8BIT *	dptr
	)

Provide SIQ with latest PAT data. Calling this function is optional. However, if not used, then the platform must use SIQ_ServiceRemoved and SIQ_TransportChanged.

Parameters

H_SiqInstance	siq SIQ instance handle.
U8BIT*	dptr PAT section data

Returns: none.

Definition at line 301 of file siq_cache.c.

Macros

Typedefs

Functions

Detailed Description

Function Documentation