source: tools/oebuild/data/pti_np/pti_session.c @ 45168

#include "pti.h"
#include "pti_main.h"
#include "pti_session.h"

static u32 St20ToTcRamAddress(u32 SomeSt20Address, STPTI_TCParameters_t *TC_Params_p)
{
        return ((u32)((u8 *)SomeSt20Address - (u8 *)TC_Params_p->TC_DataStart + (u8 *)TC_DSRAM_BASE));
}

void pti_session_set_source(int index, int tsmerger_tag)
{
        TCSessionInfo_t *TCSessionInfo_p = &((TCSessionInfo_t *)tc_params.TC_SessionDataStart)[index];
        if (tsmerger_tag != STPTI_STREAM_ID_NONE)
        {
                // check the usage of the given stream ID
                // there must be no other session using the same TS input stream
                // otherwise the setting would disturb data arrival for all sessions
                int i;
                for (i = 0; i < tc_params.TC_NumberOfSessions; i++)
                {
                        TCSessionInfo_p = &((TCSessionInfo_t *)tc_params.TC_SessionDataStart)[i];
                        if (((readw(&TCSessionInfo_p->SessionTSmergerTag) &
                                        ~SESSION_USE_MERGER_FOR_STC) == tsmerger_tag) && (i != index))
                        {
                                // source already in use
                                printk("%s(%d,%x): ERROR STREAM ALREADY IN USE (%d)\n", __func__, index, tsmerger_tag, i);
                                return;
                        }
                }
        }
        TCSessionInfo_p = &((TCSessionInfo_t *)tc_params.TC_SessionDataStart)[index];
        STSYS_WriteTCReg16LE(&TCSessionInfo_p->SessionTSmergerTag,
                             tsmerger_tag | SESSION_USE_MERGER_FOR_STC);
}

/* **************************************
 * Init Session and return session number
 */
int pti_session_init(int tsmerger_tag, int slotOffset, int numberSlots)
{
        STPTI_TCParameters_t *TC_Params_p = &tc_params;
        TCSessionInfo_t *TCSessionInfo_p;
        u16 SlotsToAllocate;
        u16 BytesToAllocate;
        int session;
        //u8 numfilters;
        //int numblocks, filtermode, filtersperblock=SF_NUM_FILTERS_PER_BLOCK;
        // ******************************************
        //stptiHAL_PeekNextFreeSession(FullHandle_t DeviceHandle)
        for (session = 0; session < TC_Params_p->TC_NumberOfSessions; session++)
        {
                TCSessionInfo_p = &((TCSessionInfo_t *)TC_Params_p->TC_SessionDataStart)[session];
                if (readw((void *)&TCSessionInfo_p->SessionTSmergerTag) == SESSION_NOT_ALLOCATED)
                {
                        printk("Free session: %d\n", session);
                        break;
                }
        }
        if (session == TC_Params_p->TC_NumberOfSessions)
        {
                printk("No free session !!!!!!!!!!!!!!!!\n");
                return -1;
        }
        else
        {
                printk("Using session %d\n", session);
        }
        // ******************************************************
        //stptiHAL_GetNextFreeSession(FullHandle_t DeviceHandle)
        TCSessionInfo_p = &((TCSessionInfo_t *)TC_Params_p->TC_SessionDataStart)[session];
        pti_session_set_source(session, tsmerger_tag);
        // ********************************************************************
        //stptiHelper_TCInit_SessionInfoModeFlags( FullHandle_t DeviceHandle )
        /* Set DiscardSynchByte bit in the global data structure if STPTI has been initialised with this option */
        /* See DDTS GNBvd08680 PJW */
        // if ( (Device_p->TCCodes == STPTI_SUPPORTED_TCCODES_SUPPORTS_DVB)
        /* DVB has a 1 byte header (the sync byte) */
        STSYS_SetTCMask16LE((void *)&TCSessionInfo_p->SessionModeFlags, (TC_GLOBAL_DATA_DISCARD_SYNC_BYTE_SET));
        STSYS_WriteTCReg16LE((void *)&TCSessionInfo_p->SessionDiscardParams, 1);
        // ********************************************************
        //stptiHelper_SlotList_Alloc( FullHandle_t DeviceHandle )
        SlotsToAllocate = numberSlots;
        BytesToAllocate = SlotsToAllocate * 2;
        STSYS_WriteTCReg16LE((void *)&TCSessionInfo_p->SessionPIDFilterStartAddr, St20ToTcRamAddress((u32)TC_Params_p->TC_LookupTableStart + slotOffset * 2, TC_Params_p));
        STSYS_WriteTCReg16LE((void *)&TCSessionInfo_p->SessionPIDFilterLength, SlotsToAllocate);
        // *****************************************************************
        //TcCam_FilterAllocateSession( FullHandle_t DeviceHandle )
        // case STPTI_FILTER_OPERATING_MODE_NONE:
        /* invalid filter mode i.e. all bits set - TC_SESSION_INFO_FILTER_TYPE_FIELD */
        STSYS_WriteTCReg16LE((void *)&TCSessionInfo_p->SessionSectionParams,
                             TC_SESSION_INFO_FILTER_TYPE_FIELD);
        STSYS_SetTCMask16LE((void *)&TCSessionInfo_p->SessionSectionParams, TC_SESSION_DVB_PACKET_FORMAT);
        STSYS_SetTCMask16LE((void *)&TCSessionInfo_p->SessionSectionParams, TC_SESSION_INFO_FORCECRCSTATE | TC_SESSION_INFO_DISCARDONCRCERROR);
        /* nothing allocated yet, so nothing enabled from our FilterList_p[n] */
        writel(0, (void *)&TCSessionInfo_p->SectionEnables_0_31);
        writel(0, (void *)&TCSessionInfo_p->SectionEnables_32_63);
#if defined(SECURE_LITE2)
        writel(0, (void *)&TCSessionInfo_p->SectionEnables_64_95);
        writel(0, (void *)&TCSessionInfo_p->SectionEnables_96_127);
#endif
        /* --- setup TC RAM CAM configuration --- */
        //STSYS_WriteTCReg16LE((void*)&TCSessionInfo_p->SessionCAMConfig, CAM_CFG_64_FILTERS );
        /* --- setup TC RAM CAM base address --- */
        /* Note: SessionCAMFilterStartAddr is at bit position 7:1 (7 bits) */
        /* point to just past start of reserved area (0x304) */
        //fixme: dies wird nur beim ersten mal gesetzt (siehe if abfrage im original,
        //ansonsten wird was anderes gemacht!)
        //STSYS_WriteTCReg16LE((void*)&TCSessionInfo_p->SessionCAMFilterStartAddr, (0xC1 << 1) ); /* 0x182 */
        return session;
}