FreeCalypso > hg > fc-magnetite
view src/cs/layer1/cmacs/macs.c @ 302:0740b5ff15f6
reconstructed L1_GPRS source imported from tcs211-l1-reconst
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 31 Oct 2017 03:42:35 +0000 |
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/************* Revision Control System Header ************* * GSM Layer 1 software * MACS.C * * Filename macs.c * Copyright 2003 (C) Texas Instruments * ************* Revision Control System Header *************/ //---Configuration flags--------------------------------------------------- #define TFI_FILTERING 1 // TFI FILTERING activated if set to 1 //------------------------------------------------------------------------- #include <stdlib.h> #include <stdio.h> #include "l1_macro.h" #include "l1_confg.h" #if L1_GPRS #include "l1_types.h" #include "l1_const.h" #if TESTMODE #include "l1tm_defty.h" #include "l1tm_varex.h" #endif #if (AUDIO_TASK == 1) #include "l1audio_const.h" #include "l1audio_cust.h" #include "l1audio_defty.h" #endif #if (L1_GTT == 1) #include "l1gtt_const.h" #include "l1gtt_defty.h" #endif #if (L1_MP3 == 1) #include "l1mp3_defty.h" #endif #if (L1_MIDI == 1) #include "l1midi_defty.h" #endif #include "l1_defty.h" #include "l1_varex.h" #include "l1_signa.h" #include "l1p_cons.h" #include "l1p_msgt.h" #include "l1p_deft.h" #include "l1p_vare.h" #include "l1p_sign.h" #include "macs_def.h" #include "macs_cst.h" #include "macs_var.h" #if FF_TBF #include "l1_trace.h" #if (CODE_VERSION == SIMULATION) #include "sim_cons.h" #include "sim_def.h" #include "sim_var.h" #endif #endif /**********************************************************/ /* MACS-S Prototypes */ /**********************************************************/ void l1ps_macs_meas (void); // Measurement gap processing void l1ps_macs_header_decoding (UWORD8 rx_no, UWORD8 *tfi_result, UWORD8 *pr); // MAC header decoding void l1ps_macs_read (UWORD8 pr_table[8]); // MAC-S control tasks processing void l1ps_macs_ctrl (void); // MAC-S read tasks processing void l1ps_macs_init (void); // MAC-S initialization #if FF_TBF void l1ps_macs_rlc_uplink_info (void); #endif /**********************************************************/ /* EXTERNAL Prototypes */ /**********************************************************/ void l1pddsp_transfer_mslot_ctrl(UWORD8 burst_nb, UWORD8 dl_bitmap, UWORD8 ul_bitmap, UWORD8 *usf_table, UWORD8 mac_mode, UWORD8 *ul_buffer_index, UWORD8 tsc, UWORD16 radio_freq, UWORD8 synchro_timeslot, #if FF_L1_IT_DSP_USF UWORD8 dsp_usf_interrupt #else UWORD8 usf_vote_enable #endif ); /* RLC interface for uplink RLC/MAC blocks */ /*-----------------------------------------*/ void rlc_uplink( UWORD8 assignment_id, UWORD8 tx_data_no, // Number of timeslot that can be used // for uplink data block transfer UWORD32 fn, // Next frame number UWORD8 timing_advance_value, // Timing advance (255 if unknown) API *ul_poll_response, // Pointer on a_pu_gprs (NDB): poll response blocks API *ul_data, // Pointer on a_du_gprs (NDB): uplink data blocks BOOL allocation_exhausted // Set to 1 if fixed allocation exhausted ); #if TESTMODE void l1tm_rlc_uplink(UWORD8 tx, API *ul_data); #endif /* RLC interface for downlink RLC/MAC blocks */ /*-------------------------------------------*/ #if FF_TBF void rlc_downlink_data( UWORD8 assignment_id, UWORD32 fn, // Actual frame number API *dl // Pointer on a_dd_gprs (NDB): downlink blocks ); void rlc_uplink_info( UWORD8 assignment_id, UWORD32 fn, UWORD8 rlc_blocks_sent, // Number of uplink blocks that was transmitted // during the last block period UWORD8 last_poll_response // Status of the poll responses of ); // the last block period UWORD8 rlc_downlink_copy_buffer(UWORD8 isr); #else void rlc_downlink( UWORD8 assignment_id, UWORD32 fn, // Actual frame number API *dl, // Pointer on a_dd_gprs (NDB): downlink blocks UWORD8 rlc_blocks_sent, // Number of uplink blocks that was transmitted // during the last block period UWORD8 last_poll_response // Status of the poll responses of // the last block period ); #endif #if (TRACE_TYPE==1) || (TRACE_TYPE==4) #include "l1_trace.h" #endif #if FF_TBF #include <stddef.h> #if (CODE_VERSION == SIMULATION) API* const A_DD_XGPRS[1][4] = { {&buf.ndb_gprs.a_dd_gprs[0][0], &buf.ndb_gprs.a_dd_gprs[1][0], &buf.ndb_gprs.a_dd_gprs[2][0], &buf.ndb_gprs.a_dd_gprs[3][0]}, }; API* const A_DU_XGPRS[1][4] = { {&buf.ndb_gprs.a_du_gprs[0][0], &buf.ndb_gprs.a_du_gprs[1][0], &buf.ndb_gprs.a_du_gprs[2][0], &buf.ndb_gprs.a_du_gprs[3][0]} }; #else API* const A_DD_XGPRS[1][4] = { { (API*)(NDB_ADR_GPRS + offsetof(T_NDB_MCU_DSP_GPRS, a_dd_gprs[0][0])), (API*)(NDB_ADR_GPRS + offsetof(T_NDB_MCU_DSP_GPRS, a_dd_gprs[1][0])), (API*)(NDB_ADR_GPRS + offsetof(T_NDB_MCU_DSP_GPRS, a_dd_gprs[2][0])), (API*)(NDB_ADR_GPRS + offsetof(T_NDB_MCU_DSP_GPRS, a_dd_gprs[3][0])) } }; API* const A_DU_XGPRS[1][4] = { { (API*)(NDB_ADR_GPRS + offsetof(T_NDB_MCU_DSP_GPRS,a_du_gprs[0][0])), (API*)(NDB_ADR_GPRS + offsetof(T_NDB_MCU_DSP_GPRS,a_du_gprs[1][0])), (API*)(NDB_ADR_GPRS + offsetof(T_NDB_MCU_DSP_GPRS,a_du_gprs[2][0])), (API*)(NDB_ADR_GPRS + offsetof(T_NDB_MCU_DSP_GPRS,a_du_gprs[3][0])) } }; #endif #endif /*-----------------------------------------------------------*/ /* l1ps_macs_init() */ /*-----------------------------------------------------------*/ /* Parameters: */ /* */ /* Return: */ /* */ /* Description: This function initializes MAC-S variables */ /* and must be called before the first call */ /* of MAC-S */ /*-----------------------------------------------------------*/ void l1ps_macs_init(void) { UWORD8 i; #if FF_TBF macs.dl_buffer_index = INVALID; for (i=0;i<NBR_SHARED_BUFFER_RLC;i++) macs.rlc_dbl_buffer[i].d_rlcmac_rx_no_gprs = 0xff; #endif /* General TBF parameters processed by MAC-S */ /*********************************************/ macs.sti_block_id = 0; /* Ressources allocated by MAC-S */ /*********************************************/ macs.rx_allocation = 0; macs.tx_allocation = 0; macs.tx_prach_allocation = 0; macs.tx_data = 0; macs.pwr_allocation = 0xff; macs.last_rx_alloc = 0; #if FF_L1_IT_DSP_USF macs.dsp_usf_interrupt = 0; #endif macs.rx_blk_period = NO_DL_BLK; macs.rlc_blocks_sent = 0; macs.rx_no = 0; macs.last_poll_response = 0; macs.usf_good = 0; macs.usf_vote_enable = 0; macs.tra_gap = 8; macs.fix_alloc_exhaust = FALSE; macs.next_usf_mon_block[0] = macs.next_usf_mon_block[1] = 0; for (i = 0; i < TS_NUMBER; i ++) { macs.ul_buffer_index[i] = INVALID; } #if L1_EDA for (i = 0; i < 4; i++) { macs.monitored_ts[i] = INVALID; } macs.rx_monitored = 0; macs.last_rx_monitored = 0; macs.lowest_poll_ts = INVALID; #endif #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) // Reset PDTCH trace structure for(i=0; i<8; i++) { trace_info.pdtch_trace.dl_status[i] = 0; trace_info.pdtch_trace.ul_status[i] = 0; trace_info.pdtch_trace.blk_status = 0; } #endif } /* End of l1ps_macs_init */ /*-----------------------------------------------------------*/ /* l1ps_macs_ctrl() */ /*-----------------------------------------------------------*/ /* Parameters:global l1ps_macs_com changed */ /* global l1s unchanged */ /* global l1a_l1s_com unchanged */ /* global l1ps_dsp_com changed */ /* */ /* Return: */ /* */ /* Description: MAC_S manages the timeslot allocation for */ /* downlink and uplink transfer and assign a */ /* measurement gap according to the MS class, */ /* the frame number when it's called and the */ /* allocation information given by Layer 1. */ /* It also program the corresponding tasks on */ /* the DSP and asks the RLC layer for uplink */ /* blocks */ /*-----------------------------------------------------------*/ void l1ps_macs_ctrl(void) { #define NDB_PTR l1ps_dsp_com.pdsp_ndb_ptr #define SET_PTR l1pa_l1ps_com.transfer.aset #if MACS_STATUS // No error l1ps_macs_com.macs_status.nb = 0; #endif /***********************************************************/ /* USF values updating in dynamic mode (first frames of */ /* block periods) */ /***********************************************************/ if ((SET_PTR->allocated_tbf == UL_TBF) || (SET_PTR->allocated_tbf == BOTH_TBF)) { #if L1_EDA if ((SET_PTR->mac_mode == DYN_ALLOC) || (SET_PTR->mac_mode == EXT_DYN_ALLOC)) #else if (SET_PTR->mac_mode == DYN_ALLOC) #endif { // Test if the USF must be read in the current frame // Concern the first frames of each block period (useful when // some USF values weren't valid the frame before) // FN 13 // 0 1 2 3 4 5 6 7 8 9 10 11 12 // ---------------------------------------------------------- // || B0 || B1 || B2 || I || // || | | | || | X | | || | X | | || || // ---------------------------------------------------------- // X:USF Reading #if FF_L1_IT_DSP_USF if (l1ps_macs_com.usf_status == USF_IT_DSP) #else if ( (l1s.next_time.fn_mod13 == 5) || (l1s.next_time.fn_mod13 == 9)) #endif { // USF values are read // Uplink timeslots whose USF was INVALID the frame before are de-allocated // if their USF value is now BAD UWORD8 tn; // Reading of the d_usf_updated_gprs value API usf_updated = NDB_PTR->d_usf_updated_gprs; #if !L1_EDA // For each timeslot that can be allocated in uplink... for (tn = macs.first_monitored_ts; tn <= macs.last_monitored_ts; tn ++) { // If USF vote was enabled on this timeslot if(macs.usf_vote_enable & (MASK_SLOT0 >> tn)) { // Clear the USF vote flag macs.usf_vote_enable &= ~(MASK_SLOT0 >> tn); // Read USF value if (((usf_updated >> ((MAX_TS_NB - tn) * 2)) & MASK_2SLOTS) == USF_GOOD) { // This timeslot is valid and good macs.usf_good |= (UWORD8) (MASK_SLOT0 >> (tn + 3)); macs.next_usf_mon_block[tn - macs.first_monitored_ts] = l1s.next_time.block_id + USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]; } else { // This timeslot is bad or invalid // If the slot was allocated for data if (macs.tx_data & (MASK_SLOT0 >> (tn + RXTX_DELAY))) { // rlc_blocks_sent decremented macs.rlc_blocks_sent --; #if FF_L1_IT_DSP_USF // If next timeslot is also a data block: // Shift data block to next TX opportunity. For MS class 12 // with dynamic allocation, 2 TX data max and they are // contiguous (optimization). if (macs.tx_data & (MASK_SLOT0 >> (tn + 1 + RXTX_DELAY))) { macs.ul_buffer_index[tn + 1 + RXTX_DELAY] = macs.ul_buffer_index[tn + RXTX_DELAY]; } // Cancel burst macs.ul_buffer_index[tn + RXTX_DELAY] = INVALID; #endif // FF_L1_IT_DSP_USF #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) trace_info.pdtch_trace.ul_status[tn + RXTX_DELAY] = 0; #endif #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4) RTTL1_FILL_MACS_STATUS(TX_CANCELLED_USF, tn) #endif } } } // End if "USF vote enabled on this timeslot" } // End for /* Uplink resources de-allocated by the DSP are de-allocated by MAC-S */ macs.tx_allocation &= (UWORD8) (macs.usf_good | ~macs.tx_data); macs.tx_data &= (UWORD8) (macs.usf_good | ~macs.tx_data); #else //#if !L1_EDA UWORD8 i = 0; //for all timeslots that need to be monitored while ((macs.monitored_ts[i] != INVALID) && (i <= 3)) { // If USF vote was enabled on this timeslot if(macs.usf_vote_enable & (MASK_SLOT0 >> macs.monitored_ts[i])) { // Clear the USF vote flag macs.usf_vote_enable &= ~(MASK_SLOT0 >> macs.monitored_ts[i]); // Read USF value if ((((usf_updated >> ((MAX_TS_NB - macs.monitored_ts[i]) * 2)) & MASK_2SLOTS) == USF_GOOD) && (macs.last_rx_monitored & (MASK_SLOT0 >> macs.monitored_ts[i]))) { if (SET_PTR->mac_mode == EXT_DYN_ALLOC) { //RX timeslots to monitor have to be updated upon USF status receipt (only first ts with //good USF has to be considered) if ((macs.monitored_ts[i] <= macs.lowest_poll_ts) || ((MASK_SLOT0 >> macs.monitored_ts[i]) & macs.rx_allocation)) macs.rx_monitored |= (UWORD8) (MASK_SLOT0 >> macs.monitored_ts[i]); // Clear the USF vote flag macs.usf_vote_enable = 0; //if the USF value is GOOD all remaining timelots that needed to be monitored //have to be considered as having GOOD USFs while ((macs.monitored_ts[i] != INVALID) && (i <= 3)) { // Update good USFs bitmap macs.usf_good |= (UWORD8) (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY)); i++; } macs.next_usf_mon_block[0] = l1s.next_time.block_id + USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]; break; } else { // This timeslot is valid and good macs.usf_good |= (UWORD8) (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY)); macs.next_usf_mon_block[macs.monitored_ts[i] - macs.first_monitored_ts] = l1s.next_time.block_id + USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]; } } else //USF is BAD or INVALID { //The TDMA before USF status was not known so USF was supposed to be GOOD but // now it turns out to be BAD or INVALID so block is deallocated. if (macs.tx_data & (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY))) { UWORD8 j; // rlc_blocks_sent decremented macs.rlc_blocks_sent --; tn = macs.monitored_ts[i]; #if FF_L1_IT_DSP_USF //For all monitored ts (beginning with last one), if the timeslot is a data block then //data block is shifted to next monitored ts. j=3; while (macs.monitored_ts[j] != tn) { if ((macs.monitored_ts[j] != INVALID) && (macs.tx_data & (MASK_SLOT0 >> (macs.monitored_ts[j] + RXTX_DELAY)))) { macs.ul_buffer_index[macs.monitored_ts[j] + RXTX_DELAY] = macs.ul_buffer_index[macs.monitored_ts[j-1] + RXTX_DELAY]; #if L1_EGPRS macs.tx_modulation &= ~(MASK_SLOT0 >> (macs.monitored_ts[j] + RXTX_DELAY)); macs.tx_modulation |= ((macs.tx_modulation & (MASK_SLOT0 >> (macs.monitored_ts[j-1] + RXTX_DELAY))) >> (macs.monitored_ts[j]-macs.monitored_ts[j-1])); #endif // L1_EGPRS } j--; } // Cancel burst macs.ul_buffer_index[tn + RXTX_DELAY] = INVALID; #if L1_EGPRS macs.tx_modulation &= ~(MASK_SLOT0 >> (tn + RXTX_DELAY)); #endif // L1_EGPRS #endif // FF_L1_IT_DSP_USF }//if (macs.tx_data & (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY))) if (SET_PTR->mac_mode == EXT_DYN_ALLOC) { //USF for current timeslot is BAD so it has to be monitored for next USF //period if ((macs.monitored_ts[i] <= macs.lowest_poll_ts) || ((MASK_SLOT0 >> macs.monitored_ts[i]) & macs.rx_allocation)) macs.rx_monitored |= (UWORD8) (MASK_SLOT0 >> macs.monitored_ts[i]); } } }//if(macs.usf_vote_enable & (MASK_SLOT0 >> macs.monitored_ts[i])) i++; }//while ((macs.monitored_ts[i] != INVALID) && (i <= 3)) if (SET_PTR->mac_mode == EXT_DYN_ALLOC) { // Downlink monitoring is updated depending on USF status macs.rx_allocation |= macs.rx_monitored; } // Uplink resources de-allocated by the DSP are de-allocated by MAC-S macs.tx_allocation &= (UWORD8) (macs.usf_good | ~macs.tx_data); macs.tx_data &= (UWORD8) (macs.usf_good | ~macs.tx_data); #endif //#if !L1_EDA // Measurement gap processing l1ps_macs_meas(); } // End if FN13 = 4 OR 8 } // End if dynamic allocation mode } // End if uplink TBF #if FF_L1_IT_DSP_USF if (l1ps_macs_com.usf_status != USF_IT_DSP) { #endif /************************************************************/ /***** RESSOURCE ALLOCATION FOR THE NEXT BLOCK PERIOD *****/ /************************************************************/ // If the next frame is the first of a block period // FN 13 // 0 1 2 3 4 5 6 7 8 9 10 11 12 // ---------------------------------------------------------- // || B0 || B1 || B2 || I || // || X | | | || X | | | || X | | | || || // ---------------------------------------------------------- if ( (l1s.next_time.fn_mod13 == 4) || (l1s.next_time.fn_mod13 == 8) || (l1s.next_time.fn_mod13 == 0)) { UWORD8 tx = 0; // MS class Tx parameter checked UWORD8 rx = 0; // MS class Rx parameter checked UWORD8 tx_no; // Number of allocated uplink timeslots UWORD8 highest_ul_ts; // Highest numbered allocated uplink resource UWORD8 lowest_ul_ts; // Lowest numbered allocated uplink resource UWORD8 highest_dl_ts; // Highest numbered allocated uplink resource UWORD8 lowest_dl_ts; // Lowest numbered allocated uplink resource UWORD8 tra_before_frame; // Number of free Tx slots at the end of the // previous frame /***********************************************************/ /* New allocated ressources */ /***********************************************************/ /*---------------------------------------------------------*/ /* New assignment or synchronization change */ /*---------------------------------------------------------*/ if ( (l1ps_macs_com.new_set != FALSE) || (l1a_l1s_com.dl_tn != macs.old_synchro_ts)) { UWORD8 tn; UWORD8 fn_mod13; UWORD32 fn_div13; /* Fixed allocation mode initialization */ /*--------------------------------------*/ if (SET_PTR->mac_mode == FIX_ALLOC_NO_HALF) { if (((SET_PTR->assignment_command == UL_TBF) || (SET_PTR->assignment_command == BOTH_TBF)) && (l1ps_macs_com.new_set)) { // Starting time block ID processing fn_div13 = (UWORD32) (SET_PTR->tbf_sti.absolute_fn / 13); // FN / 13 fn_mod13 = (UWORD8) (SET_PTR->tbf_sti.absolute_fn - (fn_div13 * 13)); // FN mod 13 macs.sti_block_id = (UWORD32) ( (3 * (UWORD32) fn_div13) // Block ID + (fn_mod13 / 4)); // Starting time not aligned on a block period if ((fn_mod13 != 0) && (fn_mod13 != 4) && (fn_mod13 != 8) && (fn_mod13 != 12)) macs.sti_block_id ++; // Reset the fixed allocation bitmap exhaustion flag only in case of a new assignment macs.fix_alloc_exhaust = FALSE; } } // End of fixed mode initialization else #if L1_EDA /* Extended Dynamic/Dynamic allocation mode initialization */ /*------------------------------------------*/ if ((SET_PTR->mac_mode == DYN_ALLOC) || (SET_PTR->mac_mode == EXT_DYN_ALLOC)) #else /* Dynamic allocation mode initialization */ /*------------------------------------------*/ if (SET_PTR->mac_mode == DYN_ALLOC) #endif { if ((SET_PTR->assignment_command == UL_TBF) || (SET_PTR->assignment_command == BOTH_TBF) || (l1a_l1s_com.dl_tn != macs.old_synchro_ts)) { // USF value aren't kept macs.usf_good = 0; macs.usf_vote_enable = 0; // No USF vote macs.rx_blk_period = NO_DL_BLK; if (l1ps_macs_com.new_set) // USF monitoring block set to current block to immediately enable // the USF monitoring in case of new UL TBF macs.next_usf_mon_block[0] = macs.next_usf_mon_block[1] = l1s.next_time.block_id; // First and last allocated Tx number updating macs.first_monitored_ts = INVALID; macs.last_monitored_ts = INVALID; tn = 0; // Search of the lowest timeslot allocated in uplink while ( !(SET_PTR->ul_tbf_alloc->timeslot_alloc & (MASK_SLOT0 >> tn)) && (tn < TS_NUMBER)) tn ++; if (tn != TS_NUMBER) { macs.first_monitored_ts = tn - l1a_l1s_com.dl_tn; tn = MAX_TS_NB; // Search of the highest timeslot allocated in uplink while (!(SET_PTR->ul_tbf_alloc->timeslot_alloc & (MASK_SLOT0 >> tn))) tn --; macs.last_monitored_ts = tn - l1a_l1s_com.dl_tn; #if L1_EDA //Extended Dynamic or Dynamic Allocation has been set { UWORD8 i=0; macs.rx_monitored = 0; //Search among the timeslots allocated in uplink, the timeslots that are really //allocated (macs.first_monitored_ts and macs.last_monitored_ts are for sure //allocated but the allocation can have holes inbetween) for (i = 0; i < 4; i++) { macs.monitored_ts[i] = INVALID; } i = 0; for (tn = macs.first_monitored_ts; tn <= macs.last_monitored_ts; tn++) { //Find the ts that are allocated and need therefore to be monitored if (((SET_PTR->ul_tbf_alloc->timeslot_alloc & (MASK_SLOT0 >> (tn + l1a_l1s_com.dl_tn))) && (SET_PTR->mac_mode == EXT_DYN_ALLOC)) || (SET_PTR->mac_mode == DYN_ALLOC)) { macs.monitored_ts[i]= tn; i++; } } } #endif //#if L1_EDA } } #if L1_EDA if((SET_PTR->mac_mode == EXT_DYN_ALLOC)) l1ps_macs_com.fb_sb_task_detect = TRUE; else l1ps_macs_com.fb_sb_task_detect = FALSE; #endif } // End of dynamic mode initialization /* Reset of new_set */ /*------------------*/ l1ps_macs_com.new_set = FALSE; } // End of new allocation /*---------------------------------------------------------*/ /* Resource initialization */ /*---------------------------------------------------------*/ macs.pwr_allocation = 0; // Power measurements macs.rx_allocation = 0; // Rx allocation macs.tx_allocation = 0; // Tx allocation macs.tx_data = 0; // Tx data allocation macs.tx_prach_allocation = 0; // Tx PRACH allocation #if FF_L1_IT_DSP_USF macs.dsp_usf_interrupt = 0; // DSP interrupt for USF decoding needed #endif /***********************************************************/ /* Downlink TBF processing */ /***********************************************************/ if ((SET_PTR->allocated_tbf == DL_TBF) || (SET_PTR->allocated_tbf == BOTH_TBF)) { /* Downlink resources are allocated */ macs.rx_allocation = (UWORD8) ( SET_PTR->dl_tbf_alloc.timeslot_alloc << l1a_l1s_com.dl_tn); } /* End if downlink TBF processing */ /***********************************************************/ /* Uplink TBF processing */ /***********************************************************/ if ((SET_PTR->allocated_tbf == UL_TBF) || (SET_PTR->allocated_tbf == BOTH_TBF)) { /*---------------------------------------------------------*/ /* Dynamic allocation mode */ /*---------------------------------------------------------*/ #if L1_EDA if ((SET_PTR->mac_mode == DYN_ALLOC) || (SET_PTR->mac_mode == EXT_DYN_ALLOC)) #else if (SET_PTR->mac_mode == DYN_ALLOC) #endif { UWORD8 i; UWORD8 tn; API usf_updated; #if !L1_EDA /* Downlink resource monitoring */ /*------------------------------*/ macs.rx_allocation |= (UWORD8) ( SET_PTR->ul_tbf_alloc->timeslot_alloc << l1a_l1s_com.dl_tn); /* USF values reading */ /*--------------------*/ // An uplink timeslot is allocated by MAC-S if it's allocated by the network and // - USF is updated and good // OR - USF isn't updated // Reading of the d_usf_updated_gprs value usf_updated = NDB_PTR->d_usf_updated_gprs; // For each timeslot that can be allocated in uplink... for (tn = macs.first_monitored_ts; tn <= macs.last_monitored_ts; tn ++) { UWORD8 tn_usf; WORD32 delta; // Remaining blocks before a new USF reading delta = (WORD8) (macs.next_usf_mon_block[tn - macs.first_monitored_ts] - l1s.next_time.block_id); // MAX_FN modulo if (delta <= 0) delta += MAX_BLOCK_ID; if (delta >= USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]) { // USF no more usable // Clear USF in good USFs bitmap macs.usf_good &= (UWORD8) ~(MASK_SLOT0 >> (tn + 3)); // Clear USF vote macs.usf_vote_enable &= (UWORD8) ~(MASK_SLOT0 >> tn); // If downlink blocks were entirely received during the last block period if (macs.rx_blk_period == l1s.next_time.block_id) { // Read USF tn_usf = (UWORD8) ((usf_updated >> ((MAX_TS_NB - tn) << 1)) & MASK_2SLOTS); if (tn_usf == USF_GOOD) { // Update good USFs bitmap macs.usf_good |= (UWORD8) (MASK_SLOT0 >> (tn + 3)); macs.next_usf_mon_block[tn - macs.first_monitored_ts] = l1s.next_time.block_id + USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]; } else if ((tn_usf == USF_INVALID) && (l1s.next_time.fn_mod13 != 0)) { // Unknown USF: // - TPU is programmed to tranmit a block on timeslot tn // - DSP will set the TX PWR to 0 for this timeslot is USF is bad // (USF vote mechanism) macs.tx_allocation |= (MASK_SLOT0 >> (tn + 3)); macs.usf_vote_enable |= (MASK_SLOT0 >> tn); } } // End if "downlink block entirely received" } // End if "USF no more usable" } // End for #else //#if !L1_EDA { UWORD8 tn_usf; WORD32 delta; UWORD8 i=0; if (SET_PTR->mac_mode == DYN_ALLOC) { /* Downlink resource monitoring */ /*------------------------------*/ macs.rx_allocation |= (UWORD8) ( SET_PTR->ul_tbf_alloc->timeslot_alloc << l1a_l1s_com.dl_tn); macs.last_rx_monitored = macs.rx_allocation; } else { // Remaining blocks before a new USF reading delta = (WORD8) (macs.next_usf_mon_block[0] - l1s.next_time.block_id); // MAX_FN modulo if (delta <= 0) delta += MAX_BLOCK_ID; //Save last rx_monitored timeslots macs.last_rx_monitored = macs.rx_monitored; //for all timeslots to monitor (timeslots allocated in UL) for (tn = macs.first_monitored_ts; tn <= macs.last_monitored_ts; tn++) { //All possible timeslots to monitor have to be monitored // (USF validity period exhausted) if (macs.monitored_ts[i] != INVALID) macs.rx_monitored |= (MASK_SLOT0 >> macs.monitored_ts[i]); i++; } //USF validity period is exhausted if (delta >= USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]) { //USF need to be evaluated for next block period macs.usf_good = 0; } else { //Set monitored ts again if poll occured on one ts during a block granularity period = 4 //note: macs.usf_good is always different from 0 i=0; while (!(macs.usf_good & (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY)))) i++; macs.rx_monitored &= (UWORD8) ~(MASK_ALL_SLOTS >> macs.monitored_ts[i+1]); } } // Reading of the d_usf_updated_gprs value usf_updated = NDB_PTR->d_usf_updated_gprs; i=0; //for all possible timeslots to monitor while ((macs.monitored_ts[i] != INVALID) && (i <= 3)) { if (SET_PTR->mac_mode == DYN_ALLOC) { // Remaining blocks before a new USF reading delta = (WORD8) (macs.next_usf_mon_block[macs.monitored_ts[i] - macs.first_monitored_ts] - l1s.next_time.block_id); // MAX_FN modulo if (delta <= 0) delta += MAX_BLOCK_ID; } //USF validity period is exhausted if (delta >= USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]) { if (SET_PTR->mac_mode == DYN_ALLOC) { // USF no more usable // Clear USF in good USFs bitmap macs.usf_good &= (UWORD8) ~(MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY)); // Clear USF vote macs.usf_vote_enable &= (UWORD8) ~(MASK_SLOT0 >> macs.monitored_ts[i]); } if ((macs.rx_blk_period == l1s.next_time.block_id) && (macs.last_rx_monitored & (MASK_SLOT0 >> macs.monitored_ts[i]))) { #if L1_EGPRS // EGPRS switched radio loopback sub mode on: dynamic allocation // but USF are always deemed to be good if (l1ps_macs_com.loop_param.sub_mode == TRUE) tn_usf = USF_GOOD; else #endif // Read USF tn_usf = (UWORD8) ((usf_updated >> ((MAX_TS_NB - macs.monitored_ts[i]) << 1)) & MASK_2SLOTS); if (tn_usf == USF_GOOD) { if (SET_PTR->mac_mode == EXT_DYN_ALLOC) { //Deallocate monitored ts macs.rx_monitored &= (UWORD8) ~(MASK_ALL_SLOTS >> macs.monitored_ts[i+1]); //As USF is good for current monitored ts, all subsequent monitored ts have //to be deallocated and the associated USF set to USF_GOOD while ((macs.monitored_ts[i] != INVALID) && (i <= 3)) { //Update good USFs bitmap macs.usf_good |= (UWORD8) (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY)); i++; } macs.next_usf_mon_block[0] = l1s.next_time.block_id + USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]; break; } else { // Update good USFs bitmap macs.usf_good |= (UWORD8) (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY)); macs.next_usf_mon_block[macs.monitored_ts[i] - macs.first_monitored_ts] = l1s.next_time.block_id + USF_BLOCK_GRANULARITY[SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_granularity]; } } else if ((tn_usf == USF_INVALID) && (l1s.next_time.fn_mod13 != 0)) { if (SET_PTR->mac_mode == EXT_DYN_ALLOC) { //Deallocate monitored ts macs.rx_monitored &= (UWORD8) ~(MASK_ALL_SLOTS >> macs.monitored_ts[i+1]); //As USF is invalid (status of USF not yet known) for current monitored ts, the USF is //supposed to be good and therefore Tx is allocated and all subsequent monitored ts //have to be deallocated. Vote mechanism is also enabled for these latter timeslots. while ((macs.monitored_ts[i] != INVALID) && (i <= 3)) { macs.tx_allocation |= (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY)); macs.usf_vote_enable |= (MASK_SLOT0 >> macs.monitored_ts[i]); i++; } break; } else { // Unknown USF: // - TPU is programmed to tranmit a block on timeslot tn // - DSP will set the TX PWR to 0 for this timeslot is USF is bad // (USF vote mechanism) macs.tx_allocation |= (MASK_SLOT0 >> (macs.monitored_ts[i] + RXTX_DELAY)); macs.usf_vote_enable |= (MASK_SLOT0 >> macs.monitored_ts[i]); } } }//if ((macs.rx_blk_period == l1s.next_time.block_id) && (macs.last_rx_monitored & (MASK_SLOT0 >> macs.monitored_ts[i]))) } i++; }//while ((tn != INVALID) && (i <= 3)) }//if (SET_PTR->mac_mode == EXT_DYN_ALLOC) /* Downlink resource monitoring */ /*------------------------------*/ macs.rx_allocation |= macs.rx_monitored; #endif //#if !L1_EDA /* Uplink resources allocation according to USF values */ /*-----------------------------------------------------*/ i = l1a_l1s_com.dl_tn - RXTX_DELAY; if (i < TS_NUMBER) { macs.tx_allocation |= (UWORD8) ( macs.usf_good & (SET_PTR->ul_tbf_alloc->timeslot_alloc << i)); } else { macs.tx_allocation |= (UWORD8) ( macs.usf_good & (SET_PTR->ul_tbf_alloc->timeslot_alloc >> (-i))); } #if L1_EDA //if FB/SB activity detected in comming idle frame, some TX burst have to be deallocated //to allow opening of FB/SB window (no TX activity should be scheduled in slots 6 and 7) if (l1ps_macs_com.fb_sb_task_enabled && l1ps_macs_com.fb_sb_task_detect) { macs.tx_allocation &= ~(MASK_SLOT0 >> 6); } #endif #if FF_L1_IT_DSP_USF // UL or BOTH TBF with dynamic allocation in use. DSP has to generate // an interrupt for USF validity for the block to be received if it // is either RBN (radio block number) % 3 = 0 or 1. if ( (l1s.next_time.fn_mod13 == 0) || (l1s.next_time.fn_mod13 == 4)) macs.dsp_usf_interrupt = 1; #endif } /* end if dynamic allocation mode */ /*---------------------------------------------------------*/ /* Fixed allocation mode */ /*---------------------------------------------------------*/ if (SET_PTR->mac_mode == FIX_ALLOC_NO_HALF) { UWORD8 i; UWORD32 blk_id = l1s.next_time.block_id; /* Allocation bitmap isn't exhausted */ /*-----------------------------------*/ if(macs.fix_alloc_exhaust == FALSE) { // Allocation exhaustion detection //--------------------------------- // // 0 current_fn End of allocation STI FN_MAX // |-----|---------|--------------------------------------|----|| // |.....|.........| |....|| // |-----|---------|--------------------------------------|----|| // // In this case, the Starting time is elapsed but current_fn < STI // ---> We must have (current block_ID - STI_block_ID) > 0 // if (blk_id < macs.sti_block_id) { blk_id += MAX_BLOCK_ID; // MAX_BLOCK_ID is the block ID obtained when fn = FN_MAX } // End of FN MAX modulo management #if TESTMODE // Never let exhaust the UL allocation in test mode packet transfer operation if (l1_config.TestMode) blk_id = macs.sti_block_id; #endif /* Allocation bitmap isn't exhausted */ if (blk_id < (macs.sti_block_id + SET_PTR->ul_tbf_alloc->fixed_alloc.bitmap_length)) { // Uplink allocation //------------------ // Resources are allocated according to the allocation bitmap or ts_override macs.tx_allocation = (UWORD8) ( SET_PTR->ul_tbf_alloc->timeslot_alloc & ( SET_PTR->ul_tbf_alloc->fixed_alloc.bitmap[blk_id - macs.sti_block_id] | SET_PTR->ts_override)); // Delay i = l1a_l1s_com.dl_tn - RXTX_DELAY; if (i > MAX_TS_NB) macs.tx_allocation >>= (-i); else macs.tx_allocation <<= i; // Monitoring //----------- if ((l1s.next_time.fn_mod13 == 0) || (macs.rx_blk_period != l1s.next_time.block_id)) { // Last frame was an idle frame or was used for another task --> considered as a free frame tra_before_frame = 8; } else { tra_before_frame = macs.tra_gap; // Tra gap of last TDMA frame is saved } // DOWNLINK CONTROL TIMESLOT ALLOCATION if ( SET_PTR->ul_tbf_alloc->timeslot_alloc & (MASK_SLOT0 >> SET_PTR->ul_tbf_alloc->fixed_alloc.ctrl_timeslot)) { // Tra and Ttb met --> allocates the downlink control timeslot macs.rx_allocation |= (UWORD8) (MASK_SLOT0 >> ( SET_PTR->ul_tbf_alloc->fixed_alloc.ctrl_timeslot - l1a_l1s_com.dl_tn)); } // UPLINK PDCH MONITORING else { // The control timeslot has been released // Allocates uplink TBF timeslots for monitoring macs.rx_allocation |= (UWORD8) ( SET_PTR->ul_tbf_alloc->timeslot_alloc << l1a_l1s_com.dl_tn); } // If Ttb or Tra not respected, the problem comes from uplink TBF // monitored timeslots // If Ttb not respected, downlink resources are removed for(i = 0; i <= MS_CLASS[SET_PTR->multislot_class].ttb; i++) macs.rx_allocation &= (~((UWORD8)(macs.tx_allocation << i))); // Tra respect according to the current allocation for(i = 0; i <= MS_CLASS[SET_PTR->multislot_class].tra; i++) macs.rx_allocation &= (~((UWORD8)(macs.tx_allocation << (8-i)))); // Tra respect according to the last allocation if (tra_before_frame < MS_CLASS[SET_PTR->multislot_class].tra) { macs.rx_allocation &= MASK_ALL_SLOTS >> (MS_CLASS[SET_PTR->multislot_class].tra - tra_before_frame); } #if MACS_STATUS if (macs.rx_allocation == 0) { l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb] = NO_RX_MONITORED; l1ps_macs_com.macs_status.nb ++; } #endif // Last block of the allocation bitmap... next block will use new settings // for timeslot monitoring if ((blk_id + 1) == (macs.sti_block_id + SET_PTR->ul_tbf_alloc->fixed_alloc.bitmap_length)) { macs.fix_alloc_exhaust = TRUE; // Informs L1S l1ps_macs_com.fix_alloc_exhaust_flag = TRUE; } } // End if "allocation bitmap isn't exhausted" else // Allocation bitmap has exhausted { macs.fix_alloc_exhaust = TRUE; // Informs L1S l1ps_macs_com.fix_alloc_exhaust_flag = TRUE; // Allocates uplink TBF timeslots for monitoring macs.rx_allocation |= (UWORD8) ( SET_PTR->ul_tbf_alloc->timeslot_alloc << l1a_l1s_com.dl_tn); } } // End if "allocation bitmap not exhausted" /* Allocation bitmap is exhausted */ /*--------------------------------*/ else { // Allocates uplink TBF timeslots for monitoring macs.rx_allocation |= (UWORD8) ( SET_PTR->ul_tbf_alloc->timeslot_alloc << l1a_l1s_com.dl_tn); } // End if fixed allocation exhausted } // End of fixed allocation processing } // End of uplink TBF processing /***********************************************************/ /* Allocation parameters checking and updating */ /***********************************************************/ { UWORD8 ts; BOOL rx_ts; BOOL tx_ts; #if MACS_STATUS UWORD8 time = INVALID; /* Timeslot counter */ #endif tx_no = 0; highest_ul_ts = INVALID; lowest_ul_ts = INVALID; highest_dl_ts = INVALID; lowest_dl_ts = INVALID; /*---------------------------------------------------------*/ /* Trb, Ttb parameters verification and Rx, Tx number, Sum */ /* and highest_ul_ts parameters processing */ /*---------------------------------------------------------*/ /* We verifies all allocated uplink and downlink timeslots */ for (ts = 0; ts < TS_NUMBER; ts ++) { rx_ts = (UWORD8) (macs.rx_allocation & (MASK_SLOT0 >> ts)); tx_ts = (UWORD8) (macs.tx_allocation & (MASK_SLOT0 >> ts)); #if MACS_STATUS /* If Rx(ts) = 0 and Tx(ts) = 0 */ /*------------------------------*/ if ((!rx_ts) && (!tx_ts)) { /* time is incremented */ /* If time was invalid, it becomes active */ if (time < TS_NUMBER) time ++; if ((time == RX_SLOT)||(time == TX_SLOT)) time = 1; } /* End if Rx = 0 and Tx = 0 */ /* If Rx(ts) = 1 and Tx(ts) = 1 */ /*------------------------------*/ if ((rx_ts) && (tx_ts)) { /* error (only type 1 mobiles are supported) */ l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb] = MS_CLASS_TIME_ERROR; l1ps_macs_com.macs_status.nb ++; } /* End if Rx = 1 and Tx = 1 */ #endif /* If Rx(ts) = 1 */ /*---------------*/ if (rx_ts) { highest_dl_ts = ts; #if MACS_STATUS /* If time is valid (invalid=0xFF) and time<Trb --> error */ if ((time < MS_CLASS[SET_PTR->multislot_class].trb) || (time == TX_SLOT)) { l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb] = MS_CLASS_TIME_ERROR; l1ps_macs_com.macs_status.nb ++; } time = RX_SLOT; #endif /* First Rx updating */ if (lowest_dl_ts == INVALID) lowest_dl_ts = ts; } /* End if Rx = 1 */ /* If Tx(ts) = 1 */ /*---------------*/ if (tx_ts) { /* Number of Tx is incremented and highest_ul_ts is updated */ tx_no ++; highest_ul_ts = ts; #if MACS_STATUS /* If time is valid (invalid=0xFF) and time<Ttb --> error */ if ( (time < MS_CLASS[SET_PTR->multislot_class].ttb) || (time == RX_SLOT)) { l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb] = MS_CLASS_TIME_ERROR; l1ps_macs_com.macs_status.nb ++; } time = TX_SLOT; #endif /* First Tx updating */ if (lowest_ul_ts == INVALID) lowest_ul_ts = ts; #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) trace_info.pdtch_trace.ul_status[ts] |= 0x4; #endif } /* End if Tx = 1 */ } /* End for */ /* Rx and Tx MS class parameters are updated */ if (lowest_dl_ts != INVALID) rx = (UWORD8) (highest_dl_ts - lowest_dl_ts + 1); if (lowest_ul_ts != INVALID) tx = (UWORD8) (highest_ul_ts - lowest_ul_ts + 1); #if MACS_STATUS // If the Trb parameter isn't respected at the end of // the TDMA frame --> MS Class isn't suported // Note: we considered that the first slot of the next TDMA is always a RX if (time < MS_CLASS[SET_PTR->multislot_class].trb) { l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb] = MS_CLASS_TIME_ERROR; l1ps_macs_com.macs_status.nb ++; } /*---------------------------------------------------------*/ /* Sum, Rx and Tx parameters verification */ /*---------------------------------------------------------*/ if ( ((rx + tx) > MS_CLASS[SET_PTR->multislot_class].sum) ||(rx > MS_CLASS[SET_PTR->multislot_class].rx) ||(tx > MS_CLASS[SET_PTR->multislot_class].tx)) { l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb] = MS_CLASS_SUM_ERROR; l1ps_macs_com.macs_status.nb ++; } // If all downlink timeslots are before the first uplink timeslot or after // the last uplink timeslot, Rx and Tx parameters are met if ( ( (highest_dl_ts > lowest_ul_ts) || (lowest_dl_ts > lowest_ul_ts)) && ( (highest_dl_ts < highest_ul_ts) || (lowest_dl_ts < highest_ul_ts))) { l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb] = MS_CLASS_SUM_ERROR; l1ps_macs_com.macs_status.nb ++; } #endif } /* End of allocation parameters checking and updating */ /***********************************************************/ /* Uplink RLC/MAC blocks management (RLC - DSP interfaces) */ /* PACCH/U placement (Poll response processing) */ /***********************************************************/ { BOOL poll; // TRUE if the poll response is processed UWORD8 highest_ul_data; // Highest uplink timeslot assigned for data transfer UWORD8 tx_allocation_s; // Used for saving of macs.tx_allocation UWORD8 rx_allocation_s; // Used for saving of macs.rx_allocation UWORD8 tx_data_s; // Used for saving of macs.tx_data UWORD8 highest_ul_ts_s; // Used for saving of highest_ul_ts UWORD8 lowest_ul_ts_s; // Used for saving of lowest_ul_ts UWORD8 poll_resp_ts; // Timeslot on which the MS must transmit a poll response UWORD8 ts; UWORD8 i; #if L1_EDA UWORD8 rx_monitored_s; // Used for saving of rx_monitored #endif /*---------------------------------------------------------*/ /* Uplink buffer indexes initialization */ /*---------------------------------------------------------*/ macs.ul_buffer_index[0] = macs.ul_buffer_index[1] = macs.ul_buffer_index[2] = macs.ul_buffer_index[3] = macs.ul_buffer_index[4] = macs.ul_buffer_index[5] = macs.ul_buffer_index[6] = macs.ul_buffer_index[7] = INVALID; // Reset all uplink blocks CS-TYPE in order to disable the validity of blocks not sent for(i=0; i<4; i++) { NDB_PTR->a_du_gprs[i][0] = CS_NONE_TYPE; NDB_PTR->a_pu_gprs[i][0] = CS_NONE_TYPE; } /*---------------------------------------------------------*/ /* Uplink RLC/MAC blocks request to RLC (RLC_UPLINK) */ /*---------------------------------------------------------*/ /* All allocated uplink resources are used for data */ macs.tx_data = macs.tx_allocation; highest_ul_data = highest_ul_ts; /* RLC UPLINK CALL */ /*-----------------*/ #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_UL_NO_TA) if ((SET_PTR->packet_ta.ta == 255) && (macs.tx_allocation != 0)) Trace_uplink_no_TA(); #endif #if TESTMODE if (l1_config.TestMode) { l1tm_rlc_uplink (tx_no, (API*) NDB_PTR->a_du_gprs); } else #endif { rlc_uplink(SET_PTR->assignment_id, // Assignment ID tx_no, // Number of timeslot that can be used // for uplink data block transfer l1s.next_time.fn, // Next frame number SET_PTR->packet_ta.ta, // Timing advance value (API*) NDB_PTR->a_pu_gprs, // Pointer on poll response struct (API*) NDB_PTR->a_du_gprs, // Pointer on uplink block struct macs.fix_alloc_exhaust // Set to 1 if fixed allocation exhausted ); } #if FF_TBF #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_RLC_PARAM) { UWORD32 cs_type = 0; //Get the cs_type from the UL buffer API header //The cs_type format: byte0 (LSByte) -indicates the CS type of TS0 //byte1- CS type of TS1 //byt2 - CS type of TS2 //byte3(MSBye) - CS type of TS3 for (i=0;i<tx_no;i++) { cs_type |= ((((UWORD8) NDB_PTR->a_du_gprs[i][0]) & CS_GPRS_MASK) << (8*i)); } Trace_rlc_ul_param(SET_PTR->assignment_id, // Assignment ID l1s.next_time.fn, // Next frame number tx_no, // Number of UL timeslot that can be used SET_PTR->packet_ta.ta, // Timing advance value macs.fix_alloc_exhaust, cs_type ); } #endif #else #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_RLC_PARAM) { Trace_rlc_ul_param(SET_PTR->assignment_id, // Assignment ID tx_no, // Number of timeslot that can be used // for uplink data block transfer l1s.next_time.fn, // Next frame number SET_PTR->packet_ta.ta, // Timing advance value (UWORD32) NDB_PTR->a_pu_gprs, // Pointer on poll response struct (UWORD32) NDB_PTR->a_du_gprs, // Pointer on uplink block struct macs.fix_alloc_exhaust); } #endif #endif i = 0; /*---------------------------------------------------------*/ /* Poll responses processing */ /*---------------------------------------------------------*/ #if L1_EDA macs.lowest_poll_ts = INVALID; #endif /* While a poll response is requested */ while ( ( ((((UWORD8) NDB_PTR->a_pu_gprs[i][0]) & 0xF) == CS1_TYPE_POLL) || ((((UWORD8) NDB_PTR->a_pu_gprs[i][0]) & 0xF) == CS_PAB8_TYPE) || ((((UWORD8) NDB_PTR->a_pu_gprs[i][0]) & 0xF) == CS_PAB11_TYPE)) && (i < 4)) { poll = TRUE; // The number of the timeslot on which the poll response is requested is converted to // become relative to L1 synchronization poll_resp_ts = (UWORD8) NDB_PTR->a_pu_gprs[i][1] - l1a_l1s_com.dl_tn + RXTX_DELAY; // All timeslots on which a poll is requested are set in last_poll_response. // last_poll_response will be updated in FN13 = 2, 6 and 10, when the 4th control // task will be processed for the current block period --> we'll be sure the poll // responses are entirely transmitted (no BCCH monitoring) macs.last_poll_response |= (UWORD8) (MASK_SLOT0 >> poll_resp_ts); // Allocations are saved: it's useful to restore uplink slots that were removed // for mapping a poll response that is finally not processed tx_allocation_s = macs.tx_allocation; rx_allocation_s = macs.rx_allocation; tx_data_s = macs.tx_data; lowest_ul_ts_s = lowest_ul_ts; highest_ul_ts_s = highest_ul_ts; #if L1_EDA rx_monitored_s = macs.rx_monitored; #endif #if L1_EDA //In the case of concurrent TBFs in extended dynamic mode, poll response can be canceled //if response is not done on concurrent timeslots if (((SET_PTR->allocated_tbf == BOTH_TBF) && (SET_PTR->mac_mode == EXT_DYN_ALLOC)) && (!((SET_PTR->dl_tbf_alloc.timeslot_alloc) & (SET_PTR->ul_tbf_alloc->timeslot_alloc) & (MASK_SLOT0 >> NDB_PTR->a_pu_gprs[i][1])))) { // Poll response not done poll = FALSE; } else #endif /* If the requested timeslot is allocated for data transfer */ /*----------------------------------------------------------*/ if (macs.tx_data & (MASK_SLOT0 >> poll_resp_ts)) { /* The slot is removed in tx_data */ /* No allocation modification */ macs.tx_data &= (UWORD8) (~(MASK_SLOT0 >> poll_resp_ts)); #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4) RTTL1_FILL_MACS_STATUS(TX_CANCELLED_POLL, poll_resp_ts) #endif } /* End if slot allocated for data */ /* If the poll response is requested on an invalid timeslot */ /* i.e: */ /* - Timeslot > 7 or < 0 */ /* - Timeslot that avoid the RX on the first timeslot */ /* according to Ttb */ /*-------------------------------------------------------------*/ else if ((poll_resp_ts > 7) || (poll_resp_ts <= MS_CLASS[SET_PTR->multislot_class].ttb)) { // Poll response not done poll = FALSE; } /* If the Tra parameter isn't respected */ /*--------------------------------------*/ #if L1_EDA //Tra does not always apply with EDA. else if (( (MASK_SLOT0 >> poll_resp_ts) & ( macs.rx_allocation >> (TS_NUMBER - MS_CLASS[SET_PTR->multislot_class].tra)) && (SET_PTR->mac_mode != EXT_DYN_ALLOC)) || ((poll_resp_ts == 6) && (l1ps_macs_com.fb_sb_task_enabled))) #else else if ( (MASK_SLOT0 >> poll_resp_ts) & ( macs.rx_allocation >> (TS_NUMBER - MS_CLASS[SET_PTR->multislot_class].tra))) #endif { // Poll response not done poll = FALSE; } /* Ttb and Tra respected */ /* Poll on a slot not already allocated for uplink data transfer */ /*---------------------------------------------------------------*/ else { /* If Ttb parameter isn't respected */ /*-----------------------------------*/ // If one or several downlink timeslots are allocated between: // - Ttb timeslots before the timeslot to use for poll response // - AND the last slot of the frame (optimization) // --> Ttb parameter isn't respected if the poll response is transmitted // so the RX resources are removed macs.rx_allocation &= ~((UWORD8) ( macs.rx_allocation & ( MASK_ALL_SLOTS >> ( poll_resp_ts - MS_CLASS[SET_PTR->multislot_class].ttb)))); #if L1_EDA if (SET_PTR->mac_mode == EXT_DYN_ALLOC) { UWORD8 only_monitored_ts; only_monitored_ts = ~((UWORD8)(SET_PTR->dl_tbf_alloc.timeslot_alloc << l1a_l1s_com.dl_tn)) & macs.rx_monitored; macs.rx_allocation &= ~(only_monitored_ts & (MASK_ALL_SLOTS >> (poll_resp_ts + 1 - RXTX_DELAY))); macs.rx_monitored &= macs.rx_allocation; } #endif /* The requested slot is allocated */ macs.tx_allocation |= (UWORD8) (MASK_SLOT0 >> poll_resp_ts); /* Lowest, highest numbered uplink timeslot and Tx parameter are updated */ if (poll_resp_ts < lowest_ul_ts) lowest_ul_ts = poll_resp_ts; if ((poll_resp_ts > highest_ul_ts) || (highest_ul_ts == INVALID)) highest_ul_ts = poll_resp_ts; tx = (UWORD8) (highest_ul_ts - lowest_ul_ts + 1); /* Tx and Sum parameters checking */ /*--------------------------------*/ /* While Tx or Sum parameter isn't respected and the poll response hasn't */ /* already been removed */ while ( ( (tx > MS_CLASS[SET_PTR->multislot_class].tx) || ((rx + tx) > MS_CLASS[SET_PTR->multislot_class].sum)) && (poll == TRUE)) { /* If no uplink timeslot is used for data */ if (macs.tx_data == 0) { /* The poll response isn't processed */ poll = FALSE; } else { /* Highest uplink PDTCH is removed */ macs.tx_allocation &= (UWORD8) (~(MASK_SLOT0 >> highest_ul_data)); macs.tx_data &= (UWORD8) (~(MASK_SLOT0 >> highest_ul_data)); #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4) RTTL1_FILL_MACS_STATUS(TX_CANCELLED_POLL, highest_ul_data) #endif /* Lowest, highest numbered uplink timeslot and Tx parameter are updated */ lowest_ul_ts = INVALID; highest_ul_ts = INVALID; highest_ul_data = INVALID; for (ts = 0; ts < TS_NUMBER; ts ++) { if (macs.tx_allocation & (MASK_SLOT0 >> ts)) { if (lowest_ul_ts == INVALID) lowest_ul_ts = ts; highest_ul_ts = ts; if (macs.tx_data & (MASK_SLOT0 >> ts)) highest_ul_data = ts; } } tx = (UWORD8) (highest_ul_ts - lowest_ul_ts + 1); } } /* End while Tx or Sum parameter not met */ } /* End of case "poll on a timeslot not already allocated for uplink data transfer" " Tra and Ttb respected " */ /* If the poll response is done */ /*------------------------------*/ if (poll == TRUE) { // Note: Power measurement always found because Tra met UWORD8 cs_type; UWORD16 prach_info; #if L1_EDA UWORD8 only_monitored_ts; #endif cs_type = (UWORD8) ((NDB_PTR->a_pu_gprs[i][0]) & 0xF); prach_info = (UWORD16) l1ps_dsp_com.pdsp_ndb_ptr->a_pu_gprs[i][2]; if(cs_type == CS_PAB8_TYPE) { l1ps_dsp_com.pdsp_ndb_ptr->a_pu_gprs[i][2] = ((API)(l1a_l1s_com.Scell_info.bsic << 2)) | ((API)(prach_info) << 8); l1ps_dsp_com.pdsp_ndb_ptr->a_pu_gprs[i][3] = 0; // macs.tx_prach_allocation is updated macs.tx_prach_allocation |= (UWORD8) (MASK_SLOT0 >> poll_resp_ts); } else if(cs_type == CS_PAB11_TYPE) { l1ps_dsp_com.pdsp_ndb_ptr->a_pu_gprs[i][2] = ((API)(prach_info) << 5); l1ps_dsp_com.pdsp_ndb_ptr->a_pu_gprs[i][3] = ((API)(l1a_l1s_com.Scell_info.bsic << 10)); // macs.tx_prach_allocation is updated macs.tx_prach_allocation |= (UWORD8) (MASK_SLOT0 >> poll_resp_ts); } #if L1_EDA only_monitored_ts = ~((UWORD8)(SET_PTR->dl_tbf_alloc.timeslot_alloc << l1a_l1s_com.dl_tn)) & (SET_PTR->ul_tbf_alloc->timeslot_alloc<< l1a_l1s_com.dl_tn); //lowest_poll_ts variable is used to remove only monitored ts above a ts //used for a poll. if (SET_PTR->mac_mode == EXT_DYN_ALLOC) { if ((poll_resp_ts - RXTX_DELAY) < macs.lowest_poll_ts) macs.lowest_poll_ts = (poll_resp_ts - RXTX_DELAY); } #endif #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4) RTTL1_FILL_UL_PDTCH(cs_type, tx_allocation_s & (0x80 >> poll_resp_ts), poll_resp_ts + l1a_l1s_com.dl_tn) #endif // a_ul_buffer_gprs updating macs.ul_buffer_index[poll_resp_ts] = i + 8; #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) { trace_info.pdtch_trace.ul_status[poll_resp_ts] |= cs_type << 4; trace_info.pdtch_trace.ul_status[poll_resp_ts] |= 1; } #endif } // End if the poll response is processed /* If the poll response isn't processed */ /*--------------------------------------*/ else { // All allocation parameters that may have been modified to map // this poll response are restored macs.tx_allocation = tx_allocation_s; macs.rx_allocation = rx_allocation_s; macs.tx_data = tx_data_s; highest_ul_ts = highest_ul_ts_s; lowest_ul_ts = lowest_ul_ts_s; #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) trace_info.pdtch_trace.blk_status |= 0x01; #endif #if MACS_STATUS l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb]= POLL_ERROR_MS_CLASS; l1ps_macs_com.macs_status.nb ++; #endif #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4) RTTL1_FILL_MACS_STATUS(POLL_REJECT, poll_resp_ts) #endif } // End if the poll response isn't processed //The trace for poll response #if FF_TBF #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_POLL_PARAM) { Trace_rlc_poll_param ( poll, //Indicate whether L1 is going to transmit poll resp or not: 0-no, 1-yes l1s.next_time.fn, //next frm on whih poll resp will be sent poll_resp_ts, //Timseslot for poll response macs.tx_allocation, (UWORD32)macs.tx_data, macs.rx_allocation, (UWORD32)macs.last_poll_response, ((NDB_PTR->a_pu_gprs[i][0]) & CS_GPRS_MASK)); } #endif #endif i ++; } /* End while a poll response is requested and can be mapped */ /*---------------------------------------------------------*/ /* Uplink RLC/MAC data blocks processing */ /*---------------------------------------------------------*/ i = 0; ts = 0; macs.rlc_blocks_sent = 0; // tx_data_s represents here the remaining timeslots that must be associated // with a RLC/MAC data block tx_data_s = macs.tx_data; /* While a timeslot is available to transmit an uplink RLC/MAC data block */ while (tx_data_s != 0) { /* If slot is allocated for data transfer */ if (macs.tx_data & (MASK_SLOT0 >> ts)) { UWORD8 cs_type = (((UWORD8) NDB_PTR->a_du_gprs[i][0]) & 0xF); /* If no RLC/MAC block is sent by RLC */ /*------------------------------------*/ if (cs_type == CS_NONE_TYPE) { // All uplink timeslots used for data and situated after this timeslot // (inluding this timeslot) are removed macs.tx_allocation &= (UWORD8) (~( macs.tx_data & (MASK_ALL_SLOTS >> ts))); macs.tx_data &= (UWORD8) (~(MASK_ALL_SLOTS >> ts)); tx_data_s = 0; #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4) RTTL1_FILL_MACS_STATUS(TX_ALLOWED_NO_BLK, ts) #if FF_TBF //Update the ul_status fileds for cond PDTCH trace //Since this blcok doesn't have any valid CS scheme, cs_type=0 and payload=11 if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) { //Bits7,6,5,4 (cs_type)of ul_status should all be zeros trace_info.pdtch_trace.ul_status[ts] &= 0x0f; //Make the payload as NA trace_info.pdtch_trace.ul_status[ts] |= 0x03; } #endif #endif } /* Else: uplink RLC/MAC data block transfer processing */ /*-----------------------------------------------------*/ else { #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) { trace_info.pdtch_trace.ul_status[ts] |= ((UWORD8) cs_type) << 4; trace_info.pdtch_trace.ul_status[ts] |= 2; } #endif /* A data block is assigned to timeslot ts */ tx_data_s &= (UWORD8) (~(MASK_SLOT0 >> ts)); /* rlc_blocks_sent value processed */ macs.rlc_blocks_sent ++; /* Uplink buffer index stored in ul_buffer_index */ macs.ul_buffer_index[ts] = i; /* Next data block */ i ++; } } /* End if slot allocated for data transfer */ /* Next timeslot */ ts ++; } /* End while */ } /* End of poll responses / uplink blocks processing */ /***********************************************************/ /* Measurement gap allocation */ /***********************************************************/ l1ps_macs_meas(); #if MACS_STATUS if (macs.pwr_allocation == 0) { l1ps_macs_com.macs_status.id[l1ps_macs_com.macs_status.nb] = NO_MEAS_MAPPED; l1ps_macs_com.macs_status.nb ++; } #endif // Initialize the reception block period macs.rx_blk_period = NO_DL_BLK; } /* End if next frame is the first of a block period */ /***********************************************************/ /* RLC_DOWNLINK call enabling for uplink PDCH status */ /***********************************************************/ // FN 13 // 0 1 2 3 4 5 6 7 8 9 10 11 12 // ---------------------------------------------------------- // || B0 || B1 || B2 || I || // || | | | || X | | | || X | | | || X || // ---------------------------------------------------------- if ( (l1s.actual_time.fn_mod13 == 4) || (l1s.actual_time.fn_mod13 == 8) || (l1s.actual_time.fn_mod13 == 12)) { #if (FF_TBF) l1ps_macs_rlc_uplink_info(); #else l1ps_macs_com.rlc_downlink_call = TRUE; #endif // RTT: trace UL PDTCH blocks #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4) if (SELECTED_BITMAP(RTTL1_ENABLE_UL_PDTCH)) { UWORD8 i,j = 0; for(i=2; i < 8; i++) { if (macs.tx_data & (0x80 >> i)) { RTTL1_FILL_UL_PDTCH((((UWORD8) NDB_PTR->a_du_gprs[j][0]) & 0xF), 1, i) j++; } } } #endif } #if FF_L1_IT_DSP_USF } // if (l1ps_macs_com.usf_status != USF_IT_DSP) #endif // FF_L1_IT_DSP_USF /***********************************************************/ /* MAC-S control result for LAYER 1 */ /***********************************************************/ /* We update allocation structures in Layer 1 - MAC-S interface */ l1ps_macs_com.rx_allocation = macs.rx_allocation; l1ps_macs_com.tx_nb_allocation = macs.tx_allocation & (~macs.tx_prach_allocation); l1ps_macs_com.tx_prach_allocation = macs.tx_prach_allocation; l1ps_macs_com.pwr_allocation = macs.pwr_allocation; #if FF_L1_IT_DSP_USF // When dynamic allocation is in use for uplink TBF, notifies L1S about // USF uncertainty for FN%13=3 and 7 if (l1ps_macs_com.usf_status != USF_IT_DSP) { if (macs.usf_vote_enable) l1ps_macs_com.usf_status = USF_AWAITED; else l1ps_macs_com.usf_status = USF_AVAILABLE; } #endif // FF_L1_IT_DSP_USF /***********************************************************/ /* DSP programming */ /***********************************************************/ // Write uplink blocks - timeslots correspondance in a_ul_buffer_gprs // MAC mode in d_sched_mode_gprs and the USF table in a_usf_gprs (Each frame) #if FF_L1_IT_DSP_USF if (l1ps_macs_com.usf_status != USF_AWAITED) #endif // FF_L1_IT_DSP_USF l1pddsp_transfer_mslot_ctrl (l1s.next_time.fn_mod13_mod4, // Burst number (0 to 3) macs.rx_allocation, // DL Bitmap macs.tx_allocation, // UL Bitmap SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_table, // USF table SET_PTR->mac_mode, // MAC mode macs.ul_buffer_index, // UL buffer index SET_PTR->tsc, // Training sequence code l1a_l1s_com.dedic_set.radio_freq, // Radio Freq. used for I/Q swap. l1a_l1s_com.dl_tn, // DL Transfer Sync. TN. #if FF_L1_IT_DSP_USF macs.dsp_usf_interrupt // USF interrupt activation #else macs.usf_vote_enable // USF vote activation #endif ); /*****************************************************************/ /* TBF parameters saving and updating */ /* last_rx_allocation, TFI, rlc_blocks_sent and last_poll_error */ /*****************************************************************/ // FN 13 // 0 1 2 3 4 5 6 7 8 9 10 11 12 // ---------------------------------------------------------- // || B0 || B1 || B2 || I || // || | | | X || | | | X || | | | X || || // ---------------------------------------------------------- if ( (l1s.next_time.fn_mod13 == 3) || (l1s.next_time.fn_mod13 == 7) || (l1s.next_time.fn_mod13 == 11)) { // Downlink blocks to report to RLC macs.last_rx_alloc = macs.rx_allocation; macs.rx_blk_period = l1s.next_time.block_id + 1; if (macs.rx_blk_period > MAX_BLOCK_ID) macs.rx_blk_period -= (UWORD32) (MAX_BLOCK_ID + 1); // Synchronization memorization for synchro. change detection macs.old_synchro_ts = l1a_l1s_com.dl_tn; macs.tx_allocation = 0; macs.tx_prach_allocation = 0; } /* End if FN13 = 2, 6 OR 10 */ } /* END OF L1PS_MACS_CTRL() */ /*-----------------------------------------------------------*/ /* l1ps_macs_read() */ /*-----------------------------------------------------------*/ /* Parameters: global l1ps_macs_com unchanged */ /* global l1s unchanged */ /* global l1a_l1s_com unchanged */ /* global l1ps_dsp_com changed */ /* */ /* Return: */ /* */ /* Description: l1ps_macs_read checks the last received */ /* downlink blocks. It checks if the TFI field */ /* is present and good in the block header and */ /* write in the NDB the number of received */ /* received blocks and on which timeslot was */ /* received each data block and how much block. */ /* Then the RLC layer is called (rlc_downlink) */ /*-----------------------------------------------------------*/ void l1ps_macs_read(UWORD8 pr_table[8]) { #define NDB_PTR l1ps_dsp_com.pdsp_ndb_ptr /***********************************************************/ /* Downlink RLC/MAC block management */ /***********************************************************/ // If we are in the first frame after a block period */ // FN 13 // 0 1 2 3 4 5 6 7 8 9 10 11 12 // ---------------------------------------------------------- // || B0 || B1 || B2 || I || // || | | | || X | | | || X | | | || X || // ---------------------------------------------------------- // X: Received downlink RLC/MAC block management if ( (l1s.actual_time.fn_mod13 == 4) ||(l1s.actual_time.fn_mod13 == 8) ||(l1s.actual_time.fn_mod13 == 12)) { UWORD8 ts; // Timeslot pointer BOOL tfi_result; // Set to 1 if the TFI field is present and good #if FF_TBF UWORD8 cs_type; BOOL crc_error = 0; #endif /* For each radio block allocated for downlink transfer in the last block period */ for (ts = 0; ts < TS_NUMBER; ts ++) { if (macs.last_rx_alloc & (MASK_SLOT0 >> ts)) { l1ps_macs_header_decoding(macs.rx_no, &tfi_result, &(pr_table[ts])); #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) { trace_info.pdtch_trace.dl_status[macs.rx_no] |= tfi_result << 4; #if FF_TBF crc_error = NDB_PTR->a_dd_gprs[macs.rx_no][0] & (1<<B_CRC_BLOCK_ERROR); //In the case of GPRS b_cs_type is 4bit info. cs_type = NDB_PTR->a_dd_gprs[macs.rx_no][0] & CS_GPRS_MASK; #if L1_EGPRS } #endif //If the blcok received is in CRC error, update the bit0 of dl_status as 1 if (crc_error == (1<<B_CRC_BLOCK_ERROR)) { trace_info.pdtch_trace.dl_status[macs.rx_no] |= 0x01; } else { // No CRC error. Good Block //dl_cs_type used only for BINARY TRACE. We put the following limitation so that //in the case of EGPRS with MCS we don't enter here. if ((cs_type > CS1_TYPE_DATA) && (cs_type <= CS4_TYPE)) { trace_info.pdtch_trace.dl_cs_type |= ((cs_type - 3) & 3) << (macs.rx_no * 2); } } #else if (l1ps_dsp_com.pdsp_ndb_ptr->a_dd_gprs[macs.rx_no][0] & 0x0100) // CRC error trace_info.pdtch_trace.dl_status[macs.rx_no] = 1; else { // CS type UWORD8 cs_type = NDB_PTR->a_dd_gprs[macs.rx_no][0] & 0xf; if (cs_type != CS1_TYPE_DATA) trace_info.pdtch_trace.dl_cs_type |= ((cs_type - 3) & 3) << macs.rx_no; } #endif } #endif // TFI filtering result stored in the downlink block buffer header NDB_PTR->a_dd_gprs[macs.rx_no][0] &= (API) (TFI_BIT_MASK); NDB_PTR->a_dd_gprs[macs.rx_no][0] |= (API) (tfi_result << TFI_BIT_SHIFT); /*---------------------------------------------------------*/ /* Timeslot and Rx_no values updating */ /*---------------------------------------------------------*/ // Timeslot number (relative to the network) on which the block was received is // stored in the downlink block buffer header NDB_PTR->a_dd_gprs[macs.rx_no][1] = ts + l1a_l1s_com.dl_tn; #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4) RTTL1_FILL_DL_PDTCH((UWORD8) (NDB_PTR->a_dd_gprs[macs.rx_no][4]), \ tfi_result, \ NDB_PTR->a_dd_gprs[macs.rx_no][0] & 0x0100 >> 8, \ NDB_PTR->a_dd_gprs[macs.rx_no][0] & 0x000f, \ ts + l1a_l1s_com.dl_tn) #endif macs.rx_no ++; } /* End if timeslot was allocated in downlink for the last block period */ } /* Next timeslot (FOR statement) */ #if FF_TBF //The "rlc_downlink_bufferize_param" structure is used to memorize parameters //over a block period in order to cope with spreading issue. // // C|W R | // |C W R | // | C W R| TBF 1 // | C W|R <------------ //---------------------- // | C|W R <-------------- // | |C W R // | | C W R TBF 2 // | | C W R // ^ // | // worst case where the rlc_downlink() function can be called // when spreading occurs //the case above depicts a new TBF assignment without change of the synchronization: //as the call to the rlc_downlink() function (that needs among other the assignment id parameter) //can be delayed due to spreading, the assignment id of TBF 1 should be memorized //until the call of the rlc_downlink() function that handles the last block of TBF 1 l1ps_macs_com.rlc_downlink_bufferize_param.allocated_tbf = l1ps.read_param.allocated_tbf; l1ps_macs_com.rlc_downlink_bufferize_param.assignment_id = l1ps.read_param.assignment_id; #if L1_EGPRS l1ps_macs_com.rlc_downlink_bufferize_param.tbf_mode = l1ps.read_param.tbf_mode; #endif // New buffer to be allocated macs.dl_buffer_index = INVALID; // Initialize spreading counter macs.tdma_delay = 0; // rlc_uplink_info() invokation in case of block skipped due to resynchro // See L1_MCU-CHG-17924 if (l1s.task_status[PDTCH].current_status != RE_ENTERED) l1ps_macs_rlc_uplink_info(); #endif /***********************************************************/ /* RLC_DOWNLINK call enabling for downlink PDCH status */ /***********************************************************/ l1ps_macs_com.rlc_downlink_call = TRUE; #if (TRACE_TYPE==1) || (TRACE_TYPE==4) #if L1_BINARY_TRACE == 0 if (trace_info.current_config->l1_dyn_trace & (1<<L1_DYN_TRACE_DL_PDTCH_CRC)) { BOOL crc_error=0; UWORD8 i; for(i=0;i<macs.rx_no;i++) crc_error |= ((NDB_PTR->a_dd_gprs[i][0] & 0x0100) >> (1+i)); Trace_Packet_Transfer(crc_error); // Previous RX blocks CRC_ERROR summary } #endif #endif } /* End if first frame after a block period */ } /* END OF L1PS_MACS_READ */ /*-----------------------------------------------------------*/ /* l1ps_macs_meas() */ /*-----------------------------------------------------------*/ /* Parameters: global l1ps_macs_com unchanged */ /* global l1a_l1s_com unchanged */ /* static macs.rx_allocation unchanged */ /* static macs.tx_allocation unchanged */ /* static macs.pwr_allocation changed */ /* Return: */ /* */ /* Description: This function processes the power measurement*/ /* gap according to the MS class and timeslots */ /* allocated in macs.tx_allocation and */ /* macs.rx_allocation fields. */ /*-----------------------------------------------------------*/ void l1ps_macs_meas() { #define SET_PTR l1pa_l1ps_com.transfer.aset WORD8 ts = 7; // Timeslot pointer UWORD8 gap = 0; // Gap size counter UWORD8 meas = 0; // Temporary gap processing UWORD8 bitmap_rx, bitmap_tx; macs.pwr_allocation = 0; bitmap_rx = macs.rx_allocation; bitmap_tx = macs.tx_allocation; // Searching of the last allocated timeslot // Note: Layer 1 always synchronize on a RX event, so the Tra gap will always // be found after the last allocated timeslot of a frame while ( (ts >= 0) && ((bitmap_rx & 0x01) == 0) && ((bitmap_tx & 0x01) == 0)) { // Memorization of the timeslot meas |= (UWORD8) (MASK_SLOT0 >> ts); // Gap is incremented gap ++; bitmap_rx >>= 1; bitmap_tx >>= 1; ts --; } // Last allocated timeslot: ts // Power gap size: gap // Save the "tra gap" at the end of the frame macs.tra_gap = gap; // If Tra respected before the first Rx of the frame after // Here we consider that L1 is ALWAYS synchronized on a RX timeslot if (gap >= MS_CLASS[SET_PTR->multislot_class].tra) { // The gap is allocated macs.pwr_allocation |= meas; } else // If the first slot of the next frame is free and permit to respect the Tra parameter // in fixed mode // Notes: // - if Tra not respected and the current slot 0 isn't allocated --> the slot 0 of // the next frame will not be allocated (only possible in Fixed mode) // - in all cases, only one timeslot need to be removed if ( (gap + 1 >= MS_CLASS[SET_PTR->multislot_class].tra) && (!(macs.rx_allocation & MASK_SLOT0))) { // The gap is allocated macs.pwr_allocation |= meas; } #if L1_EDA //if in extended dynamic allocation and if no power measurement is set in Tra gap (Tra not fulfilled) //then power measurement is set in Tta gap if MS class supports it. if ((SET_PTR->mac_mode == EXT_DYN_ALLOC) && (!macs.pwr_allocation)) { UWORD8 i = MAX_TS_NB; //compute tta while (!(macs.rx_allocation & (MASK_SLOT0 >> i))) i--; i++; gap = 0; meas = 0; while (!(macs.tx_allocation & (MASK_SLOT0 >> i))) { gap++; meas |= (UWORD8) (MASK_SLOT0 >> i); i++; } if (gap <= MS_CLASS[SET_PTR->multislot_class].tta) macs.pwr_allocation |= meas; } #endif //#if L1_EDA } /* End of l1ps_macs_meas */ /*-----------------------------------------------------------*/ /* l1ps_macs_header_decoding() */ /*-----------------------------------------------------------*/ /* Parameters: */ /* */ /* Return: */ /* */ /* Description: This function process the TFI filtering and */ /* decode the PR value in the MAC header of the */ /* block stored in buffer rx_no. */ /*-----------------------------------------------------------*/ void l1ps_macs_header_decoding(UWORD8 rx_no, UWORD8 *tfi_result, UWORD8 *pr) { UWORD8 payload; // Payload type value in the RLC/MAC header UWORD8 tfi; // TFI value UWORD16 mac_header[2]; // Downlink block MAC header *pr = 0; // DSP Driver // Downlink block MAC header reading mac_header[0] = NDB_PTR->a_dd_gprs[rx_no][4]; mac_header[1] = NDB_PTR->a_dd_gprs[rx_no][5]; *tfi_result = TFI_NOT_FILTERED; #if TFI_FILTERING /*---------------------------------------------------------*/ /* TFI Filtering */ /*---------------------------------------------------------*/ *tfi_result = TFI_BAD; /* Payload reading in the block header */ /*-------------------------------------*/ payload = (UWORD8) (((mac_header[0]) >> PAYLOAD_SHIFT) & PAYLOAD_MASK); #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) { trace_info.pdtch_trace.dl_status[rx_no] |= payload << 6; // RRBP + S/P trace trace_info.pdtch_trace.dl_status[rx_no] |= (mac_header[0] & (0x38)) >> 2; } #endif /* If the payload time isn't "RESERVED" */ if (payload != RESERVED) { /* Data block case, processed if a downlink TBF is assigned */ /*----------------------------------------------------------*/ if (payload == DATA_BLOCK) { *pr = (UWORD8) ((mac_header[0] >> DATA_PR_SHIFT) & PR_MASK); if ((l1ps.read_param.allocated_tbf == DL_TBF) || (l1ps.read_param.allocated_tbf == BOTH_TBF)) { // TFI value reading tfi = (UWORD8) ((mac_header[0] & DATA_TFI_MASK) >> DATA_TFI_SHIFT); // Downlink TFI control if (tfi == l1ps.read_param.dl_tfi) { *tfi_result = TFI_GOOD; } } // End if "downlink TBF enabled" } /* End of data block case */ /* Control block case */ /*--------------------*/ else { /* Optionnal field is no present */ if (payload == CTRL_NO_OPTIONAL) *tfi_result = TFI_NOT_PRESENT; /* Optionnal field is present */ if (payload == CTRL_OPTIONAL) { *pr = (UWORD8) ((mac_header[1] >> CTRL_PR_SHIFT) & PR_MASK); /* AC = 1 : TFI is present */ if (mac_header[0] & AC_MASK) { // TFI value reading tfi = (UWORD8) ((mac_header[1] & CTRL_TFI_MASK) >> CTRL_TFI_SHIFT); /* If direction is downlink TBF (D = 1) and a downlink TBF is in progress */ if ( mac_header[1] & MASK_D) { if ( (l1ps.read_param.allocated_tbf == DL_TBF) || (l1ps.read_param.allocated_tbf == BOTH_TBF)) { // Downlink TFI value is checked if (tfi == l1ps.read_param.dl_tfi) { *tfi_result = TFI_GOOD; } } } /* End if direction is downlink */ /* If direction is uplink TBF (D = 0) and an uplink TBF is in progress */ else if ( (l1ps.read_param.allocated_tbf == UL_TBF) || (l1ps.read_param.allocated_tbf == BOTH_TBF)) { // Uplink TFI value is checked if (tfi == l1ps.read_param.ul_tfi) { *tfi_result = TFI_GOOD; } } /* End if direction is uplink */ } /* End if AC = 1 */ /* AC = 0 : TFI is no present */ else *tfi_result = TFI_NOT_PRESENT; } // End if control block with optionnal field } // End of control block case } // End if PAYLOAD != "RESERVED" #endif /*---------------------------------------------------------*/ /* pr_table updating */ /*---------------------------------------------------------*/ if(l1ps.read_param.dl_pwr_ctl.p0 == 255) *pr = 0; // PR unused in "No power control" mode else *pr = PR_CONVERSION[l1ps.read_param.dl_pwr_ctl.bts_pwr_ctl_mode][*pr]; // If TFI isn't good if (*tfi_result != TFI_GOOD) { // Set bit 7 to 1 *pr |= 0x80; } } /*-----------------------------------------------------------*/ /* l1ps_macs_rlc_downlink_call() */ /*-----------------------------------------------------------*/ /* Parameters: */ /* */ /* Return: */ /* */ /* Description: This function is called at the end of L1S */ /* execution if RLC_DOWNLINK must be called. */ /* */ /*-----------------------------------------------------------*/ void l1ps_macs_rlc_downlink_call(void) { UWORD8 i; #if FF_TBF UWORD32 fn; BOOL rlc_dl_call = FALSE; API* rlc_buffer; API* dummy_rlc_buffer = NULL; //correct reporting of FN to L3 should be TDMA 4, 8 or 12 of MF13 fn=l1s.actual_time.fn-l1s.actual_time.fn_mod13_mod4; //when fn is in first block of the MF13 (which value is not a correct value //to report to upper layer) then fn should be decremented so that fn%13 = 12 if(l1s.actual_time.fn_mod13 <= 3) fn--; //to cope with border case // if (fn < 0) //OMAPS00090550 // fn += MAX_FN - 1; //OMAPS00090550 // Retrieve decoded blocks from API. All payload decoded check. if (!rlc_downlink_copy_buffer(FALSE)) { // Flag RLC call rlc_dl_call = TRUE; // RLC buffer exhaustion check if ((macs.dl_buffer_index == INVALID) || (l1a_l1s_com.recovery_flag)) { if (macs.tdma_delay >= 3) { // No block reported ever by DSP // #if (TRACE_TYPE==1) || (TRACE_TYPE==4) // l1_trace_egprs(NO_BLOCKS_PASSED_TO_L3); // #endif #if (TRACE_TYPE==5) trace_fct_simu("MACS ERROR: No RLC blocks passed to L3 on current frame", 0); sprintf(errormsg,"MACS ERROR: No RLC blocks passed to L3 on current frame"); log_sim_error(ERR); #endif } else { // No RLC buffer available #if (TRACE_TYPE==5) trace_fct_simu("MACS ERROR: No free buffer to copy RLC blocks on current frame", 0); //sprintf(errormsg,"MACS ERROR: No free buffer to copy RLC blocks on current frame"); //log_sim_error(ERR); #endif } // Dummy buffer to be reported rlc_buffer = (API*) dummy_rlc_buffer; } // RLC buffer has been succesfully allocated else { // RLC buffer to be reported rlc_buffer = (API*) &(macs.rlc_dbl_buffer[macs.dl_buffer_index].d_rlcmac_rx_no_gprs); #if (TRACE_TYPE == 1)||(TRACE_TYPE == 4) #if L1_BINARY_TRACE == 0 if (trace_info.current_config->l1_dyn_trace & (1<<L1_DYN_TRACE_DL_PDTCH_CRC)) { BOOL crc_error=0; UWORD8 i; #if L1_EGPRS if (l1ps_macs_com.rlc_downlink_bufferize_param.tbf_mode == TBF_MODE_EGPRS) { for(i=0;i<macs.rlc_dbl_buffer[macs.dl_buffer_index].d_rlcmac_rx_no_gprs;i++) crc_error |= ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & (1 << B_CRC_BLOCK_ERROR)) >> (1+i)); } else #endif { for(i=0;i<macs.rlc_dbl_buffer[macs.dl_buffer_index].d_rlcmac_rx_no_gprs;i++) crc_error |= ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_gprs[i][0] & (1 << B_CRC_BLOCK_ERROR)) >> (1+i)); } Trace_Packet_Transfer(crc_error); // Previous RX blocks CRC_ERROR summary } #endif #endif #if L1_EGPRS // IR testing specific trace #if (TRACE_TYPE == 1)||(TRACE_TYPE == 4) if ((trace_info.current_config->l1_dyn_trace & (1<<L1_DYN_TRACE_IR)) && (l1ps_macs_com.rlc_downlink_bufferize_param.tbf_mode == TBF_MODE_EGPRS)) { UWORD8 j ; // Clear ir trace variables trace_info.ir_trace.crc = 0; trace_info.ir_trace.mcs = 0; trace_info.ir_trace.status_ir_tfi = 0; trace_info.ir_trace.puncturing = 0; for(j=0;j<MS_CLASS[MAX_CLASS].rx;j++) { trace_info.ir_trace.bsn[j] = 0; trace_info.ir_trace.cv_bep_egprs[j]= 0; trace_info.ir_trace.mean_bep_egprs[j] = 0; } // Retrieve IR info from every PDCH for(i=0;i<macs.rlc_dbl_buffer[macs.dl_buffer_index].d_rlcmac_rx_no_gprs;i++) { UWORD16 crc; UWORD16 bsn1, bsn2; UWORD8 mcs; UWORD8 cps; UWORD8 k; // retrieve coding scheme mcs = (macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & CS_EGPRS_MASK); j = k = 0 ; // retrieve BSN switch (mcs) { case CS1_TYPE_POLL: case CS1_TYPE_DATA: case CS2_TYPE: case CS3_TYPE: case CS4_TYPE: // GPRS data block if ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & (1 << B_CRC_BLOCK_ERROR)) || (mcs == CS1_TYPE_POLL)) bsn1 = 0xffff; else bsn1 = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 1] >> 1) & 0x7f); bsn2 = 0; crc = (macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & ((1 << B_CRC_HEADER_ERROR) + (1 << B_CRC_PAYLOAD1_ERROR) + (1 << B_CRC_BLOCK_ERROR))); crc = (crc >> B_CRC_HEADER_ERROR); break; case MCS1_TYPE: case MCS2_TYPE: case MCS3_TYPE: case MCS4_TYPE: // rlc mac header type 3 cps = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 1]) >> 9) & 0x0F ; j = 255 ; // cps is set case MCS5_TYPE: case MCS6_TYPE: // rlc mac header type 2 if (j != 255) { cps = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 1]) >> 9) & 0x07 ; } do { if (cps == CPS_value1_6[k][mcs-MCS1_TYPE]) { // set puncturing scheme for payload 1 and 2: 0x01 PS1 0x10 PS2 0x11 PS3 related to time slot i trace_info.ir_trace.puncturing |= (((k+1) << 2) << (4*(3-i))) ; break ; } k++; } while (k < 3) ; // EGPRS data block, Header Type 2 and 3 if (macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & (1 << B_CRC_HEADER_ERROR)) bsn1 = 0xffff; else { bsn1 = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 0] >> 14) & 0x03); bsn1 |= ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 1] & 0x1ff) << 2); } bsn2 = 0; crc = (macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & ((1 << B_CRC_HEADER_ERROR) + (1 << B_CRC_PAYLOAD1_ERROR) + (1 << B_CRC_BLOCK_ERROR))); crc = (crc >> B_CRC_HEADER_ERROR); break; case MCS7_TYPE: case MCS8_TYPE: case MCS9_TYPE: // rlc mac header type 1 cps = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 2]) >> 3) & 0x1F ; do { if (cps == CPS_value7_9[j][k][mcs-MCS7_TYPE]) { // set puncturing scheme for payload 1 and 2: 0x01 PS1 0x10 PS2 0x11 PS3 related to time slot i trace_info.ir_trace.puncturing |= ((((j+1) << 2) | (k+1)) << (4*(3-i))) ; break ; } k++; if (k == 3) { k = 0; j++ ; } } while (j < 3) ; // EGPRS data block, Header Type 1 if (macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & (1 << B_CRC_HEADER_ERROR)) { bsn1 = 0xffff; bsn2 = 0xffff; } else { bsn1 = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 0] >> 14) & 0x03); bsn1 |= ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 1] & 0x1ff) << 2); bsn2 = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 1] >> 9) & 0x7f); bsn2 |= ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][SIZE_DSP_HEADER_EGPRS + 2] & 0x07) << 7); bsn2 += bsn1; if (bsn2 >= 2048) bsn2 -= 2048; } crc = (macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & ((1 << B_CRC_HEADER_ERROR) + (1 << B_CRC_PAYLOAD1_ERROR) + (1 << B_CRC_PAYLOAD2_ERROR) + (1 << B_CRC_BLOCK_ERROR))); crc = (crc >> B_CRC_HEADER_ERROR); break; default: bsn1 = 0xffff; bsn2 = 0xffff; crc = ((1 << B_CRC_HEADER_ERROR) + (1 << B_CRC_PAYLOAD1_ERROR) + (1 << B_CRC_PAYLOAD2_ERROR) + (1 << B_CRC_BLOCK_ERROR)); crc = (crc >> B_CRC_HEADER_ERROR); break; } // Update IR info from current PDCH trace_info.ir_trace.crc |= (crc << ((3-i)*8)); trace_info.ir_trace.bsn[i] = ((bsn1 << 16) | bsn2); trace_info.ir_trace.mcs |= ((mcs << ((3-i)*8))); /* we take only the msb of cv_bep and mean_bep */ trace_info.ir_trace.cv_bep_egprs[i] = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][2]) >> 8) ; trace_info.ir_trace.mean_bep_egprs[i] = (macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][3]) ; if (((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & TFI_BIT_MASK) >> TFI_BIT_SHIFT) == TFI_BAD) trace_info.ir_trace.status_ir_tfi |= (0x1 << (3-i)) ; /* set tfi flag to 1 if block is not for MS */ } trace_info.ir_trace.fn = l1s.actual_time.fn ; trace_info.ir_trace.status_ir_tfi |= ((macs.rlc_dbl_buffer[macs.dl_buffer_index].dl_status & (1 << IR_OUT_OF_MEMORY))<<(7-IR_OUT_OF_MEMORY)) ; // Output trace Trace_IR (&trace_info.ir_trace) ; } #endif //(TRACE_TYPE == 1)||(TRACE_TYPE == 4) #endif //L1_EGPRS #if TESTMODE if (l1_config.TestMode) { BOOL crc_error_bler; //Local var used for accumulating BLER UWORD8 i; l1tm.tmode_stats.bler_total_blocks++; #if L1_EGPRS if (l1ps_macs_com.rlc_downlink_bufferize_param.tbf_mode == TBF_MODE_EGPRS) { for(i=0;i<macs.rlc_dbl_buffer[macs.dl_buffer_index].d_rlcmac_rx_no_gprs;i++) { //bler_total_blocks gives the total number of blocks for computing BLER //The block error is assigned to crc_error_bler. //If the block is in error bler_crc is incremented. crc_error_bler = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & (1 << B_CRC_BLOCK_ERROR)) >> B_CRC_BLOCK_ERROR); if (crc_error_bler == TRUE) l1tm.tmode_stats.bler_crc[i]++; } } else #endif { for(i=0;i<macs.rlc_dbl_buffer[macs.dl_buffer_index].d_rlcmac_rx_no_gprs;i++) { //bler_total_blocks gives the total number of blocks for computing BLER //The block error is assigned to crc_error_bler. //If the block is in error bler_crc is incremented. crc_error_bler = ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_gprs[i][0] & (1 << B_CRC_BLOCK_ERROR)) >> B_CRC_BLOCK_ERROR); if (crc_error_bler == TRUE) l1tm.tmode_stats.bler_crc[i]++; } } } #endif } } // Payload still awaited else // (!rlc_downlink_copy_buffer(FALSE) { // Check spreading limit not exceeded if ((macs.tdma_delay >= 3) || (l1a_l1s_com.recovery_flag)) { // Free RLC buffer macs.rlc_dbl_buffer[macs.dl_buffer_index].d_rlcmac_rx_no_gprs = RLC_BLOCK_ACK; // Flag RLC call rlc_dl_call = TRUE; // Dummy buffer to be reported rlc_buffer = (API*) dummy_rlc_buffer; // No block reported ever by DSP #if (TRACE_TYPE==5) trace_fct_simu("MACS ERROR: No RLC blocks passed to L3 on current frame", 0); sprintf(errormsg,"MACS ERROR: No RLC blocks passed to L3 on current frame"); log_sim_error(ERR); #endif } else // Increment spreading counter macs.tdma_delay++; } // (!rlc_downlink_copy_buffer(FALSE) // Function RLC_DOWNLINK_DATA() to be invoked if (rlc_dl_call) { rlc_downlink_data( l1ps_macs_com.rlc_downlink_bufferize_param.assignment_id, // Assignment ID fn, // Frame number rlc_buffer // Pointer on the DL structure ); // Add the RLC_D traces in the case of EGPRS also #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if ((trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_RLC_PARAM) && (rlc_buffer != NULL)) { UWORD8 i; UWORD16 dl_blk_status[4] = {0,0,0,0}; for (i=0;i<macs.rx_no;i++) { #if (L1_EGPRS) if (l1ps_macs_com.rlc_downlink_bufferize_param.tbf_mode == TBF_MODE_EGPRS) { dl_blk_status[i] = A_DD_XGPRS[TBF_MODE_EGPRS][i][0]; } else { #endif dl_blk_status[i] = (((UWORD8) NDB_PTR->a_dd_gprs[i][0]) & 0x070F); #if (L1_EGPRS) } #endif } Trace_rlc_dl_param(l1ps_macs_com.rlc_downlink_bufferize_param.assignment_id, l1s.actual_time.fn, macs.rx_no, macs.rlc_blocks_sent, macs.last_poll_response, (dl_blk_status[1]<<16) |dl_blk_status[0], //dl_blk_status for TS1 and TS0 (dl_blk_status[3]<<16) |dl_blk_status[2]);//dl_blk_status for TS3 and TS2 } #endif macs.rx_no = 0; l1ps_macs_com.rlc_downlink_call = FALSE; } #else #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) { // If some RX have been received or some TX have been programmed if ((macs.last_rx_alloc != 0) || (macs.tx_allocation != 0)) { // Send trace Trace_condensed_pdtch(macs.last_rx_alloc, macs.tx_allocation); } // Reset PDTCH trace structure for(i=0; i<8; i++) { trace_info.pdtch_trace.dl_status[i] = 0; trace_info.pdtch_trace.ul_status[i] = 0; } trace_info.pdtch_trace.dl_cs_type = 0; trace_info.pdtch_trace.blk_status = 0; } #endif // Last_poll_error processing //--------------------------- // All slots allocated for poll response transmission (allocated in tx_allocation // but not in tx_data) are set to 0 (no error) in last_poll_response macs.last_poll_response &= (UWORD8) (~(macs.tx_allocation) | macs.tx_data); /* last_poll_response correspondance with network timeslot numbers */ i = macs.old_synchro_ts - RXTX_DELAY; if (i > MAX_TS_NB) { macs.last_poll_response <<= (-i); } else { macs.last_poll_response >>= i; } // Store number of RX within NDB for RLC //-------------------------------------- NDB_PTR->d_rlcmac_rx_no_gprs = macs.rx_no; #if L1_RECOVERY // blocks get a CRC error in case of COM error if (l1a_l1s_com.recovery_flag == TRUE) { // force bad CRC for 4 RX slots NDB_PTR->a_dd_gprs[0][0] |= 0x0100; NDB_PTR->a_dd_gprs[1][0] |= 0x0100; NDB_PTR->a_dd_gprs[2][0] |= 0x0100; NDB_PTR->a_dd_gprs[3][0] |= 0x0100; } #endif /******************/ // Call RLC_DOWNLINK //------------------ rlc_downlink( l1ps.read_param.assignment_id, // Assignment ID l1s.actual_time.fn, // Frame number (API*) &(NDB_PTR->d_rlcmac_rx_no_gprs), // Pointer on the DL structure macs.rlc_blocks_sent, // ID of the last transmitted uplink // data block macs.last_poll_response // Status of the poll responses of ); // the last block period #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_RLC_PARAM) { Trace_rlc_dl_param(l1ps.read_param.assignment_id, l1s.actual_time.fn, (UWORD32) &(NDB_PTR->d_rlcmac_rx_no_gprs), (UWORD8) NDB_PTR->d_rlcmac_rx_no_gprs, macs.rlc_blocks_sent, macs.last_poll_response); } #endif /* FreeCalypso TCS211 reconstruction */ #if 0 //TESTMODE if (l1_config.TestMode) { BOOL crc_error_bler; //Local var used for accumulating BLER UWORD8 i; l1tm.tmode_stats.bler_total_blocks++; for(i=0; i < macs.rx_no; i++) { //bler_total_blocks gives the total number of blocks for computing BLER //The block error is assigned to crc_error_bler. //If the block is in error bler_crc is incremented. crc_error_bler = ( (NDB_PTR->a_dd_gprs[i][0] & (1 << B_CRC_BLOCK_ERROR)) >> B_CRC_BLOCK_ERROR); if (crc_error_bler == TRUE) l1tm.tmode_stats.bler_crc[i]++; } } #endif // Clear parameters //----------------- /* All downlink blocks were processed */ macs.last_rx_alloc = 0; macs.rx_no = 0; macs.rlc_blocks_sent = 0; macs.last_poll_response = 0; l1ps_macs_com.rlc_downlink_call = FALSE; // Reset CS type. //--------------- #if (DSP == 33) || (DSP == 34) || (DSP == 35) || (DSP == 36) || (DSP == 37) || (DSP == 38) || (DSP == 39) NDB_PTR->a_dd_gprs[0][0] = NDB_PTR->a_dd_gprs[1][0] = NDB_PTR->a_dd_gprs[2][0] = NDB_PTR->a_dd_gprs[3][0] = NDB_PTR->a_dd_gprs[4][0] = NDB_PTR->a_dd_gprs[5][0] = NDB_PTR->a_dd_gprs[6][0] = NDB_PTR->a_dd_gprs[7][0] = CS_NONE_TYPE; #else NDB_PTR->a_dd_gprs[0][0] = NDB_PTR->a_dd_gprs[1][0] = NDB_PTR->a_dd_gprs[2][0] = NDB_PTR->a_dd_gprs[3][0] = CS_NONE_TYPE; #endif #endif }//void l1ps_macs_rlc_downlink_call(void) #if FF_TBF /*-----------------------------------------------------------*/ /* l1ps_macs_rlc_uplink_info() */ /*-----------------------------------------------------------*/ /* Parameters: */ /* */ /* Return: */ /* */ /* Description: This function is called in the */ /* l1ps_macs_ctrl() function on TDMA 4, 8 or 12 */ /* of MF13 */ /* */ /*-----------------------------------------------------------*/ void l1ps_macs_rlc_uplink_info(void) { UWORD8 i; #if ((TRACE_TYPE == 1) || (TRACE_TYPE == 4)) if (trace_info.current_config->l1_dyn_trace & 1<<L1_DYN_TRACE_CONDENSED_PDTCH) { // If some RX have been received or some TX have been programmed if ((macs.last_rx_alloc != 0) || (macs.tx_allocation != 0)) { // Send trace Trace_condensed_pdtch(macs.last_rx_alloc, macs.tx_allocation); } // Reset PDTCH trace structure for(i=0; i<8; i++) { trace_info.pdtch_trace.dl_status[i] = 0; trace_info.pdtch_trace.ul_status[i] = 0; } trace_info.pdtch_trace.dl_cs_type = 0; trace_info.pdtch_trace.blk_status = 0; } #endif // Last_poll_error processing //--------------------------- /* All slots allocated for poll response transmission (allocated in tx_allocation but not in tx_data) are set to 0 (no error) in last_poll_response */ macs.last_poll_response &= (UWORD8) (~(macs.tx_allocation) | macs.tx_data); /* last_poll_response correspondance with network timeslot numbers */ i = macs.old_synchro_ts - RXTX_DELAY; if (i > MAX_TS_NB) { macs.last_poll_response <<= (-i); } else { macs.last_poll_response >>= i; } #if L1_EGPRS //sub_mode is ON if (l1ps_macs_com.loop_param.sub_mode == TRUE) { macs.rlc_blocks_sent = 0; macs.last_poll_response = 0; } #endif rlc_uplink_info(l1ps.read_param.assignment_id, l1s.actual_time.fn, macs.rlc_blocks_sent, macs.last_poll_response); //While the initialization of these variables is performed in the //l1ps_macs_rlc_downlink_call() for GPRS, for EGPRS the initialization //is done here below. Note that it is still performed on frame index 0 //of MF13 in the l1s_end_manager() function whether in EGPRS or GPRS mode. //The variable below is set in the l1ps_macs_ctrl() function on frame index 2 of MF13 //and stores the rx allocation. This allocation is used later in the l1ps_macs_read() //function to pass the blocks that were received in the previous block period. macs.last_rx_alloc = 0; macs.rlc_blocks_sent = 0; macs.last_poll_response = 0; } /*-----------------------------------------------------------*/ /* rlc_downlink_copy_buffer() */ /*-----------------------------------------------------------*/ /* Parameters: isr: flag that indicates whether the call */ /* of this function is performed at the */ /* beginning of the hisr() function */ /* (hisr = TRUE) or not. */ /* */ /* Return: missing_payload: flag that indicates if still*/ /* payloads are missing after */ /* the copy */ /* */ /* Description: This function is called in the hisr() */ /* function with hisr = TRUE and in the */ /* l1ps_macs_rlc_downlink_call() function */ /* with hisr = FALSE */ /*-----------------------------------------------------------*/ UWORD8 rlc_downlink_copy_buffer(UWORD8 isr) { BOOL missing_payload = FALSE; BOOL allocation_needed = FALSE; UWORD32 i,j; // Downlink blocks expected if (l1ps_macs_com.rlc_downlink_call) { // Not in TDMA3 unless we are in ISR so we may have blocks to copy if ( ((macs.tdma_delay < 3) && (!isr)) // No logical XOR in C || ((macs.tdma_delay >= 3) && (isr)) ) { // Test buffer allocation requirement if not already allocated if (macs.dl_buffer_index == INVALID) { allocation_needed = TRUE; } // Look for an available buffer and initialize it if (allocation_needed) { for (i = 0; i < NBR_SHARED_BUFFER_RLC; i++) { //as soon as one free block is found if (macs.rlc_dbl_buffer[i].d_rlcmac_rx_no_gprs == RLC_BLOCK_ACK) { // Store buffer index macs.dl_buffer_index = i; // Store number of blocks in buffer passed to RLC macs.rlc_dbl_buffer[i].d_rlcmac_rx_no_gprs = macs.rx_no; break; } } } // Copy available blocks if buffer allocated if (macs.dl_buffer_index != INVALID) { // GPRS mode, no spreading #if L1_EGPRS if (l1ps_macs_com.rlc_downlink_bufferize_param.tbf_mode == TBF_MODE_GPRS) #endif { // Copy whole bunch of blocks (4 downlink, worst case) for (i=0;i<NBR_BUFFER_GPRS;i++) { memcpy((char*) &macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_gprs[i][0], (char*) A_DD_XGPRS[TBF_MODE_GPRS][i], SIZE_GPRS_DL_BUFF * sizeof(API)); } } // EGPRS mode #if L1_EGPRS else { // Parse every expected block for (i = 0; i < macs.rx_no; i++) { // If not already copied if ((macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0] & CS_EGPRS_MASK) == CS_NONE_TYPE) { // New block available in API if (A_DD_XGPRS[TBF_MODE_EGPRS][i][0] & (1 << B_BLK_READY)) { // Copy block from API to SRAM memcpy((char*) &macs.rlc_dbl_buffer[macs.dl_buffer_index].buffer.a_dd_egprs[i][0], (char*) A_DD_XGPRS[TBF_MODE_EGPRS][i], SIZE_EGPRS_DL_BUFF * sizeof(API)); // Acknowledge DSP A_DD_XGPRS[TBF_MODE_EGPRS][i][0] &= ~(1 << B_BLK_READY); } else missing_payload = TRUE; } } } // TBF mode #endif // Store "missing payload" flag used for TDMA3 limit case. macs.dl_missing_payload = missing_payload; } // Buffer is allocated else { // No buffer allocated yet if (allocation_needed) // RLC Buffer exhaustion - abort missing_payload = FALSE; else // No buffer allocated yet as no block present missing_payload = TRUE; // Still some buffer expected macs.dl_missing_payload = TRUE; } } // Not in ISR TDMA 0,1,2, or ISR from TDMA 3 else if ((macs.tdma_delay >= 3) && (!isr)) { // End of L1S in TDMA3, we need to report the status from ISR call. missing_payload = macs.dl_missing_payload; } // IR status reporting (relevant for EGPRS only) //---------------------------------------------- // RLC buffer allocated, all blocks received if ((macs.dl_buffer_index != INVALID) && (!missing_payload)) { #if L1_EGPRS if ( (l1ps_macs_com.rlc_downlink_bufferize_param.tbf_mode == TBF_MODE_EGPRS) && (l1ps_dsp_com.edsp_ndb_ptr->d_modem_status_egprs & (1 << B_IR_OUT_OF_MEM)) ) { // EGPRS TBF mode, IR out of memory status flag is set macs.rlc_dbl_buffer[macs.dl_buffer_index].dl_status |= (1 << IR_OUT_OF_MEMORY); } else #endif { // GPRS TBF mode or EGPRS but IR out of memory not detected macs.rlc_dbl_buffer[macs.dl_buffer_index].dl_status &= (~(1 << IR_OUT_OF_MEMORY)); } } } // if (l1ps_macs_com.rlc_downlink_call) // Return blocks receipt completion status return missing_payload; } #endif //FF_TBF #if TESTMODE //=========================================================================== // Function called instead of l1ps_macs_ctrl if CMU200 loop mode is selected //=========================================================================== void l1ps_tmode_macs_ctrl(void) { #define NDB_PTR l1ps_dsp_com.pdsp_ndb_ptr #define SET_PTR l1pa_l1ps_com.transfer.aset NDB_PTR->a_du_gprs[0][0] = l1_config.tmode.tx_params.coding_scheme; /* Enable loop */ NDB_PTR->d_sched_mode_gprs |= (1<<6); // Force single slot allocation for CMU loop: 1RX, 1TX macs.rx_allocation = 0x80; macs.tx_allocation = 0x10; macs.tx_prach_allocation = 0; macs.pwr_allocation = 0; macs.ul_buffer_index[0] = 0xFF; // UL buffer index macs.ul_buffer_index[1] = 0xFF; macs.ul_buffer_index[2] = 0xFF; macs.ul_buffer_index[3] = 0; macs.ul_buffer_index[4] = 0xFF; macs.ul_buffer_index[5] = 0xFF; macs.ul_buffer_index[6] = 0xFF; macs.ul_buffer_index[7] = 0xFF; /* Disable USF management in the DSP */ macs.usf_vote_enable = 0; /***********************************************************/ /* MAC-S control result for LAYER 1 */ /***********************************************************/ /* We update allocation structures in Layer 1 - MAC-S interface */ l1ps_macs_com.rx_allocation = macs.rx_allocation; l1ps_macs_com.tx_nb_allocation = macs.tx_allocation & (~macs.tx_prach_allocation); l1ps_macs_com.tx_prach_allocation = macs.tx_prach_allocation; l1ps_macs_com.pwr_allocation = macs.pwr_allocation; /***********************************************************/ /* DSP programming */ /***********************************************************/ // Write uplink blocks - timeslots correspondance in a_ul_buffer_gprs // MAC mode in d_sched_mode_gprs and the USF table in a_usf_gprs (Each frame) l1pddsp_transfer_mslot_ctrl (l1s.next_time.fn_mod13_mod4, // Burst number (0 to 3) macs.rx_allocation, // DL Bitmap macs.tx_allocation, // UL Bitmap SET_PTR->ul_tbf_alloc->dynamic_alloc.usf_table, // USF table SET_PTR->mac_mode, // MAC mode macs.ul_buffer_index, // UL buffer index SET_PTR->tsc, // Training sequence code l1a_l1s_com.dedic_set.radio_freq, // Radio Freq. used for I/Q swap. l1a_l1s_com.dl_tn, // DL Transfer Sync. TN. #if FF_L1_IT_DSP_USF macs.dsp_usf_interrupt // USF interrupt activation #else macs.usf_vote_enable // USF vote activation #endif ); //NDB_PTR->a_ctrl_ched_gprs[0] = CS1_TYPE_DATA; NDB_PTR->a_ctrl_ched_gprs[0] = NDB_PTR->a_du_gprs[0][0]; } #endif #endif // L1_GPRS