FreeCalypso > hg > fc-magnetite
diff src/aci2/alr/alr_cs.c @ 3:93999a60b835
src/aci2, src/condat2: import of g23m/condat source pieces from TCS211
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 26 Sep 2016 00:29:36 +0000 |
| parents | |
| children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/aci2/alr/alr_cs.c Mon Sep 26 00:29:36 2016 +0000 @@ -0,0 +1,2111 @@ +/* ++----------------------------------------------------------------------------- +| Project : GSM-PS +| Modul : ALR_CS ++----------------------------------------------------------------------------- +| Copyright 2002 Texas Instruments Berlin, AG +| All rights reserved. +| +| This file is confidential and a trade secret of Texas +| Instruments Berlin, AG +| The receipt of or possession of this file does not convey +| any rights to reproduce or disclose its contents or to +| manufacture, use, or sell anything it may describe, in +| whole, or in part, without the specific written consent of +| Texas Instruments Berlin, AG. ++----------------------------------------------------------------------------- +| Purpose : This Modul defines the SDL process Cell Selection. ++----------------------------------------------------------------------------- +*/ + +#ifndef ALR_CS_C +#define ALR_CS_C + +#define ENTITY_PL + +/*==== INCLUDES ===================================================*/ +#include <string.h> +#include <stdlib.h> +#include <limits.h> +#include "typedefs.h" +#include "vsi.h" +#include "custom.h" +#include "gsm.h" +#include "prim.h" +#include "pei.h" +#include "tok.h" + +#include "pcm.h" +#ifdef GPRS +#include "alr_gprs.h" +#endif + +#include "alr.h" +#include "alr_em.h" +#include "cl_list.h" + +#if defined (_SIMULATION_) +#define TRACING +#endif + +#if defined (TRACING) +#define ALR_TRACE_CS(a) ALR_TRACE(a) +#else +#define ALR_TRACE_CS(a) +#endif + +#if defined (TRACING) + +#define ALR_TRACE_CS_STD(a1) TRACE_EVENT_P1 ("std %d",a1) +#define ALR_TRACE_CS_BSIC_REQ(a,s) TRACE_EVENT_P2 ("BSIC REQ [%u] %d", a, s) +#define ALR_TRACE_CS_SYNC_VALID(a,f,t) TRACE_EVENT_P3 ("set new SC[%u],valid block fno:%d,time_al%d",a,f,t) + +#else + +#define ALR_TRACE_CS_STD(std) +#define ALR_TRACE_CS_BSIC_REQ(a,s) +#define ALR_TRACE_CS_SYNC_VALID(a,f,t) + +#endif + +/*==== EXPORT =====================================================*/ + +/*==== PRIVAT =====================================================*/ + +/*==== VARIABLES ==================================================*/ + +/* Power scan attempts for different search modes */ +LOCAL const U8 power_scan_attempts[] = { + FULL_SEARCH_MODE_ATTEMPTS, + NORMAL_SEARCH_MODE_ATTEMPTS, + FAST_SEARCH_MODE_ATTEMPTS, + BLACK_LIST_SEARCH_MODE_ATTEMPTS +}; + +/* Power measurements spreading time for different search modes */ +#if defined(_SIMULATION_) +LOCAL const U16 tim_powermeas_value[] = { + 500, + 500, + 100, + 100 +}; +#else +LOCAL const U16 tim_powermeas_value[] = { + TIM_FULL_SEARCH_POWERMEAS_VAL, + TIM_NORMAL_SEARCH_POWERMEAS_VAL, + TIM_FAST_SEARCH_POWERMEAS_VAL, + TIM_BLACK_LIST_SEARCH_POWERMEAS_VAL +}; +#endif + +LOCAL const int array_band_index[] = { + B_GSM_900, + B_E_GSM, + B_PCS_1900, + B_DCS_1800, + MAX_NUM_BANDS, + MAX_NUM_BANDS, + B_GSM_850 +}; + +/*==== FUNCTIONS ==================================================*/ + +LOCAL void cs_add_and_sort_channels (void); +LOCAL void cs_find_inactive_carriers (T_POWER_MEAS **p_results, + U16 p_results_size[2],U8 *std, + U8 no_of_attempts, SHORT *min_rxlev); +LOCAL U8 cs_add_whitelist_carriers (U16 p_results_size[2], + U8 std, U8 attempts, + SHORT *min_rxlev, + T_POWER_MEAS *presults, + U8 no_of_carriers_per_band[4]); +LOCAL BOOL cs_is_in_black_list (U8 region,U16 arfcn); +LOCAL U8 cs_restrict_max_carriers_per_band (U16 arfcn, U8 std, + U8 no_of_carriers_per_band[4], + U16 p_results_size[2], U8 band_index); +LOCAL void cs_move_extra_carriers (U8 i_cnf, U8 extra_cnf); +LOCAL void cs_reorder_the_extra_carriers (U8 extra_cnf); +LOCAL void cs_power_array_swap_arfcn (T_POWER_ARRAY *from, + T_POWER_ARRAY *to); + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_init | ++--------------------------------------------------------------------+ + + PURPOSE : Initialize Cell Selection Process. + Set state and dynamic allocated RAM area to NULL. + +*/ + +GLOBAL void cs_init (void) +{ + TRACE_FUNCTION ("cs_init()"); + alr_data->state[STATE_CS] = CS_NULL; + memset (&alr_data->cs_data, 0, sizeof (T_CS_DATA)); + alr_data->cs_data.p_results1 = (T_POWER_MEAS*)&alr_power_meas_result1; + alr_data->cs_data.p_results2 = (T_POWER_MEAS*)&alr_power_meas_result2; + alr_data->cs_data.search_mode = SM_WIDE_MODE; + alr_data->cs_data.sync_fail_count = CS_SYNC_FAIL_COUNT_MAX; + alr_data->cs_data.bcch_fail_count = CS_BCCH_FAIL_COUNT_MAX; + + if ( IS_EXT_MEAS_RUNNING ) /*alr_data->cs_data.mph_ext_meas_req NEQ NULL*/ + { + PFREE ( alr_data->cs_data.mph_ext_meas_req ); + alr_data->cs_data.mph_ext_meas_req = NULL; + } +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_get_next_area | ++--------------------------------------------------------------------+ + + PURPOSE : This returns the next area to scan ('next_area'). + Also it sets 'std' and 'freq_area' - members of 'cs_data' - + depend on given 'freq_bands'. +*/ + +LOCAL UBYTE cs_get_next_area (void) +{ + UBYTE next_area; + + if ((alr_data->cs_data.freq_area&ALL_FREQ_AREA) EQ ALL_FREQ_AREA) + next_area = + (alr_data->cs_data.freq_area&NEXT_AMERICAN_AREA) ? AMERICAN_FREQ_AREA : EUROPEAN_FREQ_AREA; + else + next_area = alr_data->cs_data.freq_area; + + /* + * In the case the members and value arenīt already initialized, + * next_area is set to 0 + */ + switch (next_area) + { + default: + case EUROPEAN_FREQ_AREA: + if ((alr_data->cs_data.std12 & 0x0f) EQ 0) /* not initialized */ + next_area = 0; + break; + case AMERICAN_FREQ_AREA: + if ((alr_data->cs_data.std12 >> 4) EQ 0) /* not initialized */ + next_area = 0; + break; + case 0: + break; + } + +/* + if (next_area) + { + TRACE_EVENT_P9 ("cs_get_next_area: fb=%02x => cs_std=%u(%u) std12=%02x area=%02x'%c%c' next=%u'%c'", + alr_data->cs_data.freq_bands, alr_data->cs_data.std, std, + alr_data->cs_data.std12, alr_data->cs_data.freq_area, + (alr_data->cs_data.freq_area & EUROPEAN_FREQ_AREA) ? 'E':' ', + (alr_data->cs_data.freq_area & AMERICAN_FREQ_AREA) ? 'A':' ', + next_area, next_area ? ((next_area EQ AMERICAN_FREQ_AREA) ? 'A':' E') : '?'); + } +*/ + return next_area; +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_get_std_area | ++--------------------------------------------------------------------+ + + PURPOSE : This returns the frequency band 'std' depend on given + 'freq_bands'. It also sets the suitable frequency area + to the value of a possible given area pointer. + + This function knows only the single and dual frequency + band combinations. Triple or quad frequency band + combinations leads to return values set to 0. +*/ + +LOCAL UBYTE cs_get_std_area (UBYTE freq_bands, UBYTE *p_area) +{ + UBYTE cs_freq_area; + UBYTE cs_std; + + switch (freq_bands) + { + case BAND_GSM_900:/* single band */ + cs_freq_area = EUROPEAN_FREQ_AREA; + cs_std = STD_900; + break; + case BAND_DCS_1800:/* single band */ + cs_freq_area = EUROPEAN_FREQ_AREA; + cs_std = STD_1800; + break; + case BAND_PCS_1900:/* single band */ + cs_freq_area = AMERICAN_FREQ_AREA; + cs_std = STD_1900; + break; + case BAND_E_GSM:/* extended single band */ + case BAND_GSM_900|BAND_E_GSM: /* extended single band */ + cs_freq_area = EUROPEAN_FREQ_AREA; + cs_std = STD_EGSM; + break; + case BAND_GSM_850:/* single band */ + cs_freq_area = AMERICAN_FREQ_AREA; + cs_std = STD_850; + break; + case BAND_DUAL:/* dual band */ + cs_freq_area = EUROPEAN_FREQ_AREA; + cs_std = STD_DUAL; + break; + case BAND_DUAL_EXT:/* dual band */ + cs_freq_area = EUROPEAN_FREQ_AREA; + cs_std = STD_DUAL_EGSM; + break; + case BAND_DUAL_US:/* dual band */ + cs_freq_area = AMERICAN_FREQ_AREA; + cs_std = STD_DUAL_US; + break; + default: + cs_freq_area = 0; + cs_std = 0; + break; + } + + if (p_area) + *p_area = cs_freq_area; + return cs_std; +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_set_std_area | ++--------------------------------------------------------------------+ + + PURPOSE : This returns the next area to scan ('next_area'). + Also it sets 'std' and 'freq_area' - members of 'cs_data' - + depend on given 'freq_bands'. + This function will be executed at least once (single band) and + not more than twice (multiband) per power request. +*/ + +LOCAL UBYTE cs_set_std_area (void) +{ + UBYTE next_area; + UBYTE cs_freq_bands = alr_data->cs_data.freq_bands; + UBYTE cs_std; + UBYTE cs_freq_area = alr_data->cs_data.freq_area; + +/* + TRACE_EVENT_P1 ("cs_set_std_area(): %s call", cs_freq_area?"second":"first"); +*/ + if (cs_freq_area & NEXT_AMERICAN_AREA) + /* + * Initializing before second measurement + */ + next_area = AMERICAN_FREQ_AREA; + else + next_area = 0; + + if (cs_freq_bands EQ 0) + { + TRACE_ERROR ("alr_data->cs_data.freq_bands=0 (Invalid value)!"); + TRACE_ASSERT (cs_freq_bands EQ 0); + } + + cs_std = cs_get_std_area(cs_freq_bands, &cs_freq_area); + if (cs_std EQ 0) + { + cs_freq_area = 0; + if (cs_freq_bands & BAND_DUAL_EXT) + { /* european frequency bands */ + cs_freq_area |= EUROPEAN_FREQ_AREA; + if (next_area EQ 0) + next_area = EUROPEAN_FREQ_AREA; + } + if (cs_freq_bands & BAND_DUAL_US) + { /* american frequency bands */ + cs_freq_area |= AMERICAN_FREQ_AREA; + if (next_area EQ 0) + next_area = AMERICAN_FREQ_AREA; + } + + if (next_area EQ EUROPEAN_FREQ_AREA) + { + cs_freq_bands &= BAND_DUAL_EXT; + } + else + { + cs_freq_bands &= BAND_DUAL_US; + cs_freq_area |= NEXT_AMERICAN_AREA; + } + /* + * get the next 'std' depend on the value of 'next_area' + */ + cs_std = cs_get_std_area (cs_freq_bands, NULL); + } + + if (next_area EQ 0) + next_area = cs_freq_area; + + alr_data->cs_data.freq_area = cs_freq_area; + alr_data->cs_data.std = cs_std; + TRACE_EVENT_P9 ("cs_set_std_area: fb=%02x => cs_std=%u(%u) std12=%02x area=%02x'%c%c' next=%u'%c'", + alr_data->cs_data.freq_bands, alr_data->cs_data.std, std, + alr_data->cs_data.std12, alr_data->cs_data.freq_area, + (alr_data->cs_data.freq_area & EUROPEAN_FREQ_AREA) ? 'E':' ', + (alr_data->cs_data.freq_area & AMERICAN_FREQ_AREA) ? 'A':' ', + next_area, next_area ? ((next_area EQ AMERICAN_FREQ_AREA) ? 'A':'E') : '?'); + + return next_area; +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_power_array_swap_arfcn| ++--------------------------------------------------------------------+ + + PURPOSE : This function swaps ARFCN and its RxLev between the + locations passed. +*/ +LOCAL void cs_power_array_swap_arfcn(T_POWER_ARRAY *ptr1,T_POWER_ARRAY *ptr2) +{ + U16 temp_arfcn; + SHORT temp_rxlev; + + temp_arfcn = ptr1->radio_freq; + temp_rxlev = ptr1->accum_power_result; + + ptr1->radio_freq = ptr2->radio_freq; + ptr1->accum_power_result = ptr2->accum_power_result; + + ptr2->radio_freq = temp_arfcn; + ptr2->accum_power_result = temp_rxlev; + +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_prepare_power_req | ++--------------------------------------------------------------------+ + + PURPOSE : This prepares the inputs for the power request depending + on the frequency areas. + +*/ + +GLOBAL T_POWER_MEAS* cs_prepare_power_req (void) +{ + UBYTE next_area,region; + T_POWER_MEAS *power_meas; + T_LIST *black_list; + + TRACE_FUNCTION ("cs_prepare_power_req"); + + /* + * depending on the set frequency area + */ + next_area = cs_get_next_area (); + + if (next_area) + { /* members and values are already initialized */ + switch (next_area) + { + default: + case EUROPEAN_FREQ_AREA: + power_meas = alr_data->cs_data.p_results1; + alr_data->cs_data.std = alr_data->cs_data.std12&0x0f; + break; + case AMERICAN_FREQ_AREA: + power_meas = alr_data->cs_data.p_results2; + alr_data->cs_data.std = alr_data->cs_data.std12>>4; + break; + } + + TRACE_EVENT_WIN_P4 ("cs_prepare_power_req: cs_std=%u(%02x) next=%u'%c'", + alr_data->cs_data.std, alr_data->cs_data.std12, + next_area, (next_area EQ AMERICAN_FREQ_AREA) ? 'A':'E'); + + } + else + { /* must be initialize first */ + int i; + int power_array_size; + int radio_freq_offset = 1; + + /* + * depending on the given frequency bands + */ + next_area = cs_set_std_area (); + /* + * depending on the just set frequency standard + */ + switch(alr_data->cs_data.std) + { + case STD_900: + power_array_size = MAX_CARRIERS_GSM900; + break; + + case STD_EGSM: + power_array_size = MAX_CARRIERS_EGSM900; + break; + + case STD_1900: + power_array_size = MAX_CARRIERS_PCS1900; + radio_freq_offset = 512; + break; + + case STD_1800: + power_array_size = MAX_CARRIERS_DCS1800; + radio_freq_offset = 512; + break; + + case STD_DUAL: + power_array_size = MAX_CARRIERS_DUAL; + break; + + case STD_DUAL_EGSM: + power_array_size = MAX_CARRIERS_DUAL_EGSM; + break; + + case STD_850: + power_array_size = MAX_CARRIERS_GSM850; + radio_freq_offset = 128; + break; + + case STD_DUAL_US: + power_array_size = MAX_CARRIERS_DUAL_US; + break; + + default: + power_array_size = 0; + break; + } + + if (power_array_size) + { + /* + * fill all carriers which shall be measured into the structure + * to layer 1. + */ + T_POWER_ARRAY *power_array; + USHORT size; + + if ( IS_EXT_MEAS_RUNNING ) + { + power_array_size = alr_data->cs_data.mph_ext_meas_req->num_of_chan; + } + + /* depend on the next area get the right T_POWER_MEAS instance */ + switch (next_area) + { + default: + case EUROPEAN_FREQ_AREA: + size = sizeof (T_POWER_MEAS1); + power_meas = alr_data->cs_data.p_results1; + /* + TRACE_EVENT_P1 ("static T_POWER_MEAS(EU): size=%u", sizeof (T_POWER_MEAS1)); + */ + memset (alr_data->cs_data.p_results1, 0, sizeof (T_POWER_MEAS)); + + /* save value of 'std' for cs_increment_c_channels() */ + alr_data->cs_data.std12 |= alr_data->cs_data.std & 0x0f; + break; + + case AMERICAN_FREQ_AREA: + size = sizeof (T_POWER_MEAS2); + power_meas = alr_data->cs_data.p_results2; + /* + TRACE_EVENT_P1 ("static T_POWER_MEAS(USA): size=%u", sizeof (T_POWER_MEAS2)); + */ + /* save value of 'std' for cs_increment_c_channels() */ + alr_data->cs_data.std12 |= (alr_data->cs_data.std << 4); + break; + } + + memset (power_meas, 0, size); + + TRACE_EVENT_WIN_P8 ("cs_prepare_power_req: cs_std=%u(%u) std12=%02x rf=%u..%u (%u) next=%u'%c'", + alr_data->cs_data.std, std, alr_data->cs_data.std12, + radio_freq_offset, power_array_size+radio_freq_offset-1, + power_array_size, + next_area, (next_area EQ AMERICAN_FREQ_AREA) ? 'A':'E'); + + power_array = &(power_meas->power_array[0]); + memset (power_array, 0, sizeof (T_POWER_ARRAY) * power_array_size); + power_meas->power_array_size = power_array_size; + + if ( IS_EXT_MEAS_RUNNING ) + { + USHORT *arfcn = &alr_data->cs_data.mph_ext_meas_req->arfcn[0]; + for ( i = 0; i < power_array_size; i++, power_array++, arfcn++ ) + { + power_array->radio_freq = ARFCN_TO_L1 ( *arfcn ); + } + } + else + { + if(alr_data->cs_data.p_power_req->search_mode NEQ BLACK_LIST_SEARCH_MODE) + { + power_array_size += radio_freq_offset; + for(i=radio_freq_offset; i < power_array_size; i++, power_array++) + { + power_array->radio_freq = (U16)i; + } + } + else + { + /* Blacklist search. Fill all Black Listed and "Grey" carriers + * sent by RR for L1 measurement + */ + region = srv_get_region_from_std(std); + black_list = (T_LIST*)&alr_data->cs_data.p_power_req->black_list.list[region]; + power_meas->power_array_size = 0; + + for(i=CHANNEL_0;i<CHANNEL_0_INTERNAL;i++) + { + if(srv_get_channel(black_list, i)) + { + power_array->radio_freq = ARFCN_TO_L1 ( i ); + + power_meas->power_array_size++; + power_array++; + } + } + } /* Black list search */ + } /* !EXT_MEAS */ + } /* power_array_size != 0 */ + else + { + TRACE_EVENT_P6 ("cs_prepare_power_req: invalid: fb=%02x cs_std=%u area=%02x'%c%c' next='%c'", + alr_data->cs_data.freq_bands, + alr_data->cs_data.std, alr_data->cs_data.freq_area, + (alr_data->cs_data.freq_area & EUROPEAN_FREQ_AREA) ? 'E':' ', + (alr_data->cs_data.freq_area & AMERICAN_FREQ_AREA) ? 'A':' ', + (next_area EQ AMERICAN_FREQ_AREA) ? 'A':'E'); + power_meas = NULL;/* invalid values */ + } + } + return power_meas;/* do it */ +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_power_req | ++--------------------------------------------------------------------+ + + PURPOSE : This starts measurement of the fieldstrength of all channels. + +*/ + +GLOBAL void cs_power_req (UBYTE pch_interrupt) +{ + + TRACE_EVENT_P1 (" p_results1=%08x", alr_data->cs_data.p_results1); + + /* Reset CS data */ + alr_data->cs_data.std12 = 0; + alr_data->cs_data.freq_area = 0; + alr_data->cs_data.c_meas = 0; + alr_data->cs_data.p_results1->power_array_size = 0; + alr_data->cs_data.p_results2->power_array_size = 0; + + cs_prepare_power_req(); + + if(IS_EXT_MEAS_RUNNING) + { + alr_data->cs_data.c_max_meas = power_scan_attempts[FULL_SEARCH_MODE]; + + alr_data->cs_data.c_tim_meas = (tim_powermeas_value[FULL_SEARCH_MODE]/ + power_scan_attempts[FULL_SEARCH_MODE]); + + } + else + { + T_MPH_POWER_REQ* mph_power_req = alr_data->cs_data.p_power_req; + + /* CSI-LLD Section: 4.1.3.4.2.3 + * Set the number of RF scan attempts and TIM_POWER_MEAS timer value + * based on the search mode + */ + + /* Set the number of RF scan attempts */ + alr_data->cs_data.c_max_meas = + power_scan_attempts[mph_power_req->search_mode]; + + /* Set TIM_POWER_MEAS timer value */ + alr_data->cs_data.c_tim_meas = + (tim_powermeas_value[mph_power_req->search_mode] / + power_scan_attempts[mph_power_req->search_mode]); + + + if (((alr_data->cs_data.freq_area & ALL_FREQ_AREA) EQ ALL_FREQ_AREA) AND + (mph_power_req->search_mode NEQ BLACK_LIST_SEARCH_MODE)) + { + /* Multiply the number of field strength measurements by 2 */ + alr_data->cs_data.c_max_meas <<= 1; + + /* Reduce the TIM_POWER_MEAS value by half */ + alr_data->cs_data.c_tim_meas >>= 1; + } + + TRACE_EVENT_P2(" Search Type:[%u] Search Mode:[%u]", + mph_power_req->pch_interrupt, + mph_power_req->search_mode); + } + + /* new state is dependent on necessary of the L1 configuration */ + if ((pch_interrupt EQ PCH_INTERRUPT) OR (alr_data->cs_data.std NEQ std)) + { + SET_STATE (STATE_CS, CS_INIT_L1); + } + else + { + SET_STATE (STATE_CS, CS_START_MEASURE); + } + + TRACE_EVENT_P2 ("cs_power_req: c_max_meas=%u c_tim_meas=%u", + alr_data->cs_data.c_max_meas, alr_data->cs_data.c_tim_meas); + + ma_cs_rxlev_req (); +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_bsic_req | ++--------------------------------------------------------------------+ + + PURPOSE : Request of RR to search for frequency correction + burst and synchron burst. + +*/ + +GLOBAL void cs_bsic_req (T_MPH_BSIC_REQ * mph_bsic_req) +{ + UBYTE cs_std; + + if (mph_bsic_req) + { + ALR_TRACE_CS_BSIC_REQ(mph_bsic_req->arfcn&ARFCN_MASK, GET_STATE (STATE_CS)); + + ALR_EM_BSIC_REQUEST; + + } + /* + * cs_bsic_req is called from several places with mph_bsic_req EQ NULL + */ + + switch (GET_STATE (STATE_CS)) + { + case CS_ACTIVE_BCCH: + ma_stop_scell_bcch_req (); + /* + * first stop BCCH reading, + * then start like in idle mode if + * it is a valid channel number + */ + /*lint -fallthrough*/ + default: + if (mph_bsic_req) + { + alr_data->cs_data.arfcn = mph_bsic_req->arfcn; + cs_std = STD_GET_FROM_ARFCN (mph_bsic_req->arfcn); + if (cs_std AND (cs_std NEQ alr_data->cs_data.std)) + { /* + * When RR supplies a value of 'std' then init radio band before sync + */ + TRACE_EVENT_WIN_P2("cs_bsic_req: cs_std=%u->%u", + alr_data->cs_data.std, cs_std); + alr_data->cs_data.std = cs_std; + ma_cs_init_l1_req(alr_data->cs_data.std); + SET_STATE(STATE_CS, CS_INIT_SYNC); + return; /* wait of MPHC_INIT_L1_CON */ + } + } + /* If no value of 'std' are supplied, then start sync immediately */ + /*lint -fallthrough*/ + case CS_INIT_DONE: +#if defined(STOP_SYNC_TASK) + if (alr_data->cs_data.sync_active) + { + /* + * stop any synchronisation task + */ + SET_STATE(STATE_CS, CS_STOP_SYNC); + ma_cs_stop_network_sync_req(); + return;/* wait for MPHC_STOP_NETWORK_SYNC_CON */ + } + /*lint -fallthrough*/ + case CS_STOP_SYNC_DONE: +#endif /* STOP_SYNC */ + /* + * start synchronisation + * to the frequency correction burst and synchron burst + * in layer 1. + */ + TRACE_EVENT_P1 ("NETWORK_SYNC_REQ[%u]", alr_data->cs_data.arfcn&ARFCN_MASK); + ma_cs_network_sync_req (ARFCN_STD_TO_L1(alr_data->cs_data.arfcn, alr_data->cs_data.std)); + SET_STATE(STATE_CS, CS_ACTIVE_SYNC); + break; +#if defined(STOP_SYNC_TASK) + case CS_STOP_SYNC: + /* do nothing, wait for MPHC_STOP_NETWORK_SYNC_CON */ + return; +#endif /* STOP_SYNC */ + } +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_rxlev_ind | ++--------------------------------------------------------------------+ + + PURPOSE : This is the response from layer 1 for + a measurement sample request over all channels. + +*/ + +GLOBAL void cs_rxlev_ind (T_MPHC_RXLEV_IND* rxlev_ind) +{ +#if defined(_SIMULATION_) + { + /* + * special handling for windows simulation. In this case predefined + * values are used, because the primitives are too big to be forwarded + * via the test interface. + */ + int index = rxlev_ind->shared_ptr; + + memcpy(alr_data->cs_data.p_results1,&tap_rxlev_response_european[index], + sizeof(T_POWER_MEAS)); + + memcpy(alr_data->cs_data.p_results2,&tap_rxlev_response_american[index], + sizeof(T_POWER_MEAS)); + } +#endif /* _SIMULATION_ */ + + TRACE_EVENT_P3 ("cs_rxlev_ind(): cs_std=%u c_meas=%u/%u", + alr_data->cs_data.std, alr_data->cs_data.c_meas+1, alr_data->cs_data.c_max_meas); + + if ( IS_EXT_MEAS_RUNNING AND alr_data->cs_data.ext_meas_state_pend NEQ CS_NULL ) + { + TIMERSTOP(TIM_POWERMEAS); + SET_STATE (STATE_CS, CS_NULL); + nc_stop_ext_meas_ind(); + return; + } + + switch (GET_STATE (STATE_CS)) + { + case CS_MEASURED: + + /* increment the number of measurement samples */ + alr_data->cs_data.c_meas++; + + if (alr_data->cs_data.c_meas EQ alr_data->cs_data.c_max_meas) + { + /* Allocate memory for MPH_POWER_CNF */ + PALLOC (mph_power_cnf, MPH_POWER_CNF); + + if (alr_data->cs_data.p_power_cnf) + { + PFREE (alr_data->cs_data.p_power_cnf); + } + + alr_data->cs_data.p_power_cnf = mph_power_cnf; + + memset (alr_data->cs_data.p_power_cnf, 0, sizeof (T_MPH_POWER_CNF)); + + TIMERSTOP(TIM_POWERMEAS); + + /* Sort the channels based on their RxLev */ + cs_add_and_sort_channels (); + + if(!IS_EXT_MEAS_RUNNING) + { + /* Free MPH_POWER_REQ buffer */ + PFREE(alr_data->cs_data.p_power_req); + + alr_data->cs_data.p_power_req = NULL; + } + + /* Send fieldstrength list to RR */ + ma_cs_power_cnf (mph_power_cnf); + + /* we are done with power measurements, next comes the BCCH detection */ + SET_STATE (STATE_CS, CS_NULL); + + alr_data->cs_data.p_power_cnf = NULL; + + ALR_EM_POWER_MEASUREMENT_CONFIRM; + } + else + if (alr_data->cs_data.c_meas < alr_data->cs_data.c_max_meas) + { + /* + * start next sample + */ + if ((alr_data->cs_data.freq_area & ALL_FREQ_AREA) EQ ALL_FREQ_AREA) + { /* + * toggle radio_band and configure new before the next measurement + */ + TRACE_EVENT_P2 ("cs_rxlev_ind(): area=%02x->%02x", + alr_data->cs_data.freq_area, + alr_data->cs_data.freq_area^NEXT_AMERICAN_AREA); + alr_data->cs_data.freq_area ^= NEXT_AMERICAN_AREA; + SET_STATE (STATE_CS, CS_INIT_L1); + } + else + { /* + * start new measurement without new configuration of radio_band + */ + SET_STATE (STATE_CS, CS_START_MEASURE); + } + ma_cs_rxlev_req (); + } + break; + + default: + break; + } +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_network_sync_ind | ++--------------------------------------------------------------------+ + + PURPOSE : The function handles the result of a search for FCB or SCB. + +*/ + +GLOBAL void cs_network_sync_ind (T_MPHC_NETWORK_SYNC_IND* sync_ind) +{ + PALLOC (mph_bsic_cnf, MPH_BSIC_CNF); + + alr_data->cs_data.sync_active = FALSE; + /* + * The BCCH fail counter has to be reinitialized for every new cell. + */ + alr_data->cs_data.bcch_fail_count = CS_BCCH_FAIL_COUNT_MAX; + /* + * copy arfcn, rxlev and bsic + */ + mph_bsic_cnf->arfcn = ARFCN_STD_TO_G23(sync_ind->radio_freq, alr_data->cs_data.std); + mph_bsic_cnf->arfcn = STD_ADD_TO_ARFCN(mph_bsic_cnf->arfcn, alr_data->cs_data.std); + /* US_BIT should be used to differentiate an US frequency channel. */ + switch (alr_data->cs_data.std) + { + case STD_1900: + case STD_850: + case STD_DUAL_US: + mph_bsic_cnf->arfcn |= US_BIT; + break; + default: + break; + } + + /* + * set bsic and result code + */ + mph_bsic_cnf->bsic = (UBYTE)(sync_ind->bsic & 63); + mph_bsic_cnf->cs = sync_ind->sb_flag ? CS_NO_ERROR : CS_NO_BCCH_AVAIL; + TRACE_EVENT_P4 ("network_sync_ind:[%u] rf=%u cs_std=%u %s", + mph_bsic_cnf->arfcn&ARFCN_MASK, + sync_ind->radio_freq, alr_data->cs_data.std, + sync_ind->sb_flag ? "OK" : "no BCCH avail."); + + switch (GET_STATE(STATE_CS)) + { + /* + * workarounds for crossing MPHC_STOP_NETWORK_SYNC_REQ and + * MPHC_NETWORK_SYNC_IND: + * It is possible to receive a MPHC_NETWORK_SYNC_IND from layer 1 at the + * same time as sending a MPHC_STOP_NETWORK_SYNC_REQ. The + * MPHC_STOP_NETWORK_SYNC_REQ will be ignored by the layer 1 and no + * STOP_NW_SYNC_CON will be send. + */ + case CS_STOP_SYNC: + /* The state CS_STOP_SYNC was set and the MPHC_NETWORK_SYNC_REQ was + * interrupted to clean the way for a new MPHC_NETWORK_SYNC_REQ. A possible + * MPHC_NETWORK_SYNC_IND will be treated as MPHC_STOP_NETWORK_SYNC_CON + * because the result does not matter. + */ + SET_STATE (STATE_CS, CS_STOP_SYNC_DONE); + cs_bsic_req(NULL); + /*lint -fallthrough */ + default: + /* + * the synchronisation has been broken + */ + ALR_TRACE_CS ("MPHC_NETWORK_SYNC_IND ignored"); + PFREE (mph_bsic_cnf); + return; + /* break; */ + + case CS_NW_SYNC_TIMEOUT: + /* + * The state CS_NW_SYNC_TIMEOUT was set and the MPHC_NETWORK_SYNC_REQ was + * interrupted to limit the time for reading the BCCH. A possible + * MPHC_NETWORK_SYNC_IND will be treated normal. Otherwise, no BSIC_CNF + * will be sent to RR, and RR waits forever. + */ + SET_STATE(STATE_CS, CS_ACTIVE_SYNC); + /*lint -fallthrough */ + case CS_ACTIVE_SYNC: + ma_bsic_cnf (mph_bsic_cnf); + break; + } + +#ifdef GPRS + if(alr_data->gprs_data.pcco_active) + { + USHORT index; + /* store data in nc_data.cr_cell */ + alr_data->nc_data.cr_cell.ba_arfcn = + ARFCN_TO_G23(sync_ind->radio_freq)&ARFCN_MASK; + alr_data->nc_data.cr_cell.bsic = (UBYTE)(sync_ind->bsic & 63); + alr_data->nc_data.cr_cell.frame_offset = sync_ind->fn_offset; + alr_data->nc_data.cr_cell.time_align = sync_ind->time_alignment; + + index = nc_get_index(alr_data->nc_data.cr_cell.ba_arfcn); + if ((index NEQ NOT_PRESENT_16BIT) AND (index NEQ LAST_BSIC_REQ)) + { + /* + * update in nc_data also because this data is not valid + * anymore after a network_sync_req and in some special cases + * nc_start_reselect will use the data in nc_data.cell[index] + */ + alr_data->nc_data.cell[index].bsic = (UBYTE)(sync_ind->bsic & 63); + alr_data->nc_data.cell[index].frame_offset = sync_ind->fn_offset; + alr_data->nc_data.cell[index].time_align = sync_ind->time_alignment; + } + SET_STATE(STATE_CS, CS_NULL); + return; + } +#endif + if (sync_ind->sb_flag) + { + if (GET_STATE (STATE_CS) EQ CS_ACTIVE_SYNC) + { + USHORT arfcn; + PALLOC(new_scell, MPHC_NEW_SCELL_REQ); + + arfcn = ARFCN_STD_TO_G23(sync_ind->radio_freq, alr_data->cs_data.std); + ALR_TRACE_CS_SYNC_VALID(arfcn, sync_ind->fn_offset, + sync_ind->time_alignment); + + /* store data in nc_data.cr_cell */ + alr_data->nc_data.cr_cell.ba_arfcn = + ARFCN_TO_G23(sync_ind->radio_freq)&ARFCN_MASK; + alr_data->nc_data.cr_cell.bsic = sync_ind->bsic; + alr_data->nc_data.cr_cell.frame_offset = 0; + alr_data->nc_data.cr_cell.time_align = 0; + + new_scell->radio_freq = sync_ind->radio_freq; + new_scell->fn_offset = sync_ind->fn_offset; + new_scell->time_alignment = sync_ind->time_alignment; + new_scell->tsc = sync_ind->bsic; + + ALR_EM_BSIC_CONFIRM(EM_AVAIL); + + /* after successful sync we can use narrow band search mode for + * subsequent syncs. + */ + alr_data->cs_data.search_mode = SM_NARROW_MODE; + alr_data->cs_data.sync_fail_count = CS_SYNC_FAIL_COUNT_MAX; + + alr_data->sc_band = get_band (arfcn); + ma_new_scell_req(new_scell); + } + } + else + { + ALR_TRACE_CS ("INVALID BLOCK"); + + ALR_EM_BSIC_CONFIRM(EM_NOT_AVAIL); + /* If there are too many failed sync attempts in a row the AFC value + * in L1 might be screwed up somehow. + */ + if(alr_data->cs_data.sync_fail_count EQ 0) + { + alr_data->cs_data.sync_fail_count = CS_SYNC_FAIL_COUNT_MAX; + alr_data->cs_data.search_mode = SM_WIDE_MODE; + } + else + { + alr_data->cs_data.sync_fail_count -= 1; + } + + } + SET_STATE(STATE_CS, CS_NULL); +} + + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_stop | ++--------------------------------------------------------------------+ + + PURPOSE : Process signal cs_stop from SDL process + Main_Control. This function stops all cell selection + activities of ALR. + +*/ + +GLOBAL void cs_stop (void) +{ + switch (GET_STATE (STATE_CS)) + { + case CS_ACTIVE_MEASURE: + { + PALLOC (stop_req, MPHC_STOP_RXLEV_REQ); + PSENDX (L1, stop_req); + if ( IS_EXT_MEAS_RUNNING ) + { + /* wait for MPHC_RXLEV_IND */ + alr_data->cs_data.ext_meas_state_pend = CS_ACTIVE_MEASURE; + } + break; + } + case CS_ACTIVE_SYNC: + { + PALLOC (stop_req, MPHC_STOP_NETWORK_SYNC_REQ); + TIMERSTOP(TIM_NW_SYNC_GUARD); + PSENDX (L1, stop_req); + break; + } + case CS_ACTIVE_BCCH: + /* + * Stop BCCH reading + */ + ma_stop_scell_bcch_req (); + break; + default: + break; + } + SET_STATE (STATE_CS, CS_NULL); +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_read_scell_bcch | ++--------------------------------------------------------------------+ + + PURPOSE : Process signal cs_read_scell_bcch from SDL process + Main_Control. This funtion requests reading of the full + serving cell BCCH. + +*/ +GLOBAL void cs_read_scell_bcch (void) +{ + /* + * send bcch req + * do full normal BCCH reading(modulus=1,position=0) + */ + SET_STATE(STATE_CS, CS_ACTIVE_BCCH); + ma_scell_full_nbcch(); +} + + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_add_and_sort_channels | ++--------------------------------------------------------------------+ + + PURPOSE : Accumulate power measurements for all found channels + sorted by highest fieldstrength. +*/ + +LOCAL void cs_add_and_sort_channels (void) +{ + T_MPH_POWER_CNF* mph_power_cnf = alr_data->cs_data.p_power_cnf; + T_MPH_POWER_REQ* mph_power_req = alr_data->cs_data.p_power_req; + T_POWER_MEAS *p_results[MAX_REGIONS]; + T_POWER_ARRAY *parray, *pbig, *last; + SHORT rxlev, min_rxlev[MAX_NUM_BANDS]; + UBYTE x, band_index; + U16 i, j, p_results_size[MAX_REGIONS], arfcn; + U8 radio_band_config, std[MAX_REGIONS]; + U8 no_of_attempts, region, where_to_add; + U8 i_cnf, extra_cnf, extra_space; + U8 no_of_carriers_per_band[4] = {0, 0, 0, 0}; /* Counter for Multible frequency band in a Region + * Index 0 for GSM_900, + * Index 1 for DCS_1800, + * Index 2 for GSM_850, + * Index 3 for PCS_1900 + */ + /* Obtain data for European region */ + p_results[EUROPEAN_REGION] = alr_data->cs_data.p_results1; + p_results_size[EUROPEAN_REGION] = alr_data->cs_data.p_results1 ? + (alr_data->cs_data.p_results1->power_array_size) : 0; + + /* Obtain data for American region */ + p_results[AMERICAN_REGION] = alr_data->cs_data.p_results2; + p_results_size[AMERICAN_REGION] = alr_data->cs_data.p_results2 ? + alr_data->cs_data.p_results2->power_array_size : 0; + + TRACE_FUNCTION ( "cs_add_and_sort_channels()" ); + + if (!mph_power_cnf) + { + TRACE_EVENT ("mph_power_cnf EQ NULL"); + SET_STATE (STATE_CS, CS_NULL); + return; + } + + i_cnf = 0; + extra_cnf = MAX_CHANNELS - 1; + mph_power_cnf->num_of_chan = 0; + + + /* Set the minimum signal level */ + if ( IS_EXT_MEAS_RUNNING ) + { + no_of_attempts = power_scan_attempts[FULL_SEARCH_MODE]; + for(x=0 ; x<MAX_NUM_BANDS ; x++ ) + min_rxlev[x] = SHRT_MIN + 1; + } + else + { + if (!mph_power_req) + { + TRACE_EVENT ("mph_power_req EQ NULL"); + SET_STATE (STATE_CS, CS_NULL); + return; + } + + no_of_attempts = power_scan_attempts[mph_power_req->search_mode]; + for(x=0 ; x<MAX_NUM_BANDS ; x++ ) + min_rxlev[x] = mph_power_req->lower_rxlevel_threshold[x] * no_of_attempts; + } + + TRACE_EVENT_P5 ("cs_add_and_sort_channels: std12=%02x max=%u/%u a='%c%c'", + alr_data->cs_data.std12, + p_results_size[EUROPEAN_REGION], + p_results_size[AMERICAN_REGION], + (alr_data->cs_data.freq_area & EUROPEAN_FREQ_AREA) ? 'E' : ' ', + (alr_data->cs_data.freq_area & AMERICAN_FREQ_AREA) ? 'A' : ' '); + + if ((alr_data->cs_data.freq_area&ALL_FREQ_AREA) EQ ALL_FREQ_AREA) + { + /* use 'std' values saved by cs_prepare_power_req() */ + std[EUROPEAN_REGION] = alr_data->cs_data.std12&0x0f; + std[AMERICAN_REGION] = alr_data->cs_data.std12>>4; + } + else + { + /* only one area */ + std[EUROPEAN_REGION] = std[AMERICAN_REGION] = alr_data->cs_data.std; + if (alr_data->cs_data.freq_area & EUROPEAN_FREQ_AREA) + p_results_size[AMERICAN_REGION] = 0; + if (alr_data->cs_data.freq_area & AMERICAN_FREQ_AREA) + p_results_size[EUROPEAN_REGION] = 0; + } + + if( IS_EXT_MEAS_RUNNING ) + { + /* + * According to 3GPP 05 08 + * Section "Range of parameter RxLev" + * + * The measured signal level shall be mapped to an RXLEV value between 0 and 63, as follows: + * RXLEV 0 = less than -110 dBm + SCALE. + * RXLEV 1 = -110 dBm + SCALE to -109 dBm + SCALE. + * RXLEV 2 = -109 dBm + SCALE to -108 dBm + SCALE. + * : + * : + * RXLEV 62 = -49 dBm + SCALE to -48 dBm + SCALE. + * RXLEV 63 = greater than -48 dBm + SCALE. + * where SCALE is an offset that is used only in the ENHANCED MEASUREMENT REPORT message, + * otherwise it is set to 0. + */ + + for(i=0; i < p_results_size[EUROPEAN_REGION]; i++) + if( p_results[EUROPEAN_REGION]->power_array->accum_power_result < 0 ) + p_results[EUROPEAN_REGION]->power_array->accum_power_result = 0; + + for(i=0; i < p_results_size[AMERICAN_REGION]; i++) + if( p_results[AMERICAN_REGION]->power_array->accum_power_result < 0 ) + p_results[AMERICAN_REGION]->power_array->accum_power_result = 0; + } + else + { + /* LLD Section : 4.1.3.4.2 + * Find all inactive carriers and add them to MPH_POER_CNF + * Also set the Rxlev of all Black Listed carriers to less than + * Lower_Rxlev_Threshold + */ + + TRACE_EVENT_P2("BIC->PWR array size, E:%d, A:%d", + p_results_size[0], p_results_size[1]); + + cs_find_inactive_carriers(p_results, p_results_size, + std, no_of_attempts, + min_rxlev); + + TRACE_EVENT_P2("AIC->PWR array size, E:%d, A:%d", + p_results_size[0], p_results_size[1]); + + /* + * If the search mode is BLACK_LIST_SEARCH_MODE no need for sorting + * (based on RXLEV) the carriers (RR will look only for + * inactive carrier list) + */ + if(mph_power_req->search_mode EQ BLACK_LIST_SEARCH_MODE) + { + /* Allow measurement indications posting to RR */ + SET_STATE(STATE_NC,NC_IDLE); + return; + } + + /* Put whitelist carriers at the top of power cnf list */ + if(mph_power_req->white_list.white_list_valid) + { + region = mph_power_req->white_list.region; + + switch(mph_power_req->white_list.region) + { + case EUROPEAN_REGION : + case AMERICAN_REGION : + i_cnf = cs_add_whitelist_carriers(p_results_size, + std[region], no_of_attempts, + min_rxlev, p_results[region], + no_of_carriers_per_band); + TRACE_EVENT_P5( + "[%c]White list Area (B_GSM_EGSM:%d, B_1800:%d, B_850:%d, B_1900:%d)", + (mph_power_req->white_list.region ? 'A' : 'E'), + no_of_carriers_per_band[0], no_of_carriers_per_band[1], + no_of_carriers_per_band[2], no_of_carriers_per_band[3]); + break; + default : + TRACE_EVENT_P1("Invalid whitelist region:%d",region); + break; + } + } /* white list valid */ + else + { + TRACE_EVENT("WL is absent"); + } + } /* !ext_meas */ + + TRACE_EVENT_P3("AWL->PWR array size, E:%d A:%d i_cnf:%d", + p_results_size[0], p_results_size[1],i_cnf); + + while (i_cnf < MAX_CHANNELS) + { + pbig=NULL; + rxlev = 0; + radio_band_config = where_to_add =0x00; + + /* Loop through both regions */ + for (i=0;i<MAX_REGIONS;i++) + { + if((p_results_size[i]) AND (p_results[i] NEQ NULL)) + { + parray = p_results[i]->power_array; + + for (j=0; j<p_results_size[i]; j++, parray++) + { + + arfcn = ARFCN_STD_TO_G23(parray->radio_freq, std[i]); + get_band_index_from_arfcn(arfcn, x, std[i]); + if (parray->accum_power_result >= min_rxlev[x] AND parray->accum_power_result > rxlev) + { + pbig = parray; + rxlev = parray->accum_power_result; + radio_band_config = std[i]; + region = (U8) i; + band_index = x; + } + } + } + } + + if( pbig NEQ NULL ) + { + arfcn = ARFCN_STD_TO_G23(pbig->radio_freq, radio_band_config); + if (rxlev > (min_rxlev[band_index] -1)) + { + /* fill mph_power_cnf */ + arfcn = STD_ADD_TO_ARFCN(arfcn, radio_band_config); + + /* US_BIT should be used to differentiate an US frequency channel. */ + switch (radio_band_config) + { + case STD_1900: + case STD_850: + case STD_DUAL_US: + arfcn |= US_BIT; + break; + default: + break; + } + + where_to_add = cs_restrict_max_carriers_per_band( + arfcn&ARFCN_MASK, + radio_band_config, + no_of_carriers_per_band, + p_results_size, band_index); + + if(where_to_add EQ ADD_AT_THE_TOP) + { + /* First 40 Strongest Cariiers */ + mph_power_cnf->arfcn[i_cnf] = arfcn; + mph_power_cnf->rx_lev[i_cnf] = (U8)(rxlev/no_of_attempts); + + i_cnf++; + } + else if(where_to_add EQ ADD_AT_THE_BOTTOM) + { + /* Strongest Carriers which fall between 41 to 60 */ + if(extra_cnf >= i_cnf) + { + mph_power_cnf->arfcn[extra_cnf] = arfcn; + mph_power_cnf->rx_lev[extra_cnf] = (U8)(rxlev/no_of_attempts); + + extra_cnf--; + } + else + { + TRACE_EVENT_P2("MPH_POWER_CNF crossover, i_cnf: %d extra_cnf: %d", + i_cnf, extra_cnf); + } + } + + /* After adding a carrier to MPH_POWER_CNF, the particular carrier will be + * replaced by the Last carrier of that region. So that we could avoid + * searching the already added (MPH_POWER_CNF) carrier. + */ + if(where_to_add NEQ REACHED_THE_MAXIMUM) + { + last = p_results[region]->power_array + (p_results_size[region]-1);/*lint !e644 region may not have been initialized */ + + pbig->accum_power_result = min_rxlev[band_index] - 1; + + cs_power_array_swap_arfcn(pbig, last); + + p_results_size[region]--; + } + else + { + TRACE_EVENT_P4("RTM->PWR array size, E:%d A:%d i_cnf:%d extra_cnf:%d", + p_results_size[0], p_results_size[1],i_cnf, + (MAX_CHANNELS-(extra_cnf+1))); + } + } + } + else + break; /* no level found higher or equal than min_rxlev -> break sort/fill */ + + }/* while (i_cnf < MAX_CHANNELS) */ + + mph_power_cnf->num_of_chan = i_cnf; + + /* Obtain the number of extra channels(41 to 60) added to + * Power cnf array + */ + extra_cnf = MAX_CHANNELS - (extra_cnf+1); + + /* Obtain the amount of space available for extra channels + * in power_cnf array + */ + extra_space = MAX_CHANNELS - i_cnf; + + TRACE_EVENT_P3("After Sorting, i_cnf:%d extra_cnf:%d extra_space:%d", + i_cnf,extra_cnf,(extra_space-extra_cnf)); + + if(extra_cnf AND extra_space) + { + /* Extra channels are present and space to fit them is also available */ + if(extra_space < extra_cnf) + { + /* Some of the extra channels(41 to 60) are overwritten + * Ignore them + */ + extra_cnf = extra_space; + } + + /* Reordering the carriers(41 to 60) from Strongest to Weakest */ + cs_reorder_the_extra_carriers(extra_cnf); + + /* Move the extra carriers up in power_cnf array, in case there + * is empty gap between i_cnf and extra_cnf channels + */ + if(extra_space > extra_cnf) + cs_move_extra_carriers(i_cnf, extra_cnf); + + mph_power_cnf->num_of_chan += extra_cnf; + } + + TRACE_EVENT_P5( + "No. of carriers in POWER_CNF:%d (B_GSM_EGSM:%d, B_1800:%d, B_850:%d, B_1900:%d)", + mph_power_cnf->num_of_chan, + no_of_carriers_per_band[0], no_of_carriers_per_band[1], + no_of_carriers_per_band[2], no_of_carriers_per_band[3]); +} + + + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : get_band | ++--------------------------------------------------------------------+ + + PURPOSE : The function extracts the frequency band from the given + 'arfcn' parameter. +*/ + +GLOBAL UBYTE get_band (USHORT arfcn) +{ + UBYTE local_std = STD_GET_FROM_ARFCN(arfcn); + UBYTE sc_band; + + if (local_std EQ 0) + local_std = std; + + switch (local_std) + { + case STD_900: + sc_band = BAND_GSM_900; + break; + + case STD_EGSM: + sc_band = BAND_E_GSM; + break; + + case STD_1800: + sc_band = BAND_DCS_1800; + break; + + case STD_1900: + sc_band = BAND_PCS_1900; + break; + + case STD_850: + sc_band = BAND_GSM_850; + break; + + case STD_DUAL: + if (arfcn >= LOW_CHANNEL_1800) + sc_band = BAND_DCS_1800; + else + sc_band = BAND_GSM_900; + break; + + case STD_DUAL_EGSM: + if (arfcn >= LOW_CHANNEL_EGSM) + sc_band = BAND_E_GSM; + else if (arfcn >= LOW_CHANNEL_1800) + sc_band = BAND_DCS_1800; + else if (arfcn EQ CHANNEL_0) + sc_band = BAND_E_GSM; + else + sc_band = BAND_GSM_900; + break; + + case STD_DUAL_US: + if (arfcn >= LOW_CHANNEL_1900) + sc_band = BAND_PCS_1900; + else + sc_band = BAND_GSM_850; + break; + default: + sc_band = 0; + break; + } + /* this trace causes a lot of trace load; switch on only if needed + TRACE_EVENT_P2 ("[%u] sc_band=%02x", arfcn&ARFCN_MASK, sc_band); + */ + return sc_band; +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_increment_bfc | ++--------------------------------------------------------------------+ + + PURPOSE : The function increments the BCCH fail counter. This + counter is decremented on every invalid BCCH block read + during CS. It is incremented on evry valid block read on + BCCH during CS. Valid means in this case that there was a + SYS Info decodable in the block on the BCCH. There is a + maximum value to start with and when the counter reaches + 0 we switch back to wide band search mode for further + MPHC_NETWORK_SYNC_REQs (if any). +*/ + +GLOBAL void cs_increment_bfc (void) +{ + alr_data->cs_data.bcch_fail_count += 1; + if(alr_data->cs_data.bcch_fail_count > CS_BCCH_FAIL_COUNT_MAX) + alr_data->cs_data.bcch_fail_count = CS_BCCH_FAIL_COUNT_MAX; +} + + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_decrement_bfc | ++--------------------------------------------------------------------+ + + PURPOSE : The function decrements the BCCH fail counter. This + counter is decremented on every invalid BCCH block read + during CS. It is incremented on evry valid block read on + BCCH during CS. Valid means in this case that there was a + SYS Info decodable in the block on the BCCH. There is a + maximum value to start with and when the counter reaches + 0 we switch back to wide band search mode for further + MPHC_NETWORK_SYNC_REQs (if any). +*/ + +GLOBAL void cs_decrement_bfc (void) +{ + if(alr_data->cs_data.bcch_fail_count < 3) + { + alr_data->cs_data.bcch_fail_count = 0; + alr_data->cs_data.search_mode = SM_WIDE_MODE; + } + else + alr_data->cs_data.bcch_fail_count -= 2; + +} + + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_set_wideband_sync | ++--------------------------------------------------------------------+ + + PURPOSE : The function sets wide band search mode for further + MPHC_NETWORK_SYNC_REQs (if any). +*/ + +GLOBAL void cs_set_wideband_sync (void) +{ + alr_data->cs_data.search_mode = SM_WIDE_MODE; +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_is_in_black_list | ++--------------------------------------------------------------------+ + + PURPOSE : The function checks whether the given carrier is in the + Blacklist or not + CSI-LLD section: 4.1.3.4.2.1 +*/ + +LOCAL BOOL cs_is_in_black_list(U8 region,U16 arfcn) +{ + if((region EQ EUROPEAN_REGION) OR (region EQ AMERICAN_REGION)) + { + if(alr_data->cs_data.p_power_req->search_mode EQ FULL_SEARCH_MODE) + { + return FALSE; + } + + return(srv_get_channel((T_LIST*)&alr_data->cs_data.p_power_req->black_list.list[region], + arfcn&ARFCN_MASK)); + } + + return FALSE; +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_find_inactive_carriers | ++--------------------------------------------------------------------+ + + PURPOSE : 1. Finds all inactive carriers + 2. Sets the RxLev of all Blacklisted carriers to less than + LOWER_RXLEV_THRESHOLD + CSI-LLD Section: 4.1.3.8.2.2.1 + CSI-LLD Section: 4.2 +*/ + +LOCAL void cs_find_inactive_carriers (T_POWER_MEAS **p_results, + U16 p_results_size[2],U8 *std, + U8 no_of_attempts, SHORT *min_rxlev) +{ + T_POWER_ARRAY* parray, *last; + U16 j, arfcn; + U8 i, x; + T_MPH_POWER_CNF* mph_power_cnf = alr_data->cs_data.p_power_cnf; + + TRACE_FUNCTION("cs_find_inactive_carriers ()"); + + /* Loop through both regions */ + for (i=0;i<MAX_REGIONS;i++) + { + if((p_results_size[i]) AND (p_results[i] NEQ NULL)) + { + parray = p_results[i]->power_array; + + for (j=0; j<p_results_size[i];) + { + arfcn = ARFCN_STD_TO_G23(parray->radio_freq, std[i]); + + /* Pointer to the Last Power array for a particular region */ + last = (p_results[i]->power_array + (p_results_size[i]-1)); + get_band_index_from_arfcn(arfcn, x, std[i]); + if (parray->accum_power_result < min_rxlev[x]) + { + /* Inactive carrier */ + srv_set_channel((T_LIST*)&mph_power_cnf->inactive_carrier_list.list[i], + arfcn&ARFCN_MASK); + + /* Replace inactive carrier with the last active carrier */ + cs_power_array_swap_arfcn(parray,last); + + /* Decrement the power array size to exclude this carrier */ + p_results_size[i]--; + } + else if(cs_is_in_black_list(i, (U16)(arfcn&ARFCN_MASK))) + { + /* Carrier is black listed. No need to consider this */ + parray->accum_power_result = min_rxlev[x]-1; + + /* Replace inactive carrier with the last active carrier */ + cs_power_array_swap_arfcn(parray,last); + + /* Decrement the power array size to exclude this carrier */ + p_results_size[i]--; + + } + else + { + j++, parray++; + } + } /* for size */ + } /* if size */ + } /* MAX_REGIONS */ +} + + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_whitelist_handle | ++--------------------------------------------------------------------+ + + PURPOSE : This function puts the White carriers at the top of the + MPH_POWER_CNF list + CSI-LLD 4.1.3.4.2.7 +*/ + +LOCAL U8 cs_add_whitelist_carriers(U16 p_results_size[2], U8 std, U8 no_of_attempts, + SHORT *min_rxlev, + T_POWER_MEAS *presults, + U8 no_of_carriers_per_band[4]) +{ + T_MPH_POWER_CNF* mph_power_cnf = alr_data->cs_data.p_power_cnf; + T_MPH_POWER_REQ* mph_power_req = alr_data->cs_data.p_power_req; + U8 i_cnf,j, where_to_add = DO_NOT_ADD; + U8 region = mph_power_req->white_list.region; + U16 i,arfcn, temp_arfcn; + U8 temp_rxlev; + UBYTE x; + T_POWER_ARRAY *parray, *last; + + TRACE_FUNCTION ("cs_add_whitelist_carriers()"); + + i_cnf = 0; + + if((p_results_size[region]) AND (presults NEQ NULL)) + { + parray = presults->power_array; + } + else + return i_cnf; + + /* Move the white list carriers to MPH_POWER_CNF array first */ + for (i=0; (i<p_results_size[region] AND i_cnf < 32); ) + { + + /* Convert to GSM standard format from L1 format*/ + arfcn = ARFCN_STD_TO_G23(parray->radio_freq,std); + get_band_index_from_arfcn(arfcn, x, std); + if (parray->accum_power_result > (min_rxlev[x] - 1)) + { + if(srv_get_channel((T_LIST*)&mph_power_req->white_list.list, arfcn&ARFCN_MASK)) + { + + /* Channel is present in white list. Add this to top of MPH_POWER_CNF */ + arfcn = STD_ADD_TO_ARFCN(arfcn, std); + + /* US_BIT should be used to differentiate an US frequency channel. */ + switch (std) + { + case STD_1900: + case STD_850: + case STD_DUAL_US: + arfcn |= US_BIT; + break; + default: + break; + } + + where_to_add = cs_restrict_max_carriers_per_band(arfcn&ARFCN_MASK, std, + no_of_carriers_per_band, p_results_size, x); + + if(where_to_add NEQ DO_NOT_ADD) + { + /* White list carriers are always added at the top */ + mph_power_cnf->arfcn[i_cnf] = arfcn; + mph_power_cnf->rx_lev[i_cnf] = (U8)(parray->accum_power_result/no_of_attempts); + i_cnf++; + } + else + { + TRACE_EVENT_P2("[WL] [DO_NOT_ADD] [%d] : [%c]", arfcn&ARFCN_MASK, + (region ? 'A' :'E')); + } + + /* Exclude this carrier */ + parray->accum_power_result = min_rxlev[x]-1; + + last = presults->power_array + (p_results_size[region] - 1); + + /* Swapping the current carrier with the last carrier */ + cs_power_array_swap_arfcn(parray, last); + + /* Decrement the power array counter to exclude the above carrier */ + p_results_size[region]--; + + } /* Present in White List */ + else + { + i++; parray++; + } + } /* Active Carrier */ + else + { + TRACE_EVENT_P2("[WL] [IA] [%d] : [%c]", parray->radio_freq, + (region ? 'A' :'E')); + i++; parray++; + } + } /* i < max */ + + /* Assign the total Number of white list channels */ + mph_power_cnf->num_of_white_list_chan = i_cnf; + + TRACE_EVENT_P1("[WL] no. of channels : %d ",mph_power_cnf->num_of_white_list_chan); + + /* + * Sort the white list carriers added to power_cnf array on the + * basis of their field strength + */ + for(i=0; i < i_cnf; i++) + { + for(j=i+1; j<i_cnf; j++) + { + if(mph_power_cnf->rx_lev[i] < mph_power_cnf->rx_lev[j]) + { + temp_rxlev = mph_power_cnf->rx_lev[i]; + temp_arfcn = mph_power_cnf->arfcn[i]; + + mph_power_cnf->rx_lev[i] = mph_power_cnf->rx_lev[j]; + mph_power_cnf->arfcn[i] = mph_power_cnf->arfcn[j]; + + mph_power_cnf->rx_lev[j] = temp_rxlev; + mph_power_cnf->arfcn[j] = temp_arfcn; + } + } + } + + return (i_cnf); +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : | +| cs_restrict_max_carriers_per_band | ++--------------------------------------------------------------------+ + PURPOSE : This function is to handle the Multiple Frequency Bands + in a Region. Will help to add the minimum(40) carriers per + band on top of the power cnf and the remaining(40 to 60) + carriers will be added in at the end (Below the Normal (40) + carriers of all band). + CSI-LLD : +*/ + +U8 cs_restrict_max_carriers_per_band (U16 arfcn, U8 std, + U8 no_of_carriers_per_band[4], U16 p_results_size[2], UBYTE x) +{ + + T_POWER_MEAS *presults; + T_POWER_ARRAY *parray, *last; + U16 i; + U8 index = 0xff,just_reached_the_maximum=FALSE; + U8 min_rxlev, region, where_to_add = DO_NOT_ADD; + + min_rxlev = IS_EXT_MEAS_RUNNING ? (SHRT_MIN+1) : + alr_data->cs_data.p_power_req->lower_rxlevel_threshold[x]; + + switch(std) + { + case STD_900 : + case STD_DUAL : + case STD_EGSM : + case STD_DUAL_EGSM : + case STD_1800 : + if(INRANGE (CHANNEL_0, arfcn, HIGH_CHANNEL_900) OR + INRANGE(LOW_CHANNEL_EGSM, arfcn, HIGH_CHANNEL_EGSM)) + { + index = 0; + } + else if(INRANGE (LOW_CHANNEL_1800, arfcn, HIGH_CHANNEL_1800)) + { + index = 1; + } + else + { + TRACE_ERROR("[European]Invalid Carrier"); + return DO_NOT_ADD; + } + region = EUROPEAN_REGION; + break; + case STD_DUAL_US : + case STD_850 : + case STD_1900 : + if(INRANGE (LOW_CHANNEL_850, arfcn, HIGH_CHANNEL_850)) + { + index = 2; + } + else if(INRANGE (LOW_CHANNEL_1900, arfcn, HIGH_CHANNEL_1900)) + { + index = 3; + } + else + { + TRACE_ERROR("[American]Invalid Carrier"); + return DO_NOT_ADD; + } + region = AMERICAN_REGION; + break; + } /* end switch */ + + if(index < 4) + { + if(no_of_carriers_per_band[index] < MIN_CHANNELS_PER_BAND) + { + /* Increment counter for corresponding band */ + no_of_carriers_per_band[index]++; + + if(no_of_carriers_per_band[index] EQ MIN_CHANNELS_PER_BAND) + { + TRACE_EVENT_P5( + "[%d]Band, 40 channels added (B_GSM_EGSM%d, B_1800:%d, B_850:%d, B_1900:%d)", + index, + no_of_carriers_per_band[0], no_of_carriers_per_band[1], + no_of_carriers_per_band[2], no_of_carriers_per_band[3]); + } + + /* Add at the top of MPH_POWER_CNF list */ + where_to_add = ADD_AT_THE_TOP; + } + else if(no_of_carriers_per_band[index] <= MAX_CHANNELS_PER_BAND) + { + /* Increment counter for corresponding band */ + no_of_carriers_per_band[index]++; + + /* Add at the bottom of MPH_POWER_CNF list */ + where_to_add = ADD_AT_THE_BOTTOM; + + if(no_of_carriers_per_band[index] EQ (MAX_CHANNELS_PER_BAND + 1)) + { + TRACE_EVENT_P5( + "[%d]Band, 60 channels added (B_GSM_EGSM%d, B_1800:%d, B_850:%d, B_1900:%d)", + index, + no_of_carriers_per_band[0], no_of_carriers_per_band[1], + no_of_carriers_per_band[2], no_of_carriers_per_band[3]); + + just_reached_the_maximum = TRUE; + + where_to_add = REACHED_THE_MAXIMUM; + } + } + else + { + where_to_add = DO_NOT_ADD; + } + } + else + { + TRACE_ERROR("Unknown Band Index"); + return DO_NOT_ADD; + } /* if index < 4 */ + + /* When Max number of channels(60) are added for a particular band, + * all the remaining carriers belonging to that band are excluded from + * further sorting + */ + if(just_reached_the_maximum) + { + BOOL exclude; + U16 l3_arfcn; + + if (region EQ AMERICAN_REGION)/*lint !e644 region may not have been initialized */ + { /* American band */ + presults = alr_data->cs_data.p_results2; + } + else + { /* European band */ + presults = alr_data->cs_data.p_results1; + } + + TRACE_EVENT_P3("[%d]Index, E:%d A:%d", + index, p_results_size[0], p_results_size[1]); + + if((presults NEQ NULL) AND (p_results_size[region]))/*lint !e644 region may not have been initialized */ + { + for(i=0, parray = presults->power_array; i < p_results_size[region];) + { + exclude = FALSE; + l3_arfcn = ARFCN_STD_TO_G23(parray->radio_freq, std); + + switch(index) + { + case 0 : + if(INRANGE (LOW_CHANNEL_900, l3_arfcn, HIGH_CHANNEL_900) OR + INRANGE(LOW_CHANNEL_EGSM, l3_arfcn, HIGH_CHANNEL_EGSM)) + { + exclude = TRUE; + } + break; + case 1: + if(INRANGE (LOW_CHANNEL_1800, l3_arfcn, HIGH_CHANNEL_1800)) + { + exclude = TRUE; + } + break; + case 2 : + if(INRANGE (LOW_CHANNEL_850, l3_arfcn, HIGH_CHANNEL_850)) + { + exclude = TRUE; + } + break; + case 3: + if(INRANGE (LOW_CHANNEL_1900, l3_arfcn, HIGH_CHANNEL_1900)) + { + exclude = TRUE; + } + break; + default : + break; + } /* end switch */ + + if(exclude) + { + last = presults->power_array + (p_results_size[region] - 1); /*lint !e644 region may not have been initialized */ + + /* Exclude this carrier */ + parray->accum_power_result = min_rxlev-1; + + /* Swaping the Current carrier with the last carrier */ + cs_power_array_swap_arfcn(parray, last); + + /* Decrement the power array counter to exclude the above carrier */ + p_results_size[region]--; + } + else + { + parray++; i++; + } + } /* power array size */ + } /* end if(just_reached_the_maximum */ + } /* presults NEQ NULL */ + + return where_to_add; +} +#endif + + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : cs_reorder_the_extra_carriers | ++--------------------------------------------------------------------+ + PURPOSE : Extra Carriers (More than 40 and below 60) are stored at + the bottom of the MPH_POWER_CNF. But these are stored in + ascending order (if you see from the TOP). This needs to + be reordered (means Strongest carrier should go to top). +*/ + +LOCAL void cs_reorder_the_extra_carriers(U8 extra_cnf) +{ + T_MPH_POWER_CNF* mph_power_cnf = alr_data->cs_data.p_power_cnf; + U8 i,j,count,max_count,temp_rxlevel; + U16 temp_arfcn; + + TRACE_FUNCTION("cs_reorder_the_extra_carriers"); + + i = MAX_CHANNELS - 1; + j = MAX_CHANNELS - extra_cnf; + max_count = extra_cnf/2; + + + for(count=0; count < max_count; i--, j++, count++) + { + temp_arfcn = mph_power_cnf->arfcn[i]; + temp_rxlevel = mph_power_cnf->rx_lev[i]; + + mph_power_cnf->arfcn[i] = mph_power_cnf->arfcn[j]; + mph_power_cnf->rx_lev[i] = mph_power_cnf->rx_lev[j]; + + mph_power_cnf->arfcn[j] = temp_arfcn; + mph_power_cnf->rx_lev[j] = temp_rxlevel; + + } + +} + +/* ++--------------------------------------------------------------------+ +| PROJECT : GSM-PS (8403) MODULE : ALR_CS | +| STATE : code ROUTINE : | +| cs_move_extra_carriers | ++--------------------------------------------------------------------+ + PURPOSE : Extra Carriers (More than 40 and below 60) are stored at + the bottom of the MPH_POWER_CNF. These carriers needs to + be rearranged below the normal (Strangest 40 Carriers) + carriers +*/ + +LOCAL void cs_move_extra_carriers(U8 i_cnf, U8 extra_cnf) +{ + T_MPH_POWER_CNF* mph_power_cnf = alr_data->cs_data.p_power_cnf; + + /* + * Add the extra carriers below Normal carrier + */ + TRACE_FUNCTION("cs_move_extra_carriers"); + + /* Move the extra carriers below the Normal carriers */ + memmove (&mph_power_cnf->arfcn[i_cnf], + &mph_power_cnf->arfcn[MAX_CHANNELS - extra_cnf], + sizeof (mph_power_cnf->arfcn[0]) * (extra_cnf)); + + memmove (&mph_power_cnf->rx_lev[i_cnf], + &mph_power_cnf->rx_lev[MAX_CHANNELS - extra_cnf], + sizeof (mph_power_cnf->rx_lev[0]) * (extra_cnf)); + +}