FreeCalypso > hg > fc-magnetite
view src/g23m-fad/fad/fad_rcvf.c @ 639:026c98f757a6
tpudrv12.h & targets/gtm900.h: our current support is for MGC2GSMT version only
As it turns out, there exist two different Huawei-made hw platforms both
bearing the marketing name GTM900-B: one is MG01GSMT, the other is MGC2GSMT.
The two are NOT fw-compatible: aside from flash chip differences which
should be handled by autodetection, the two hw platforms are already known
to have different RFFEs with different control signals, and there may be
other differences not yet known. Our current gtm900 build target is for
MGC2GSMT only; we do not yet have a specimen of MG01GSMT on hand, hence
no support for that version will be possible until and unless someone
provides one.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 30 Jan 2020 18:19:01 +0000 |
parents | 90eb61ecd093 |
children |
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/* +----------------------------------------------------------------------------- | Project : GSM-F&D (8411) | Modul : FAD_RCVF +----------------------------------------------------------------------------- | 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 procedures and functions for | the component Fax Adaptation 3.45 of the mobile station +----------------------------------------------------------------------------- */ #ifndef FAD_RCVF_C #define FAD_RCVF_C #endif #define ENTITY_FAD /*==== INCLUDES ===================================================*/ #include <string.h> #include "typedefs.h" #include "vsi.h" #include "macdef.h" #include "pconst.cdg" #include "custom.h" #include "gsm.h" #include "cnf_fad.h" #include "mon_fad.h" #include "prim.h" #include "pei.h" #include "tok.h" #include "ccdapi.h" #include "fad.h" /*==== CONST =======================================================*/ /*==== TYPES =======================================================*/ /*==== VAR EXPORT ==================================================*/ /*==== VAR LOCAL ===================================================*/ /*==== FUNCTIONS ===================================================*/ /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : rcv_init | +--------------------------------------------------------------------+ PURPOSE : initialise the fad data for the rcv formatter process */ GLOBAL void rcv_init (void) { T_RCV *rcv = &fad_data->rcv; TRACE_FUNCTION ("rcv_init()"); INIT_STATE (RCV, SYNC_RCV); INIT_STATE (RCVSUB, SUB_IDLE); rcv->data_in_rbm = FALSE; rcv->preamble_pending = FALSE; rcv->bcs_pending = TRUE; rcv->FlagFound = 0; rcv->train_flg = FALSE; /*???*/ rcv_ResetFormatter (); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : rcv_ResetFormatter | +--------------------------------------------------------------------+ PURPOSE : */ GLOBAL void rcv_ResetFormatter (void) { T_RCV *rcv = &fad_data->rcv; TRACE_FUNCTION ("rcv_ResetFormatter()"); SET_STATE (RCVSUB, SUB_IDLE); rcv->bytes_good = 0; rcv->bytes_expect = 0; rcv->bytes_rcvd = 0; rcv->prim_ready = FALSE; rcv->hdlc_len = 0; rcv->bcs_data_len = 0; rcv->data_bufpos = 0; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : CheckBcsFrame | +--------------------------------------------------------------------+ PURPOSE : get number of correct IDENT and data bytes (BCS data) */ LOCAL void CheckBcsFrame (UBYTE *ident_ratio, UBYTE *info_ratio, UBYTE *bcs_data, UBYTE ident, UBYTE info, USHORT bcs_len) { UBYTE i, pream_good = 0, ident_good = 0; TRACE_FUNCTION ("CheckBcsFrame()"); if (!bcs_len) return; for (i = 0; i < bcs_len; bcs_data++, i++) { if (i & 0x01) { if (*bcs_data EQ info) pream_good++; } else { if (*bcs_data EQ ident) ident_good++; } } bcs_len >>= 1; if (bcs_len) { *ident_ratio = (ident_good * 100) / bcs_len; *info_ratio = (pream_good * 100) / bcs_len; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : rcv_FrameType | +--------------------------------------------------------------------+ PURPOSE : */ GLOBAL UBYTE rcv_FrameType(T_FD *pFD) { UBYTE *bcs_data, fr_type, len, ident_ratio, info_ratio; #ifdef _SIMULATION_ TRACE_FUNCTION ("rcv_FrameType()"); #endif fr_type = pFD->type; len = pFD->len; bcs_data = pFD->buf; switch (GET_STATE (RCV)) { case SYNC_RCV: switch (fr_type) { case FR_STATUS: CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_BCS_REC, HDLC_FLAG, len); if (ident_ratio < BCS_TOLERANCE) return (FT_NONE); /* not a BCS frame */ if (info_ratio >= BCS_TOLERANCE) return (FT_PREAMBLE); break; case FR_TRAIN: CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_MSG_REC, VAL_TRAIN, len); if (ident_ratio >= TRAIN_TOLERANCE) break; /* STATUS-TRAIN frame */ CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_MSG_TRA, VAL_TRAIN, len); if (ident_ratio >= TRAIN_TOLERANCE) return (FT_TRAIN_RESPONSE); /* response to TRAINING */ return (FT_NONE); } break; case PREAM_RCV: switch (fr_type) { case FR_STATUS: CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_BCS_REC, VAL_TCF, len); if (ident_ratio < BCS_TOLERANCE) return (FT_NONE); /* not a BCS frame */ if (info_ratio >= BCS_TOLERANCE) return (FT_PREAMBLE); break; default: return (FT_NONE); } break; case BCS_RCV: if (fr_type EQ FR_STATUS) { CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_BCS_REC, HDLC_FLAG, len); if (ident_ratio < BCS_TOLERANCE) return (FT_NONE); /* not a BCS frame */ if (GET_STATE (RCVSUB) EQ SUB_PREAMBLE) { if (info_ratio EQ 100) return (FT_NONE); /* still receiving PREAMBLE */ SET_STATE (RCVSUB, SUB_DATA); } } break; default: break; } return (fr_type); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : rcv_SetHdlcFrame | +--------------------------------------------------------------------+ PURPOSE : set BCS data as HDLC frame for T30/ACI */ GLOBAL void rcv_SetHdlcFrame (T_FD *pFD, UBYTE *hdlc_data, USHORT *hdlc_len) { UBYTE *bcs_data = pFD->buf; USHORT flag_found = 0, i, k; #define HDLC_MAX 2 #ifdef _SIMULATION_ TRACE_FUNCTION ("rcv_SetHdlcFrame()"); #endif for (i = 0; i < pFD->len; i++, bcs_data++) { if (i & 0x0001) { *hdlc_data++ = *bcs_data; (*hdlc_len)++; /* * if preamble is disturbed * discard erroneous HDLC data */ if (*hdlc_len > HDLC_MAX) { /* * check last HDLC data; allow trailing HDLC flags */ for (k = *hdlc_len - HDLC_MAX; k < *hdlc_len; k++) { if (fad_data->rcv.hdlc[k] EQ HDLC_FLAG) { flag_found++; TRACE_EVENT("HDLC flags during SUB_DATA found"); } if (flag_found EQ HDLC_MAX) { TRACE_EVENT("HDLC buffer cleared again"); hdlc_data = fad_data->rcv.hdlc; *hdlc_len = 0; } } } } } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : rcv_SetErrorRatio | +--------------------------------------------------------------------+ PURPOSE : calculate no. of correctly received TCF bytes */ GLOBAL void rcv_SetErrorRatio(T_FD *pFD) { void t30_ker_debug(CHAR *header, UBYTE *buf, USHORT len); UBYTE *buf = pFD->buf, i; TRACE_FUNCTION ("rcv_SetErrorRatio()"); #if defined TRACE_FAD_DL_TCF || defined _SIMULATION_ t30_ker_debug("TCF", buf, pFD->len); #endif for (i = 0; i < pFD->len; i++, buf++) { if (*buf EQ VAL_TCF) { fad_data->rcv.bytes_good++; } } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : rcv_StoreMsgData | +--------------------------------------------------------------------+ PURPOSE : pass SDU to Receive Buffer Manager (RBM) */ GLOBAL BOOL rcv_StoreMsgData (T_FD *pFD, BOOL *primAvail) { TRACE_FUNCTION ("rcv_StoreMsgData()"); return rbm_store_frames(pFD, primAvail); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : rcv_SetFinalBuffer | +--------------------------------------------------------------------+ PURPOSE : set RBM for final MSG data */ GLOBAL void rcv_SetFinalBuffer (void) { T_FAD_DATA_IND *fad_data_ind; TRACE_FUNCTION ("rcv_SetFinalBuffer()"); rcv_GetMsgData (&fad_data_ind, FALSE); sig_rcv_ker_msg_ind (fad_data_ind); fad_data->rcv.t30_req_frames = FALSE; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | | STATE : code ROUTINE : rcv_GetMsgData | +--------------------------------------------------------------------+ PURPOSE : */ GLOBAL BOOL rcv_GetMsgData (T_FAD_DATA_IND **fad_data_ind, BOOL data_incoming) { TRACE_FUNCTION ("rcv_GetMsgData()"); *fad_data_ind = rbm_get_prim (); if (data_incoming) { /* MSG data still being received */ if (*fad_data_ind EQ NULL) return FALSE; (*fad_data_ind)->final = FALSE; } else { /* MSG data no longer being received - SYNC detected */ if (*fad_data_ind NEQ NULL) (*fad_data_ind)->final = FALSE; else { *fad_data_ind = rbm_get_curr_prim (); /* buffer empty - end of MSG phase */ fad_data->rcv.data_in_rbm = FALSE; if (*fad_data_ind EQ NULL) return FALSE; (*fad_data_ind)->final = TRUE; } } return (TRUE); }