FreeCalypso > hg > fc-tourmaline
view src/g23m-gsm/dl/dl_dcch0.c @ 221:5bf097aeaad7
LLS: when turning off all LEDs on boot, skip LED-C
Having LLS turn off LED-A and LED-B on boot is normally unnecessary
(they should already be off in Iota), but it is harmless, hence this
logic is kept for robustness. However, having LLS read-modify-write
the BCICTL2 register (to turn off LED-C) creates a potential race
condition with FCHG writes to this register, especially in the case
when baseband switch-on is caused by VCHG and charging is expected
to start right away. Furthermore, control of the charging LED itself
(on those hw targets that have it) is the responsibility of the FCHG
SWE, hence LLS should leave it alone.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 26 Apr 2021 21:55:13 +0000 |
parents | fa8dc04885d8 |
children |
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/* +----------------------------------------------------------------------------- | Project : GSM-PS | Modul : DL_DCCH0 +----------------------------------------------------------------------------- | 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 functions for the stand alone | dedicated control channel (SDCCH) and the fast dedicated | control channel (FACCH) each with SAPI 0 of the component DL +----------------------------------------------------------------------------- */ #ifndef DL_DCCH0_C #define DL_DCCH0_C #define ENTITY_DL /*==== INCLUDES ===================================================*/ #include "typedefs.h" #include "string.h" #include "vsi.h" #include "pconst.cdg" #include "custom.h" #include "gsm.h" #include "mon_dl.h" #include "prim.h" #include "pei.h" #include "tok.h" #include "ccdapi.h" #include "dl.h" #include "dl_trc.h" /*==== EXPORT =====================================================*/ /*==== PRIVAT =====================================================*/ LOCAL void dcch0_resume_reconnect_req (T_PRIM * prim, U8 ch_type); /*==== VARIABLES ==================================================*/ /*==== FUNCTIONS ==================================================*/ /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : sdcch0_init_dl_data | +--------------------------------------------------------------------+ PURPOSE : Initialisation of DCCH data (SAPI 0) for an instance. */ GLOBAL void dcch0_init_dl_data (void) { GET_INSTANCE_DATA; T_CCH *pcch = &dl_data->cch[C_DCCH0]; TRACE_FUNCTION ("dcch0_init_dl_data()"); memset (pcch, 0, sizeof (T_CCH)); dcch3_init_dl_data (); /*Disabling SAPI 3 connections */ com_clear_queue (PS_SAPI_0); dl_data->rr_short_pd_buffer.l_buf = 0; if (dl_data->dcch0_in_msg) { COM_FREE_POINTER (dl_data->dcch0_in_msg); dl_data->dcch0_in_msg = NULL; } dl_data->RR_dedicated = FALSE; dl_data->dcch0_ch_type = 0; dl_data->dcch0_disc_request = FALSE; #if defined(DELAYED_SABM) dl_data->dcch0_sabm_delay = 0; dl_data->dcch0_sabm_flag = NOT_PRESENT_8BIT; #endif /* DELAYED_SABM */ #if defined(DELAYED_RELEASE_IND) dl_data->release_ind_delay = 0; dl_data->release_ind_ch_type = NOT_PRESENT_8BIT; #endif /* DELAYED_RELEASE_IND */ set_channel_state(C_DCCH0, STATE_IDLE_DL); sacch0_init_dl_data (); } #if defined(DELAYED_SABM) GLOBAL void dcch0_delay_sabm (T_CCH *pcch) { GET_INSTANCE_DATA; BOOL send_sabm = FALSE; if (dl_data->dcch0_sabm_flag EQ NOT_PRESENT_8BIT) { if ((pcch->ch_type EQ L2_CHANNEL_FACCH_F) OR (pcch->ch_type EQ L2_CHANNEL_FACCH_H)) { /* start delay */ pcch->vtx = EMPTY_CMD; /* send dummy only */ dl_data->dcch0_sabm_flag = SABM_CMD; dl_data->dcch0_sabm_delay = DL_FACCH_SABM_DELAY_VALUE; DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, pcch->ch_type, "delay SABM on FACCH"); } else { /* but for FACCH only */ send_sabm = TRUE; } } else /* this part is called also called during uplink opportunity */ { /* pending delay */ if (dl_data->dcch0_sabm_delay > 0) { dl_data->dcch0_sabm_delay--; DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, pcch->ch_type, "pending delayed SABM"); } else {/* finishing delay, send SABM with the current (next) uplink opportunity */ #if !defined(DL_TRACE_ENABLED) TRACE_EVENT ("delayed SABM"); #endif /* ! DL_TRACE_ENABLED*/ dl_data->dcch0_sabm_flag = NOT_PRESENT_8BIT; send_sabm = TRUE; DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, pcch->ch_type, "send delayed SABM"); } } if (send_sabm) { pcch->vtx = SABM_CMD; pcch->time_flag = TRUE; pcch->rc = 0; set_channel_state (C_DCCH0, STATE_CONTENTION_RESOLUTION); } } #endif /* DELAYED_SABM */ /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : sdcch0_establish_req | +--------------------------------------------------------------------+ PURPOSE : Establish Request for SDCCH SAPI 0. */ GLOBAL void dcch0_establish_req (T_DL_ESTABLISH_REQ * est_req) { GET_INSTANCE_DATA; T_CCH *pcch = &dl_data->cch[C_DCCH0]; TRACE_FUNCTION ("sdcch0_establish_req()"); DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, est_req->ch_type, "est req"); dl_data->dcch0_ch_type = pcch->ch_type = est_req->ch_type; TRACE_EVENT_WIN_P1 ("set dcch0_ch_type=%s", CH_TYPE_NAME[dl_data->dcch0_ch_type]); dl_data->dcch0_unserved = com_queue_awaiting_transmission (PS_SAPI_0) ? DL_UNSERVED : DL_ALL_DONE; switch (dl_data->state[C_DCCH0]) { case STATE_IDLE_DL: /* * initialize sacch buffer */ dl_data->sacch_act_buffer = meas_report_no_nc; dl_data->sacch_last_buffer= meas_report_no_nc; com_clear_queue (PS_SAPI_0); pcch->contention_resolution = TRUE; dl_data->dcch0_queue.switch_buffer = (T_DL_DATA_REQ*)est_req; dl_data->dcch0_disc_request = FALSE; #if defined(DELAYED_SABM) dcch0_delay_sabm(pcch); #else /* DELAYED_SABM */ pcch->vtx = SABM_CMD; pcch->time_flag = TRUE; pcch->rc = 0; set_channel_state (C_DCCH0, STATE_CONTENTION_RESOLUTION); #endif /* DELAYED_SABM */ TRACE_EVENT_WIN_P5 ("EST_REQ: %s SAPI=%u vtx=%s (%s#%u)", CH_TYPE_NAME[pcch->ch_type], est_req->sapi, VTX_NAME[pcch->vtx], __FILE10__, __LINE__); #if defined(DELAYED_SABM) dcch0_delay_sabm(pcch); #endif /* DELAYED_SABM */ break; case STATE_MULTIPLE_FRAME_ESTABLISHED: case STATE_TIMER_RECOVERY: if (est_req->sdu.l_buf EQ 0) { dcch3_init_dl_data (); /*Disabling SAPI 3 connections */ com_clear_queue (PS_SAPI_0); pcch->T200_counter = 0; pcch->contention_resolution = FALSE; pcch->vtx = SABM_CMD; pcch->time_flag = TRUE; pcch->rc = 0; set_channel_state (C_DCCH0, STATE_CONTENTION_RESOLUTION); TRACE_EVENT_WIN_P5 ("EST_REQ: %s SAPI=%u vtx=%s (%s#%u)", CH_TYPE_NAME[pcch->ch_type], est_req->sapi, VTX_NAME[pcch->vtx], __FILE10__, __LINE__); } else { dcch0_mdl_release_req (); } COM_FREE_POINTER (est_req); break; default: COM_FREE_POINTER (est_req); dcch0_mdl_release_req (); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : sdcch0_resume_req | +--------------------------------------------------------------------+ PURPOSE : Resume Request for SDCCH (SAPI 0). */ GLOBAL void dcch0_resume_req (T_DL_RESUME_REQ * resume_req) { TRACE_FUNCTION ("dcch0_resume_req()"); DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, resume_req->ch_type, "resume req"); dcch0_resume_reconnect_req( (T_PRIM *)D2P(resume_req), resume_req->ch_type); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : sdcch0_reconnect_req | +--------------------------------------------------------------------+ PURPOSE : Reconnect Request for SDCCH (SAPI 0). */ GLOBAL void dcch0_reconnect_req (T_DL_RECONNECT_REQ * reconnect_req) { TRACE_FUNCTION ("dcch0_reconnect_req()"); DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, reconnect_req->ch_type, "reconn req"); dcch0_resume_reconnect_req( (T_PRIM *)D2P (reconnect_req),reconnect_req->ch_type); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : dcch0_res_recon_req | +--------------------------------------------------------------------+ PURPOSE : This function processes Resume Request and Reconnect Request for SDCCH (SAPI 0). */ LOCAL void dcch0_resume_reconnect_req (T_PRIM * prim, U8 ch_type) { GET_INSTANCE_DATA; TRACE_FUNCTION ("dcch0_resume_reconnect_req()"); switch (dl_data->state[C_DCCH0]) { case STATE_SUSPENDED: case STATE_IDLE_DL: { T_CCH *pcch = &dl_data->cch[C_DCCH0]; dl_data->dcch0_ch_type = pcch->ch_type = ch_type; TRACE_EVENT_WIN_P1 ("set dcch0_ch_type=%s", CH_TYPE_NAME[dl_data->dcch0_ch_type]); com_restore_queue(PS_SAPI_0, (T_DL_DATA_REQ*)P2D(prim)); pcch->contention_resolution = FALSE; #if defined(DELAYED_SABM) dcch0_delay_sabm(dl_data, pcch); #else /* DELAYED_SABM */ pcch->vtx = SABM_CMD; pcch->time_flag = TRUE; pcch->rc = 0; set_channel_state (C_DCCH0, STATE_CONTENTION_RESOLUTION); #endif /* DELAYED_SABM */ if(prim->custom.opc EQ DL_RECONNECT_REQ) { TRACE_EVENT_WIN_P5 ("RECONN_REQ: %s SAPI=%u vtx=%s (%s#%u)", CH_TYPE_NAME[pcch->ch_type], PS_SAPI_0, VTX_NAME[pcch->vtx], __FILE10__, __LINE__); } else { TRACE_EVENT_WIN_P5 ("RESUME_REQ: %s SAPI=%u vtx=%s (%s#%u)", CH_TYPE_NAME[pcch->ch_type], PS_SAPI_0, VTX_NAME[pcch->vtx], __FILE10__, __LINE__); /* invalid measurement report first */ sacch0_reset_meas (); } break; } default: { COM_FREE_POINTER (P2D(prim)); } break; }/* endswitch */ } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : sdcch0_release_req | +--------------------------------------------------------------------+ PURPOSE : Release Request for SDCCH (SAPI 0). */ GLOBAL BOOL dcch0_release_req (T_DL_RELEASE_REQ * release_req) { GET_INSTANCE_DATA; BOOL bFree = TRUE; TRACE_FUNCTION ("dcch0_release_req()"); if (release_req->mode EQ DL_LOCAL_END_RELEASE) { DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, release_req->ch_type, "local end release req"); dcch0_init_dl_data (); bFree = FALSE; } else { DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, release_req->ch_type, "normal release req"); dl_data->cch[C_DCCH0].ch_type = release_req->ch_type; switch (dl_data->state[C_DCCH0]) { default: bFree = FALSE; break; case STATE_CONTENTION_RESOLUTION: case STATE_MULTIPLE_FRAME_ESTABLISHED: case STATE_TIMER_RECOVERY: if (!dl_data->dcch0_disc_request AND (dl_data->cch[C_DCCH0].vtx EQ RR_CMD)) { dl_data->dcch0_disc_request = TRUE; dcch3_init_dl_data (); /*Disabling SAPI 3 connections */ } else { dcch3_init_dl_data (); /*Disabling SAPI 3 connections */ com_prepare_DISC (C_DCCH0, release_req->sapi); } break; case STATE_AWAITING_RELEASE: dl_data->cch[C_DCCH0].T200_counter = 0; break; } } if (bFree EQ FALSE) { PREUSE (release_req, release_cnf, DL_RELEASE_CNF); release_cnf->indication = com_queue_awaiting_transmission (PS_SAPI_0) ? DL_UNSERVED : DL_ALL_DONE; PSENDX (RR, release_cnf); dcch0_init_dl_data (); } return bFree; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : sdcch0_mdl_release_req | +--------------------------------------------------------------------+ PURPOSE : Release Request from Mobility Management for SDCCH (SAPI 0). */ GLOBAL void dcch0_mdl_release_req (void) { GET_INSTANCE_DATA; TRACE_FUNCTION ("dcch0_mdl_release_req()"); DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, dl_data->cch[C_DCCH0].ch_type, "mdl rel req"); switch (dl_data->state[C_DCCH0]) { case STATE_CONTENTION_RESOLUTION: case STATE_AWAITING_RELEASE: drr_dl_release_cnf (dl_data->cch[C_DCCH0].ch_type, PS_SAPI_0, TRUE); break; case STATE_MULTIPLE_FRAME_ESTABLISHED: case STATE_TIMER_RECOVERY: drr_dl_release_ind (dl_data->cch[C_DCCH0].ch_type, PS_SAPI_0, NOT_PRESENT_8BIT, TRUE); break; default: break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : sdcch0_suspend_req | +--------------------------------------------------------------------+ PURPOSE : Suspend Request for SDCCH (SAPI 0). */ GLOBAL void dcch0_suspend_req (T_DL_SUSPEND_REQ * suspend_req) { GET_INSTANCE_DATA; T_CCH *pcch = &dl_data->cch[C_DCCH0]; TRACE_FUNCTION ("dcch0_suspend_req()"); DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, suspend_req->ch_type, "suspend req"); pcch->ch_type = suspend_req->ch_type; TRACE_EVENT_WIN_P1 ("reset dcch0_ch_type=%s ->0", CH_TYPE_NAME[dl_data->dcch0_ch_type]); dl_data->dcch0_ch_type = 0; switch (dl_data->state[C_DCCH0]) { case STATE_CONTENTION_RESOLUTION: case STATE_MULTIPLE_FRAME_ESTABLISHED: case STATE_TIMER_RECOVERY: case STATE_AWAITING_RELEASE: pcch->T200_counter = 0; pcch->time_flag = FALSE; pcch->contention_resolution = FALSE; set_channel_state (C_DCCH0, STATE_SUSPENDED); dcch3_init_dl_data (); /* Disabling SAPI 3 connections */ #if 0 /* yes, from now DL sends measurement reports also in suspended state */ /* * no further measurement reports */ sacch0_reset_meas (dl_data); #endif /* 0|1 */ break; default: TRACE_EVENT ("INVALID SUSPEND STATE"); break; } COM_FREE_POINTER (suspend_req); TRACE_EVENT_WIN_P5 ("SUSPEND_REQ: %s SAPI=%u vtx=%s (%s#%u)", CH_TYPE_NAME[pcch->ch_type], PS_SAPI_0, VTX_NAME[pcch->vtx], __FILE10__, __LINE__); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : dcch0_check_disc | +--------------------------------------------------------------------+ PURPOSE : DISC command frame on DCCH0. */ GLOBAL int dcch0_check_disc (int send) { GET_INSTANCE_DATA; TRACE_FUNCTION ("dcch0_check_disc()"); if (dl_data->dcch0_disc_request AND !(dl_data->cch[C_DCCH0].vtx EQ RR_CMD)) { dcch3_init_dl_data (); /*Disabling SAPI 3 connections */ com_prepare_DISC (C_DCCH0, PS_SAPI_0); dl_data->dcch0_disc_request = FALSE; #if defined(DELAYED_SABM) dl_data->dcch0_sabm_flag = NOT_PRESENT_8BIT; /* delete pending delayed SABM */ #endif /* DELAYED_SABM */ return uplink_awaiting_release (C_DCCH0, PS_SAPI_0); } else return send; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : dcch0_data_req | +--------------------------------------------------------------------+ PURPOSE : Data Request on SDCCH (SAPI 0). */ GLOBAL void dcch0_data_req (T_DL_DATA_REQ * data_req) { GET_INSTANCE_DATA; TRACE_FUNCTION ("sdcch0_data_req()"); dl_data->cch[C_DCCH0].ch_type = data_req->ch_type; switch (dl_data->state[C_DCCH0]) { case STATE_MULTIPLE_FRAME_ESTABLISHED: case STATE_TIMER_RECOVERY: case STATE_SUSPENDED: case STATE_CONTENTION_RESOLUTION: com_store_queue (PS_SAPI_0, data_req); break; default: COM_FREE_POINTER (data_req); break; } } #endif /* !DL_DCCH0_C */