FreeCalypso > hg > fc-tourmaline
view src/g23m-gprs/upm/upm_dispatcher_gsm.c @ 268:f2e52cab0a73
abb_inth.c: check all interrupt causes, not just one
The original code used if - else if - else if etc constructs, thus
the first detected interrupt was the only one handled. However,
Iota ITSTATREG is a clear-on-read register, thus if we only handle
the first detected interrupt and skip checking the others, then the
other interrupts will be lost, if more than one interrupt happened
to occur in one ABB interrupt handling cycle - a form of rare race
condition. Change the code to check all interrupts that were read
in this cycle.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 13 Jun 2021 18:17:53 +0000 |
parents | fa8dc04885d8 |
children |
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/*---------------------------------------------------------------------------- | Project : 3G PS | Module : UPM +----------------------------------------------------------------------------- | Copyright 2003 Texas Instruments. | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments . | 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. +----------------------------------------------------------------------------- | Purpose: This module implements the process dispatcher for GSM primitives | in the User Plane Manager (UPM) entity. | For design details, see: | 8010.939 UPM Detailed Specification +---------------------------------------------------------------------------*/ /*==== DECLARATION CONTROL =================================================*/ /*==== INCLUDES =============================================================*/ #include "upm.h" #ifndef UPM_WITHOUT_USER_PLANE #include "upm_dti_output_handler.h" #endif /*==== CONSTS ===============================================================*/ /*==== TYPES ================================================================*/ /*==== LOCALS ===============================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /*==== PUBLIC FUNCTIONS =====================================================*/ /* +------------------------------------------------------------------------------ | Function : upm_disp_mmpm_sequence_ind +------------------------------------------------------------------------------ | Description : Dispatch MMPM_SEQUENCE_IND | | Parameters : prim - received primitive +------------------------------------------------------------------------------ */ void upm_disp_mmpm_sequence_ind (T_MMPM_SEQUENCE_IND *prim) { (void)TRACE_FUNCTION("upm_disp_mmpm_sequence_ind"); upm_sndcp_dispatch_mmpm_sequence_ind(prim); } /* +------------------------------------------------------------------------------ | Function : upm_disp_sn_activate_cnf +------------------------------------------------------------------------------ | Description : Dispatch SN_ACTIVATE_CNF | | Parameters : prim - received primitive +------------------------------------------------------------------------------ */ void upm_disp_sn_activate_cnf (T_SN_ACTIVATE_CNF *prim) { struct T_CONTEXT_DATA *context; (void)TRACE_FUNCTION("upm_disp_sn_activate_cnf"); /* Find context data using NSAPI as index */ context = upm_get_context_data_from_nsapi(prim->nsapi); if (context != NULL) { /* Forward primitive to SNDCP Control */ upm_sndcp_control(context, UPM_P_SN_ACTIVATE_CNF, prim); } else { (void)TRACE_ERROR("Received SN_ACTIVATE_CNF for non-existing context " "- discarded!"); } } /* +------------------------------------------------------------------------------ | Function : upm_disp_sn_count_cnf +------------------------------------------------------------------------------ | Description : Dispatch SN_COUNT_CNF | | Parameters : prim - received primitive +------------------------------------------------------------------------------ */ void upm_disp_sn_count_cnf (T_SN_COUNT_CNF *prim) { struct T_CONTEXT_DATA *ptr_context_data; (void)TRACE_FUNCTION("upm_disp_sn_count_cnf"); ptr_context_data = upm_get_context_data_from_nsapi(prim->nsapi); if (ptr_context_data != NULL) { /* Forward primitive to SNDCP Control */ upm_sndcp_dispatch_sn_count_cnf(prim); } else { (void)TRACE_ERROR("Received SN_COUNT_CNF for non-existing context " "- discarded!"); } } /* +------------------------------------------------------------------------------ | Function : upm_disp_sn_deactivate_cnf +------------------------------------------------------------------------------ | Description : Dispatch SN_DEACTIVATE_CNF | | Parameters : prim - received primitive +------------------------------------------------------------------------------ */ void upm_disp_sn_deactivate_cnf (T_SN_DEACTIVATE_CNF *prim) { struct T_CONTEXT_DATA *ptr_context_data; (void)TRACE_FUNCTION("upm_disp_sn_deactivate_cnf"); ptr_context_data = upm_get_context_data_from_nsapi(prim->nsapi); if (ptr_context_data != NULL) { /* Forward primitive to SNDCP Control */ upm_sndcp_control(ptr_context_data, UPM_P_SN_DEACTIVATE_CNF, NULL); upm_check_for_released_context_and_release(ptr_context_data); } } /* +------------------------------------------------------------------------------ | Function : upm_disp_sn_modify_cnf +------------------------------------------------------------------------------ | Description : Dispatch SN_MODIFY_CNF | | Parameters : prim - received primitive +------------------------------------------------------------------------------ */ void upm_disp_sn_modify_cnf (T_SN_MODIFY_CNF *prim) { struct T_CONTEXT_DATA *context; (void)TRACE_FUNCTION("upm_disp_sn_modify_cnf"); /* Find context data using NSAPI as index */ context = upm_get_context_data_from_nsapi(prim->nsapi); if (context != NULL) { /* Forward primitive to SNDCP Control */ upm_sndcp_control(context, UPM_P_SN_MODIFY_CNF, prim); } else { (void)TRACE_ERROR("Received SN_MODIFY_CNF for non-existing context " "- discarded!"); } } /*==== END OF FILE ==========================================================*/