FreeCalypso > hg > fc-tourmaline
view src/g23m-gprs/sm/sm_sequencer.h @ 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 : SM +----------------------------------------------------------------------------- | 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: Sequencer state machine definitions in the SM entity. | For design details, see: | 8010.908 SM Detailed Specification +---------------------------------------------------------------------------*/ /*==== DECLARATION CONTROL =================================================*/ #ifndef SM_SEQUENCER_H #define SM_SEQUENCER_H /*==== INCLUDES =============================================================*/ /*==== CONSTS ===============================================================*/ /*==== TYPES ================================================================*/ typedef enum { /* Incoming primitives */ SM_P_MMPM_ATTACH_IND, SM_P_MMPM_DETACH_IND, SM_P_SMREG_PDP_DEACTIVATE_REQ, SM_P_SM_STATUS_REQ, /* Events from Context Control */ SM_I_CONTEXT_ACTIVATION_OVERRIDE, SM_I_CONTEXT_DEACTIVATE_COMPLETED, SM_I_CONTEXT_TEAR_DOWN_DEACTIVATE, SM_I_CONTEXT_REACTIVATE_COMPLETED, /* Number of events */ SM_SEQUENCER_NUMBER_OF_EVENTS } T_SM_SEQUENCER_EVENT; /*==== EXPORTS ==============================================================*/ extern void sm_sequencer_init(void); extern void sm_sequencer_exit(void); extern void sm_sequencer(T_SM_SEQUENCER_EVENT event, void *data); #endif /* SM_SEQUENCER_H */ /*==== END OF FILE ==========================================================*/