FreeCalypso > hg > fc-tourmaline
view src/nucleus/tm_defs.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 | 381dc53d6ccb |
| children |
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/*************************************************************************/ /* */ /* Copyright Mentor Graphics Corporation 2002 */ /* All Rights Reserved. */ /* */ /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ /* SUBJECT TO LICENSE TERMS. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* tm_defs.h Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* TM - Timer Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains data structure definitions and constants for */ /* the Timer Management component. */ /* */ /* DATA STRUCTURES */ /* */ /* TM_TCB Timer control block */ /* TM_APP_TCB Application timer control */ /* block */ /* */ /* FUNCTIONS */ /* */ /* None */ /* */ /* DEPENDENCIES */ /* */ /* cs_defs.h Common service definitions */ /* tc_defs.h Thread control definitions */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Moved include files outside of */ /* the file #ifndef to allow the */ /* use of actual data structures, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 03-24-1998 Released version 1.3. */ /* 03-26-1999 Released 1.11m (new release */ /* numbering scheme) */ /* 04-17-2002 Released version 1.13m */ /* 11-07-2002 Released version 1.14 */ /*************************************************************************/ #include "cs_defs.h" /* Common service constants */ /* Check to see if the file has been included already. */ #ifndef TM_DEFS #define TM_DEFS /* Define constants local to this component. */ #define TM_TIMER_ID 0x54494d45UL #define TM_ACTIVE 0 #define TM_NOT_ACTIVE 1 #define TM_EXPIRED 2 #define TM_TASK_TIMER 0 #define TM_APPL_TIMER 1 /* Define the Timer Control Block data type. */ typedef struct TM_TCB_STRUCT { INT tm_timer_type; /* Application/Task */ UNSIGNED tm_remaining_time; /* Remaining time */ VOID *tm_information; /* Information pointer */ struct TM_TCB_STRUCT *tm_next_timer, /* Next timer in list */ *tm_previous_timer; /* Previous timer in list*/ } TM_TCB; /* Define Application's Timer Control Block data type. */ typedef struct TM_APP_TCB_STRUCT { CS_NODE tm_created; /* Node for linking to */ /* created timer list */ UNSIGNED tm_id; /* Internal TCB ID */ CHAR tm_name[NU_MAX_NAME]; /* Timer name */ VOID (*tm_expiration_routine)(UNSIGNED); /* Expiration function */ UNSIGNED tm_expiration_id; /* Expiration ID */ BOOLEAN tm_enabled; /* Timer enabled flag */ #if PAD_1 DATA_ELEMENT tc_padding[PAD_1]; #endif UNSIGNED tm_expirations; /* Number of expirations */ UNSIGNED tm_initial_time; /* Initial time */ UNSIGNED tm_reschedule_time; /* Reschedule time */ TM_TCB tm_actual_timer; /* Actual timer internals*/ } TM_APP_TCB; /* Include this file here, since it contains references to the timer definition structure that is defined by this file. */ #include "tc_defs.h" #endif /* TM_DEFS */
