FreeCalypso > hg > fc-tourmaline
view src/g23m-aci/gdd_dio/gdd_dio_txf.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> |
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date | Sun, 13 Jun 2021 18:17:53 +0000 |
parents | fa8dc04885d8 |
children |
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/* +----------------------------------------------------------------------------- | File : gdd_dio_txf.c +----------------------------------------------------------------------------- | 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 is part of the entity gdd_dio and implements the | tx service functions. +----------------------------------------------------------------------------- */ #define ENTITY_GDD_DIO /*==== INCLUDES =============================================================*/ #include "typedefs.h" /* to get Condat data types */ #include "vsi.h" /* to get a lot of macros */ /* DIO stuff */ #include "dio.h" #include "dio_il/dio_drv.h" /* GDD_DIO stuff */ /* We must define P_DIO_H, in order to avoid inclusion of p_dio.h. This is necessary due to the special fact, that "dio.h", which is included in the header "dio_io/dio_drv.h", mirrors the header "p_dio.h". */ #define P_DIO_H #include "gdd_dio.h" /* to get the global entity definitions */ #include "gdd_dio_con_mgr.h" #include "gdd_dio_queue.h" #include "gdd_dio_txf.h" #include "gdd_dio_drxf.h" /*==== CONST ================================================================*/ /*==== LOCAL VARS ===========================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /*==== PUBLIC FUNCTIONS =====================================================*/ GLOBAL void gdd_dio_tx_receive_buf(T_GDD_CON_HANDLE con_handle, T_dio_buffer * buf) { #ifdef GDD_MAKE_DTX_CONTEXT_SWITCH U32 signal = GDD_DIO_SIGNAL_RECEIVE_DATA | (U32)con_handle; #else /* GDD_MAKE_DTX_CONTEXT_SWITCH */ U32 signal = con_handle; #endif /* GDD_MAKE_DTX_CONTEXT_SWITCH */ TRACE_FUNCTION("[GDD] gdd_dio_tx_receive_buf()"); #ifdef MEMORY_SUPERVISION vsi_c_ssend(hCommGDD_DIO, signal, (T_VOID_STRUCT*)buf, sizeof(T_VOID_STRUCT*), __FILE__, __LINE__); #else vsi_c_ssend(hCommGDD_DIO, signal, (T_VOID_STRUCT*)buf, sizeof(T_VOID_STRUCT*)); #endif }