FreeCalypso > hg > fc-tourmaline
view src/g23m-gprs/llc/llc_itxf.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> |
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date | Sun, 13 Jun 2021 18:17:53 +0000 |
parents | fa8dc04885d8 |
children |
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/* +----------------------------------------------------------------------------- | Project : | Modul : +----------------------------------------------------------------------------- | 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 : Definitions for llc_itxf.c +----------------------------------------------------------------------------- */ #ifndef LLC_ITXF_H #define LLC_ITXF_H EXTERN void itx_init (void); EXTERN void itx_init_sapi (void); EXTERN void itx_send_next_frame (T_ABIT_REQ_TYPE req); EXTERN void itx_i_queue_clean (void); EXTERN void itx_i_queue_store ( #ifdef LL_DESC T_LL_DESC_REQ*, BOOL *store_failed #else T_LL_DATA_REQ*, BOOL *store_failed #endif ); EXTERN void itx_i_queue_set_status (T_IQ_STATUS status, T_FRAME_NUM num); #ifdef LL_2to1 EXTERN void itx_i_queue_get_ready (BOOL* found, T_LL_reference1* reference, UBYTE state); #else EXTERN void itx_i_queue_get_ready (BOOL* found, T_reference1* reference, UBYTE state); #endif #ifdef LL_2to1 EXTERN void itx_send_ll_data_cnf (T_LL_reference1* reference); #else EXTERN void itx_send_ll_data_cnf (T_reference1* reference); #endif EXTERN void itx_handle_ll_ready_ind(BOOL data_send); EXTERN void itx_s_queue_store (T_COMMAND, T_ABIT_REQ_TYPE, T_FRAME_NUM nr, T_SACK_BITMAP*); EXTERN void itx_s_queue_clean (void); #endif /* !LLC_ITXF_H */