FreeCalypso > hg > fc-tourmaline
view src/g23m-gprs/llc/llc_irxf.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 : | 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_irxf.c +----------------------------------------------------------------------------- */ #ifndef LLC_IRXF_H #define LLC_IRXF_H EXTERN void irx_init (void); EXTERN void irx_init_sapi (void); EXTERN void irx_init_abm (void); EXTERN void irx_queue_store (T_LL_UNITDATA_IND *ll_unitdata_ind, T_FRAME_NUM ns, BOOL *is_busy); EXTERN void irx_queue_retrieve (T_LL_UNITDATA_IND **ll_unitdata_ind, BOOL* found); EXTERN void irx_queue_clean (void); EXTERN void irx_get_last_queued_ns (BOOL *found, T_FRAME_NUM *num); EXTERN void irx_update_vr (void); EXTERN void irx_ack_all_to (T_FRAME_NUM n); EXTERN void irx_handle_sack (T_FRAME_NUM nr, T_LL_UNITDATA_IND*, T_PDU_TYPE); EXTERN void irx_send_ack (T_BIT a_bit); EXTERN void irx_send_rnr (void); EXTERN void irx_build_sack_bitmap (T_SACK_BITMAP *bitmap); #endif /* !LLC_IRXF_H */