FreeCalypso > hg > fc-tourmaline
view src/g23m-fad/ppp/ppp_lcps.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 ppp_lcps.c +----------------------------------------------------------------------------- */ #ifndef PPP_LCPS_H #define PPP_LCPS_H EXTERN void sig_arb_lcp_parameters_req (USHORT mru, UBYTE ap, ULONG accm); EXTERN void sig_arb_lcp_modify_ap_req (UBYTE ap); EXTERN void sig_arb_lcp_packet_req (T_desc2* packet); EXTERN void sig_arb_lcp_open_req (void); EXTERN void sig_arb_lcp_close_req (void); EXTERN void sig_arb_lcp_down_req (void); EXTERN void sig_arb_lcp_to_req (void); EXTERN void sig_ona_lcp_tld_req(void); EXTERN void sig_ona_lcp_tlf_req(void); EXTERN void sig_ona_lcp_str_req(T_desc2** ptr_packet); EXTERN void sig_ona_lcp_scr_req(T_desc2** ptr_packet); EXTERN void sig_ona_lcp_tlu_req(void); #endif /* !PPP_LCPS_H */