FreeCalypso > hg > fc-tourmaline
view src/g23m-fad/ppp/ppp_ncpf.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 ppp_ncpf.c +----------------------------------------------------------------------------- */ #ifndef PPP_NCPF_H #define PPP_NCPF_H EXTERN void ncp_init (void); EXTERN void ncp_get_values (UBYTE* ptr_hc, UBYTE* ptr_msid, ULONG* ptr_ip, ULONG* ptr_pdns, ULONG* ptr_sdns); EXTERN void ncp_get_scr (T_desc2** ptr_packet); EXTERN void ncp_get_str (T_desc2** ptr_packet); EXTERN void ncp_analyze_first_ipcp(T_desc2* packet, UBYTE* ptr_result, UBYTE* ptr_hc, UBYTE* ptr_msid); EXTERN void ncp_fill_out_packet (UBYTE pco_buf[], USHORT* ptr_pos); EXTERN void ncp_analyze_pco (UBYTE pco_buf[], USHORT pos, ULONG* ptr_dns1, ULONG* ptr_dns2, ULONG* ptr_gateway); EXTERN void ncp_rcr (T_desc2** ptr_packet, UBYTE* isnew, UBYTE* forward); EXTERN void ncp_rca (T_desc2* packet, UBYTE* forward); EXTERN void ncp_rcn (T_desc2** ptr_packet, UBYTE* forward); EXTERN void ncp_rcj (T_desc2** ptr_packet, UBYTE* forward); EXTERN void ncp_rtr (T_desc2** ptr_packet, UBYTE* forward); EXTERN void ncp_rta (T_desc2* packet, UBYTE* forward); EXTERN void ncp_rxj (T_desc2** ptr_packet, UBYTE* forward); EXTERN void ncp_ruc (T_desc2** ptr_packet, UBYTE* forward); #endif /* !PPP_NCPF_H */