FreeCalypso > hg > fc-tourmaline
view src/g23m-aci/uart/uart_kerf.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 (2021-06-13) |
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 uart_kerf.c +----------------------------------------------------------------------------- */ #ifndef UART_KERF_H #define UART_KERF_H EXTERN void ker_setupUart (void); EXTERN void ker_init (void); EXTERN void ker_analyze_frame_info_command (ULONG* forward, T_desc2* frame); EXTERN void ker_analyze_frame_info_response (ULONG* forward, T_desc2* frame); EXTERN void ker_mux_dlc_release (UBYTE dlc_instance); EXTERN void ker_mux_close_down (void); EXTERN void ker_mux_send_frame (T_desc2* frame); EXTERN void ker_mux_send_command_frame (UBYTE dlc_instance, T_desc2* frame); EXTERN void ker_mux_send_line_states(UBYTE dlc_instance); EXTERN void ker_mux_send_close_down(void); EXTERN void ker_send_disc_frame (UBYTE dlci); EXTERN void ker_receive_sabm_frame(ULONG* forward, T_desc2* frame); EXTERN void ker_receive_ua_frame(ULONG* forward, T_desc2* frame); EXTERN void ker_receive_dm_frame(ULONG* forward, T_desc2* frame); EXTERN void ker_receive_disc_frame(ULONG* forward, T_desc2* frame); EXTERN void ker_receive_uih_control_frame(ULONG* forward, T_desc2* frame); EXTERN void ker_receive_uih_data_frame(ULONG* forward, T_desc2* frame); #endif /* !UART_KERF_H */