FreeCalypso > hg > fc-tourmaline
view src/cs/services/tty/tty_env.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 | 4e78acac3d88 |
| children |
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/** * @file tty_env.h * * Declarations of the Riviera Generic Functions * * @author Frederic Turgis (f-turgis@ti.com) & Gerard Cauvy (g-cauvy@ti.com) * @version 0.1 */ /* * History: * * Date Modification * ------------------------------------ * 01/27/2003 Create * * (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved */ #ifndef __TTY_ENV_H_ #define __TTY_ENV_H_ #include "rvm/rvm_gen.h" /* Generic RVM types and functions. */ //#include "rvf/rvf_pool_size.h" /* Stack & Memory Bank sizes definitions */ #include "tty/tty_pool_size.h" /* Stack & Memory Bank sizes definitions */ /** * @name Mem bank * * Memory bank size and watermark. */ /*@{*/ #define TTY_MB_PRIM_SIZE TTY_MB1_SIZE #define TTY_MB_PRIM_WATERMARK (TTY_MB_PRIM_SIZE - 256) /*@}*/ /** * @name Generic functions * * Generic functions declarations needed for a type 2 SWE * (Group Member SWE). */ /*@{*/ T_RVM_RETURN tty_get_info (T_RVM_INFO_SWE *info_swe); T_RVM_RETURN tty_set_info ( T_RVF_G_ADDR_ID addr_id, T_RV_RETURN_PATH return_path[], T_RVF_MB_ID bk_id_table[], T_RVM_CB_FUNC call_back_error_ft); T_RVM_RETURN tty_init (void); T_RVM_RETURN tty_stop (void); T_RVM_RETURN tty_kill (void); /*@}*/ #endif /*__TTY_ENV_H_*/