FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_app/kpd/kpd_power_api.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 kpd_power_api.h * * API Definition for keypad driver, used bi PWR SWE. * * * @author Laurent Sollier (l-sollier@ti.com) * @version 0.1 */ /* * History: * * Date Author Modification * ---------------------------------------- * 11/02/2001 L Sollier Create * * * (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved */ #ifndef _KPD_POWER_API_H_ #define _KPD_POWER_API_H_ #include "kpd/kpd_cfg.h" #include "kpd/kpd_api.h" #include "rv/rv_general.h" #include "rvf/rvf_api.h" /* This structure defines the two functions to call when PWR key is pressed */ typedef struct { void (*pressed)(T_KPD_VIRTUAL_KEY_ID); void (*released)(void); } T_KPD_KEYPAD; #ifdef __cplusplus extern "C" { #endif /** * @name API functions * * API functions declarations. */ /*@{*/ /** * function: kpd_power_key_pressed * * This function is called by the PWR SWE when the PWR key is pressed. * * @return * - RV_OK if operation is successfull, * - RV_MEMORY_ERR if message could not be sent to the keypad task. * - RV_INTERNAL_ERR if keypad driver is not yet initialized. * */ T_RV_RET kpd_power_key_pressed(void); #ifdef __cplusplus } #endif #endif /* #ifndef _KPD_POWER_API_H_ */