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view src/cs/drivers/drv_app/lcc/lcc_api.c @ 268:f2e52cab0a73

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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
line wrap: on
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/******************************************************************************
 * Power Task (pwr)
 * Design and coding by Svend Kristian Lindholm, skl@ti.com
 *
 * PWR MMI Interface
 *
 * $Id: pwr_api.c 1.1 Wed, 20 Aug 2003 10:22:37 +0200 skl $
 *
 ******************************************************************************/

#include "lcc/lcc.h"
#include "lcc/lcc_env.h"
#include "lcc/lcc_trace.h"
#include "rv/rv_defined_swe.h"

/******************************************************************************
 * Function prototypes
 ******************************************************************************/

T_RVM_RETURN pwr_start_timer(UINT32 *timer_begin);

// Inform the PWR process which callback function to send MMI events
// and perform initialization of mmi related variables
void pwr_register (T_RV_RETURN_PATH *return_path, void *ptr) {
    ttw(ttr(TTrInit,"pwr_register  (%d)" NL, 0x00));

    // Assign return path (callback or task address id)
    pwr_ctrl->rpath.callback_func = return_path->callback_func;
    pwr_ctrl->rpath.addr_id       = return_path->addr_id;

    // Pointer to mmi event memory allocated (& deallocated) by the MMI
    pwr_ctrl->mmi_ptr = (struct mmi_info_ind_s *) ptr;

    // Yes - the mmi has registered!
    pwr_ctrl->flag_mmi_registered = 1;

    // Start the mmi repetition timer
    pwr_start_timer(&pwr_ctrl->time_begin_mmi_rep);
    ttw(ttr(TTrTimerLow,"mmi repetition timer started(%d)" NL, 0));

    ttw(ttr(TTrInit,"pwr_register  (%d)" NL, 0xFF));
}