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view src/cs/drivers/drv_app/pwr/pwr_process.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
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/*****************************************************************************/
/*                                                                           */
/*  Name       pwr_process.c                                                 */
/*                                                                           */
/*  Function   this file contains the pwr_process function, used to          */
/*			   handle messages received in the SPI task mailbox.             */
/*                                                                           */
/*  Version    0.1                                                           */
/*                                                                           */
/*  Date       Modification                                                  */
/*  ------------------------------------                                     */
/*                                                                           */
/* Author      Candice Bazanegue                                             */
/*                                                                           */
/* (C) Copyright 2000 by Texas Instruments Incorporated, All Rights Reserved */
/*****************************************************************************/

#include "rv/rv_defined_swe.h"	   // for RVM_PWR_SWE

#ifdef RVM_PWR_SWE

#include "abb/abb.h"
#include "rvm/rvm_use_id_list.h"
#include "rvf/rvf_api.h"
#include "pwr/pwr_messages_i.h"
#include "spi/spi_env.h"


/*******************************************************************************
** Function         pwr_process
**
** Description     It is called by the spi task core.                                        
**                 Messages can be related to ABB interrupt handling, or        
**                 battery charge management. 
**
*******************************************************************************/
void pwr_process(T_RV_HDR * msg_ptr)
{
   void *ptr = NULL;

   if (msg_ptr != NULL)
   {
      switch (msg_ptr->msg_id)
      {
         case PWR_SPI_INFO_BATTERY_EVT:
		 {
            /* Battery voltage and charger current */
            if (SPI_GBL_INFO_PTR->is_adc_on == FALSE)
            {
               /* start the channels conversion */
               ABB_Write_Register_on_page(PAGE0, VBATREG, 0x0000);
            }

            /* Callback function */
            if(((T_RV_HDR *)msg_ptr)->callback_func != NULL)
            {
               ((T_RV_HDR *)msg_ptr)->callback_func(ptr);
            }

            rvf_free_buf ((void *) msg_ptr);

            break;
		 }

         default:
	     {
            /* Unknow message has been received */
            rvf_send_trace("PWR_task : Received an unknown message",38, NULL_PARAM ,
                           RV_TRACE_LEVEL_DEBUG_HIGH, PWR_USE_ID);

            rvf_free_buf ((void *) msg_ptr);

            break;
         } 
      }   // end of switch
   }   // end of if
   return;
}

#endif /* #ifdef RVM_PWR_SWE */