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view src/cs/services/lls/lls_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 04aaa5622fa7
children
line wrap: on
line source

/**
 * @file   lls_api.c
 *
 * Implementation of Functions.
 *
 * @author   Laurent Sollier (l-sollier@ti.com)
 * @version 0.1
 */

/*
 * History:
 *
 *   Date          Author       Modification
 *  ----------------------------------------
 *  03/12/2002     L Sollier    Create
 *
 *
 * (C) Copyright 2002 by Texas Instruments Incorporated, All Rights Reserved
 */

#ifndef _WINDOWS
   #include "l1sw.cfg"
   #include "chipset.cfg"
#endif

#include "lls/lls_api.h"
#include "lls/lls_env.h"
#include "lls/lls_i.h"


/** External declaration */
extern T_LLS_ENV_CTRL_BLK* lls_env_ctrl_blk;

/* FreeCalypso addition for L1 sleep manager */
unsigned char iota_ledb_status;


/**
 * @name Functions implementation
 *
 */
/*@{*/


/**
 * function: lls_switch_on
 */
T_RV_RET lls_switch_on(T_LLS_EQUIPMENT equipment_sort)
{
#if (ANLG_FAM == 2)
   T_RV_RET ret = RV_OK;
   UINT8 equipment_index;

   /* Check if initialization has been correctly done */
   if ( (lls_env_ctrl_blk == 0) || (lls_env_ctrl_blk->swe_is_initialized == FALSE) )
   {
      LLS_SEND_TRACE("LLS: Initialization is not yet done or failed", RV_TRACE_LEVEL_ERROR);
      return RV_INTERNAL_ERR;
   }

   LLS_SEND_TRACE_PARAM("LLS: Switch ON request for equipment", equipment_sort, RV_TRACE_LEVEL_DEBUG_HIGH);

   /* Retrieve index of the equipment in the table */
   ret = lls_search_index(equipment_sort, &equipment_index);

   if (ret != RV_OK)
   {
      LLS_SEND_TRACE("LLS: Equipment is unknown", RV_TRACE_LEVEL_ERROR);
      return ret;
   }

   /* FreeCalypso addition */
   if (equipment_sort == LLS_BACKLIGHT)
      iota_ledb_status = 1;

   ret = lls_manage_equipment(equipment_index, SWITCH_ON);

   return ret;

#else
   return RV_NOT_SUPPORTED;
#endif
}

/**
 * function: lls_switch_off
 *
 */
T_RV_RET lls_switch_off(T_LLS_EQUIPMENT equipment_sort)
{
#if (ANLG_FAM == 2)
   T_RV_RET ret = RV_OK;
   UINT8 equipment_index;

   /* Check if initialization has been correctly done */
   if ( (lls_env_ctrl_blk == 0) || (lls_env_ctrl_blk->swe_is_initialized == FALSE) )
   {
      LLS_SEND_TRACE("LLS: Initialization is not yet done or failed", RV_TRACE_LEVEL_ERROR);
      return RV_INTERNAL_ERR;
   }

   LLS_SEND_TRACE_PARAM("LLS: Switch OFF request for equipment", equipment_sort, RV_TRACE_LEVEL_DEBUG_HIGH);

   /* Retrieve index of the equipment in the table */
   ret = lls_search_index(equipment_sort, &equipment_index);

   if (ret != RV_OK)
   {
      LLS_SEND_TRACE("LLS: Equipment is unknown", RV_TRACE_LEVEL_ERROR);
      return ret;
   }

   ret = lls_manage_equipment(equipment_index, SWITCH_OFF);

   /* FreeCalypso addition */
   if (equipment_sort == LLS_BACKLIGHT)
      iota_ledb_status = 0;

   return ret;

#else
   return RV_NOT_SUPPORTED;
#endif
}


/*@}*/