view src/cs/services/lls/lls_env.c @ 72:7bf39f5e834d

backlight control on Luna: switch PWL instead of LEDB This change is preliminary toward upcoming rework of backlight control logic in our UI firmware. LEDB does not exist on Tango-based platforms (it is not brought out on Tango modules), thus turning it on and off produces absolutely no effect beyond making L1 disable deep sleep when LEDB is turned on. However, both iWOW DSK and our upcoming FC Caramel2 boards have a PWL LED, so let's switch that LED on and off to indicate the state of the UI firmware's backlight control. Note that we are NOT switching the actual Luna LCD backlight here, even though it is trivially controlled with a GPIO. The reason for this seemingly strange choice is that we don't want to turn this development board LCD backlight off until we bring the higher-level backlight control logic up to par, including new logic to "swallow" the first keypress that turns on the darkened LCD.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 24 Oct 2020 07:39:54 +0000
parents 4e78acac3d88
children
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/**
 * @file   lls_env.c
 *
 * Coding of the Riviera Generic 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
 */

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

#include "rvm/rvm_use_id_list.h"

#include <string.h>


/**
 * Pointer on the structure gathering all the global variables
 * used by LLS instance.
 */
T_LLS_ENV_CTRL_BLK* lls_env_ctrl_blk = NULL;


/**
 * @name Riviera generic functions implementation
 *
 */
/*@{*/

/**
 * function: lls_get_info
 */
T_RVM_RETURN lls_get_info(T_RVM_INFO_SWE* swe_info)
{
   /* SWE info */
   swe_info->swe_type = RVM_SWE_TYPE_1;
   swe_info->type_info.type1.swe_use_id = LLS_USE_ID;

   memcpy( swe_info->type_info.type1.swe_name, "LLS", sizeof("LLS") );

   /* Set the return path */
   swe_info->type_info.type1.return_path.callback_func   = NULL;
   swe_info->type_info.type1.return_path.addr_id         = 0;


   /* memory bank info */
   swe_info->type_info.type1.nb_mem_bank = 1;

   memcpy ((UINT8 *)    swe_info->type_info.type1.mem_bank[0].bank_name, "LLS_PRIM", 9);
   swe_info->type_info.type1.mem_bank[0].initial_params.size          = LLS_MB_PRIM_SIZE;
   swe_info->type_info.type1.mem_bank[0].initial_params.watermark     = LLS_MB_PRIM_WATERMARK;

   /* linked SWE info */
   /* this SWE does not require any SWE to run */
   swe_info->type_info.type1.nb_linked_swe = 1;
   swe_info->type_info.type1.linked_swe_id[0] = SPI_USE_ID;

   /* generic functions */
   swe_info->type_info.type1.set_info = lls_set_info;
   swe_info->type_info.type1.init     = lls_init;
   swe_info->type_info.type1.start    = lls_start;
   swe_info->type_info.type1.stop     = lls_stop;
   swe_info->type_info.type1.kill     = lls_kill;

   return RVM_OK;
}


/**
 * function: lls_set_info
 */
T_RVM_RETURN lls_set_info (T_RVF_ADDR_ID   addr_id, 
                           T_RV_RETURN     return_path[], 
                           T_RVF_MB_ID     bk_id[],
                           T_RVM_RETURN   (*rvm_error_ft)(T_RVM_NAME       swe_name,
                                                          T_RVM_RETURN     error_cause,
                                                          T_RVM_ERROR_TYPE error_type,
                                                          T_RVM_STRING     error_msg))
{
   /* Create instance gathering all the variable used by LLS instance */
   if (rvf_get_buf(bk_id[0], 
                  sizeof(T_LLS_ENV_CTRL_BLK),
                  (T_RVF_BUFFER**)&lls_env_ctrl_blk) != RVF_GREEN)
   {
      /* The environemnt will cancel the LLS instance creation. */
      return RVM_MEMORY_ERR;
   }

   /* Store the pointer to the error function */
   lls_env_ctrl_blk->error_ft = rvm_error_ft ;
   /* Store the mem bank id. */
   lls_env_ctrl_blk->prim_id = bk_id[0];
   lls_env_ctrl_blk->swe_is_initialized = FALSE;

   /* return_path of linked SWE -> not used */
   return RVM_OK;
}


/**
 * function: lls_init
 */
T_RVM_RETURN lls_init(void)
{
   if (lls_env_ctrl_blk != 0)
      lls_env_ctrl_blk->swe_is_initialized = TRUE;
   else
      return RV_INTERNAL_ERR;

   if (lls_initialize() != RV_OK)
      return RV_INTERNAL_ERR;

   return RV_OK;
}


/**
 * function: lls_start
 */
T_RVM_RETURN lls_start(void)
{
   return RV_OK;
}


/**
 * function: lls_stop
 */
T_RVM_RETURN lls_stop(void)
{

   return RVM_OK;
}


/**
 * function: lls_kill
 */
T_RVM_RETURN lls_kill (void)
{
   /*
    * DO NOT SEND MESSAGES
    */
   rvf_free_buf(lls_env_ctrl_blk);

   lls_kill_service();

   return RVM_OK;
}


/*@}*/