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view src/cs/services/lls/lls_api.c @ 629:3231dd9b38c1

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armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively, and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code for C-Sample and earlier turns them into GPIOs configured as outputs also driving 1 - so far, so good - but TI's code for BOARD 41 (which covers D-Sample, Leonardo and all real world Calypso devices derived from the latter) switches them from MCUEN to GPIOs, but then leaves them as inputs. Given that the hardware powerup state of these two pins is outputs driving 1, every Calypso board design MUST be compatible with such driving; typically these GPIO signals will be either unused and unconnected or connected as outputs driving some peripheral. Turning these pins into GPIO inputs will result in floating inputs on every reasonably-wired board, thus I am convinced that this configuration is nothing but a bug on the part of whoever wrote this code at TI. This floating input bug had already been fixed earlier for GTA modem and FCDEV3B targets; the present change makes the fix unconditional for all "classic" targets. The newly affected targets are D-Sample, Leonardo, Tango and GTM900.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 02 Jan 2020 05:38:26 +0000
parents 945cf7f506b2
children
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/**
 * @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;


/**
 * @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 unknow", RV_TRACE_LEVEL_ERROR);
      return ret;
   }

   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 unknow", RV_TRACE_LEVEL_ERROR);
      return ret;
   }

   ret = lls_manage_equipment(equipment_index, SWITCH_OFF);
   
   return ret;

#else
   return RV_NOT_SUPPORTED;
#endif
}


/*@}*/