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view src/cs/services/dar/dar_handle_message.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 Name:  dar_handle_message.c                                        */
/*                                                                          */
/*  Purpose:   This function is called when the DAR entity receives a new   */
/*             message in its mailbox.                                      */
/*                                                                          */
/*                                                                          */
/*  Version   0.1                                                           */
/*                                                                          */
/*  Date                 Modification                                       */
/*  ------------------------------------                                    */
/*  17 October 2001    Create                                               */
/*                                                                          */
/*  Author     Stephanie Gerthoux                                           */
/*                                                                          */
/* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved*/
/****************************************************************************/

#include "rv/rv_defined_swe.h"
#ifdef RVM_DAR_SWE

   #include "rv/rv_general.h"
   #include "rvm/rvm_gen.h"
   #include "rvm/rvm_priorities.h"
   #include "dar/dar_api.h"
   #include "dar/dar_env.h"
   #include "dar/dar_macro_i.h"
   #include "dar/dar_messages_i.h"
   #include "dar/dar_msg_ft.h"

   /********************************************************************************/
   /* Function         dar_handle_message                                          */
   /*                                                                              */
   /* Description      This function is called every time the DAR entity received  */
   /*                  a new message in its mailbox                                */
   /*                                                                              */
   /********************************************************************************/

   T_RV_RET dar_handle_msg(T_RV_HDR	*msg_p)
   {
      /* Declare local variables */
      T_RV_RET status = RVF_GREEN;

      if (msg_p != NULL)
      {
         switch (msg_p->msg_id)
         {
            case DAR_FILTER_REQ:
            {
               //DAR_SEND_TRACE_PARAM("DAR Diagnose with the msg", msg_p->msg_id, RV_TRACE_LEVEL_DEBUG_LOW);
               /* process the dar filter */
               dar_filter_request((T_DAR_FILTER_START *)msg_p);
               break;
            }

            case DAR_WRITE_REQ:
            {
               //DAR_SEND_TRACE_PARAM("DAR Diagnose with the msg", msg_p->msg_id, RV_TRACE_LEVEL_DEBUG_LOW);
               /* process the dar to write */
               dar_write_data_in_buffer((T_DAR_WRITE_START *)msg_p);
               break;
            }
      
            default: 
            {
               /* Unknow message has been received */
               DAR_TRACE_WARNING("A DAR unknow message has been received ");
               break; 
            };
         } /* switch (msg_p->msg_id) */
  
         /* Free message buffer */
         status = rvf_free_buf((T_RVF_BUFFER *)msg_p);
         if (status != RVF_GREEN)
         {
            DAR_SEND_TRACE(" DAR ERROR (env). A wrong message is deallocated ",
                            RV_TRACE_LEVEL_ERROR);
         }
      } /* if (msg_p != NULL) */
  
      return RV_OK;
   }

#endif /* #ifdef RVM_DAR_SWE */