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view src/g23m-aci/aci/aci_csf.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 53929b40109c
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GSM-F&D (8411)
|  Modul   :  ACI_CSF
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  This Modul defines the custom specific functions for the
|             AT Command Interpreter
+----------------------------------------------------------------------------- 
*/ 

#ifndef ACI_CSF_C
#define ACI_CSF_C

#include "aci_all.h"

#include "aci_cmh.h"

#ifdef FF_ATI
#include "ati_cmd.h"
#endif

#include "aci_cmd.h"
#include "aci.h"

/*==== CONSTANTS ==================================================*/

/*==== TYPES ======================================================*/

/*==== EXPORT =====================================================*/

/*==== VARIABLES ==================================================*/

/*==== FUNCTIONS ==================================================*/
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)              MODULE  : ACI_CSF            |
| STATE   : code                        ROUTINE : aci_init_timer     |
+--------------------------------------------------------------------+

  PURPOSE : Initialize the ACI timer.

*/

GLOBAL void aci_init_timer (void)
{
  TRACE_FUNCTION ("aci_init_timer()");

#if !defined (NEW_FRAME)

#ifdef FF_ATI
  t_ring_handle = vsi_t_open (VSI_CALLER TRING );
#endif
  t_ect_handle  = vsi_t_open (VSI_CALLER TMPTY );
  t_mpty_handle = vsi_t_open (VSI_CALLER TMPTY );
  t_dtmf_handle = vsi_t_open (VSI_CALLER TDTMF );

#ifdef FAX_AND_DATA
  t_fit_handle  = vsi_t_open (VSI_CALLER TFIT );
#endif

#endif
  /* AoC timers are created if AoC is really supported */
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)              MODULE  : ACI_CSF            |
| STATE   : code                        ROUTINE : aci_exit_timer     |
+--------------------------------------------------------------------+

  PURPOSE : Closes all timer.

*/

GLOBAL void aci_exit_timer (void)
{
  TRACE_FUNCTION ("aci_exit_timer()");

#if !defined (NEW_FRAME)

#ifdef FF_ATI
  vsi_t_close (VSI_CALLER t_ring_handle);
  t_ring_handle = VSI_ERROR;
#endif

#ifdef FAX_AND_DATA
  vsi_t_close (VSI_CALLER t_fit_handle);
  t_fit_handle = VSI_ERROR;
#endif

#endif
}

#endif