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view src/cs/drivers/drv_app/rtc/rtc_i.h @ 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:   rtc_i.h                                                    */
/*                                                                              */
/*      Purpose:   This file contains the structures, constants and prototypes  */
/*               dedicated to RTC.                                              */
/*                                                                              */
/*      Note:      None.                                                        */
/*                                                                              */
/*      Revision History:                                                       */
/*      03/20/01   Laurent Sollier      Create.                                 */
/*                                                                              */
/*   (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved  */
/*                                                                              */
/********************************************************************************/

#ifndef _RTC_I_H_
#define _RTC_I_H_

#include "rvm/rvm_gen.h"
#include "rvf/rvf_api.h"

/********************************************************************************/
/*                                                                              */
/*   Define a structure used to store all the informations related to RTC's task*/
/*   & MBs identifiers.                                                         */
/*                                                                              */
/********************************************************************************/

typedef struct
{
   T_RVF_MB_ID      prim_id;
   T_RVF_ADDR_ID   addr_id;
   void*            msg_alarm_event;      
} T_RTC_ENV_CTRL_BLK;

/*******************************************************************************
 *
 *                               RTC_Initialize
 * 
 * Purpose  : Initializes the RTC driver.
 *
 * Arguments: In : none
 *            Out: none
 *
 * Returns: RVF_OK if initialisation is ok
 *            RVF_INTERNAL_ERROR else
 *
 ******************************************************************************/

T_RVF_RET RTC_Initialize(void);


/*******************************************************************************
 *
 *                               RTC_ProcessAlarmEvent
 * 
 * Purpose  : Call MMI when SW RTC module receive alarm event
 *
 * Arguments: In : none
 *            Out: none
 *
 * Returns: none
 *
 *
 ******************************************************************************/

void RTC_ProcessAlarmEvent(void);

/*******************************************************************************
 *
 *                               RTC_ItTimerHandle
 * 
 * Purpose  : Compute an average value for compensation register
 *
 * Arguments: In : none
 *            Out: none
 *
 * Returns: none
 *
 *
 ******************************************************************************/

void RTC_ItTimerHandle(void);


/*******************************************************************************
 *
 *                               RTC_ItAlarmHandle
 * 
 * Purpose  : Activate HISR which will send a message in the RTC mailbox to
 *            inform that time alarm is reached
 *
 * Arguments: In : none
 *            Out: none
 *
 * Returns: none
 *
 *
 ******************************************************************************/

void RTC_ItAlarmHandle(void);


/*******************************************************************************
 *
 *                               RTC_GaugingHandler
 * 
 * Purpose  : This function is called when a gauging is finished (started by 
 *            layer1). It save clock counter for average value computation
 *            ( done by RTC_ItTimerHandle)
 *
 * Arguments: In : none
 *            Out: none
 *
 * Returns: none
 *
 *
 ******************************************************************************/

void RTC_GaugingHandler(void);


#endif /* #ifndef _RTC_I_H_ */