view src/cs/drivers/drv_app/rtc/rtc_env.c @ 629:3231dd9b38c1

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
line wrap: on
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/********************************************************************************/
/*                                                                              */
/*      File Name:   rtc_env.c                                                  */
/*                                                                              */
/*      Purpose:   This file contains routines that will be called in order     */
/*               to:                                                            */
/*               - notify the Riviera manager of the RTC's Memory               */
/*                 Banks requirements,                                          */
/*               - initialize all the RTC's data structures,                    */
/*                                                                              */
/*      Note:      None.                                                        */
/*                                                                              */
/*      Revision History:                                                       */
/*      03/22/01   Laurent Sollier      Create.                                 */
/*                                                                              */
/*   (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved  */
/*                                                                              */
/********************************************************************************/

#include "rvm/rvm_priorities.h"
#include "rvm/rvm_use_id_list.h"
#include "rtc/rtc_env.h"
#include "rtc/rtc_i.h"
#include "rtc/rtc_api.h"
#include <string.h>


/* Define a pointer to the RTC environment control block */
T_RTC_ENV_CTRL_BLK *rtc_env_ctrl_blk = NULL;

/* External declaration */
extern T_RV_RET rtc_core(void);

/* Define global pointer to the error function */

static T_RVM_RETURN (*rtc_error_ft) (T_RVM_NAME       swe_name,
                                     T_RVM_RETURN     error_cause,
                                     T_RVM_ERROR_TYPE error_type,
                                     T_RVM_STRING     error_msg);


/******************************************************************************
* Function     : rtc_get_info
*
* Description : This function is called by the RV manager to learn 
*            rtc requirements in terms of memory, SWEs...
*
* Parameters  : T_RVM_INFO_SWE  * swe_info: pointer to the structure to fill
*            containing infos related to the rtc SWE.
*
* Return      :  T_RVM_RETURN
* 
* History     : 0.1 (22-March-2001)
*                           
*
******************************************************************************/
T_RVM_RETURN rtc_get_info(T_RVM_INFO_SWE* swe_info)
{
   /* SWE info */
   swe_info->swe_type = RVM_SWE_TYPE_4;
    swe_info->type_info.type4.swe_use_id = RTC_USE_ID;
   memcpy( swe_info->type_info.type4.swe_name, "RTC", sizeof("RTC") );

   swe_info->type_info.type4.stack_size = RTC_STACK_SIZE;
   swe_info->type_info.type4.priority   = RVM_RTC_TASK_PRIORITY;

   /* Set the return path */
   swe_info->type_info.type4.return_path.callback_func   = NULL;
   swe_info->type_info.type4.return_path.addr_id         = 0;

   
   /* memory bank info */
   swe_info->type_info.type4.nb_mem_bank = 1;
   
   memcpy ((UINT8 *)    swe_info->type_info.type4.mem_bank[0].bank_name, "RTC_PRIM", 9);
   swe_info->type_info.type4.mem_bank[0].initial_params.size          = RTC_MB_PRIM_SIZE;
   swe_info->type_info.type4.mem_bank[0].initial_params.watermark     = RTC_MB_PRIM_WATERMARK;

   /* linked SWE info */
   /* this SWE does not require any SWE to run */
   swe_info->type_info.type4.nb_linked_swe = 0;
   
   /* generic functions */
   swe_info->type_info.type4.set_info = rtc_set_info;
   swe_info->type_info.type4.init     = rtc_init;
   swe_info->type_info.type4.core     = rtc_core;
   swe_info->type_info.type4.stop     = rtc_stop;
   swe_info->type_info.type4.kill     = rtc_kill;

   return RV_OK;
}


/******************************************************************************
* Function     : rtc_set_info
*
* Description : This function is called by the RV manager to inform  
*            the rtc SWE about task_id, mb_id and error function.
*
* Parameters  : - T_RVF_ADDR_ID  addrId: Address id.
*               - T_RVF_MB_ID mbId[]: array of memory bank ids.
*            - callback function to call in case of unrecoverable error.
*
* Return      : T_RVM_RETURN
* 
* History     : 0.1 (22-March-2001)
*                           
*
******************************************************************************/
T_RVM_RETURN rtc_set_info(T_RVF_ADDR_ID   addrId,
                          T_RV_RETURN      return_path[],
                          T_RVF_MB_ID      mbId[],
                          T_RVM_RETURN   (*callBackFct) (T_RVM_NAME SWEntName,
                                                         T_RVM_RETURN errorCause,
                                                         T_RVM_ERROR_TYPE errorType,
                                                         T_RVM_STRING errorMsg) )
{
   T_RVF_MB_STATUS mb_status;


   rvf_send_trace("RTC : rtc_set_info: try to init GLOBAL INFO RTC structure ... ",62,
                  NULL_PARAM,
                  RV_TRACE_LEVEL_DEBUG_HIGH,
                  RTC_USE_ID);

   mb_status = rvf_get_buf(mbId[0],sizeof(T_RTC_ENV_CTRL_BLK),(void **) &rtc_env_ctrl_blk);
   
   if (mb_status == RVF_RED) 
   {
      rvf_send_trace("RTC : rtc_set_info: Not enough memory to initiate GLOBAL INFO RTC structure ... ",86,
                     NULL_PARAM,
                     RV_TRACE_LEVEL_ERROR,
                     RTC_USE_ID);

      return (RVM_MEMORY_ERR);
   }


   /* store the pointer to the error function */
   rtc_error_ft = callBackFct ;

   rtc_env_ctrl_blk->prim_id = mbId[0];
   rtc_env_ctrl_blk->addr_id = addrId;


   return RV_OK;
}


/******************************************************************************
* Function     : rtc_init
*
* Description : This function is called by the RV manager to initialize the 
*            rtc SWE before creating the task and calling rtc_start. 
*
* Parameters  : None
*
* Return      : T_RVM_RETURN
* 
* History     : 0.1 (22-March-2001)
*                           
*
******************************************************************************/
T_RVM_RETURN rtc_init(void)
{
   return RTC_Initialize();
}


/******************************************************************************
* Function     : rtc_stop
*
* Description : This function is called by the RV manager to stop the rtc SWE.
*
* Parameters  : None
*
* Return      : T_RVM_RETURN
* 
* History     : 0.1 (22-March-2001)
*                           
*
******************************************************************************/
T_RVM_RETURN rtc_stop(void)
{
   /* other SWEs have not been killed yet, rtc can send messages to other SWEs */

   return RV_OK;
}


/******************************************************************************
* Function     : rtc_kill
*
* Description : This function is called by the RV manager to kill the rtc 
*            SWE, after the rtc_stop function has been called.
*
* Parameters  : None
*
* Return      : T_RVM_RETURN
* 
* History     : 0.1 (22-March-2001)
*                           
*
******************************************************************************/
T_RVM_RETURN rtc_kill (void)
{
   /* free all memory buffer previously allocated */
   rvf_free_buf ((void *) rtc_env_ctrl_blk->msg_alarm_event);
   rvf_free_buf ((void *) rtc_env_ctrl_blk);

   return RV_OK;
}