FreeCalypso > hg > fc-magnetite

view src/cs/drivers/drv_app/r2d/r2d_task.c @ 629:3231dd9b38c1

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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 094152d97ce7
line wrap: on
line source

/**
                                                                          
	@file:	r2d_task.c
	
	@author Christophe Favergeon                              
                                                                          
    @version 0.5	

    Purpose: Refresh task for R2D. It is calling the LCD dependent refresh subroutine
	
*/

/*
																			
 	Date       	Modification												
  ------------------------------------									
    06/02/2001	Create		
	10/18/2001  Version 0.5 for first integration with Riviera database
																											    
																			
 (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved
*/




#include "rv/general.h"
#include "rvf/rvf_api.h"
#include "rvm/rvm_api.h"
#include "rvm/rvm_use_id_list.h"
#include "r2d/r2d_messages.h"
#include "r2d/r2d_env.h"
#include "r2d/r2d_config.h"
#include "r2d/r2d.h"
#include "r2d/r2d_i.h"

extern void r2d_refresh(void);

extern INT16 r2d_g_refresh_disabled;

/*******************************************************************************
** Function         r2d_core
**
** Description      Core of the r2d task, which refresh the LCD
**					
*******************************************************************************/
T_RVM_RETURN r2d_core(void)
{	
	BOOLEAN error_occured = FALSE;
//	T_R2D_EVT * msg_ptr_rx, * msg_ptr_tx;
	
	//r2d_start();


	rvf_send_trace("R2D REFRESH TASK STARTED",24, NULL_PARAM, 
			   RV_TRACE_LEVEL_DEBUG_HIGH, R2D_USE_ID );
	

	/* loop to process messages */
	while (error_occured == FALSE)
	{
		UINT16 received_event;
		//rvf_send_trace("WAIT EVENT",strlen("WAIT EVENT"), NULL_PARAM, 
		//	   RV_TRACE_LEVEL_DEBUG_HIGH, TRACE_XXX );
		/* Wait for the necessary events (infinite wait for a msg in the mailbox 0). */
		 received_event = rvf_wait ( EVENT_MASK(RVF_APPL_EVT_0), 0);

		 //rvf_send_trace("EVENT RECEIVED",strlen("EVENT RECEIVED"), NULL_PARAM, 
		//	   RV_TRACE_LEVEL_DEBUG_HIGH, TRACE_XXX );
					
		/* If an event related to mailbox 0 is received, then */
		if (received_event & EVENT_MASK(RVF_APPL_EVT_0) ) 
		{
			//rvf_send_trace("GOOD EVENT",strlen("GOOD EVENT"), NULL_PARAM, 
			//   RV_TRACE_LEVEL_DEBUG_HIGH, TRACE_XXX );

			r2d_g_event_was_sent=FALSE;
			if (r2d_g_refresh_disabled==0)
			  r2d_refresh();
			rvf_delay(RVF_MS_TO_TICKS(R2D_REFRESH_PERIOD));
		}

	}
	
	return RVM_OK;	
}