view src/cs/drivers/drv_app/spi/spi_task.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
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/*****************************************************************************/
/*                                                                           */
/*  Name        spi_task.c													 */
/*                                                                           */
/*  Function    this file contains the main SPI function: spi_core.			 */
/*				It contains the body of the SPI task.						 */
/*				It will initialize the SPI and then wait for messages		 */
/*				or functions calls.											 */
/*                                                                           */
/*  Version		0.1															 */
/*	Author		Candice Bazanegue                   						 */
/*																			 */
/* 	Date       	Modification												 */
/*  ------------------------------------									 */
/*  20/08/2000	Create														 */
/*  01/09/2003	Modfication         										 */
/*	Author		Pascal Puel                         						 */
/*																			 */
/* (C) Copyright 2000 by Texas Instruments Incorporated, All Rights Reserved */
/*****************************************************************************/

#ifndef _WINDOWS
  #include "chipset.cfg"
  #if (CHIPSET == 12)
    #include "inth/sys_inth.h"
  #else
    #include "inth/iq.h"    // for IQ_Unmask()
  #endif
  #include "power/power.h"   // for Switch_ON()
#endif

#include "rv/rv_defined_swe.h"	   // for RVM_PWR_SWE
#include "rvm/rvm_use_id_list.h"
#include "spi/spi_env.h"
#include "spi/spi_process.h"
#include "spi/spi_task.h"

#ifdef RVM_PWR_SWE
  #include "pwr/pwr_liion_cha.h"
  #include "pwr/pwr_disch.h"
  #include "pwr/pwr_process.h"
  #include "pwr/pwr_env.h"
#endif



/*******************************************************************************
** Function         spi_core
**
** Description      Core of the spi task, which initiliazes the spi SWE and 
**					waits for messages.
**					
*******************************************************************************/
T_RV_RET spi_core(void)
{	
	BOOLEAN error_occured = FALSE;
	T_RV_HDR * msg_ptr;

	rvf_send_trace("SPI_task: Initialization", 24, NULL_PARAM, RV_TRACE_LEVEL_DEBUG_LOW, SPI_USE_ID);
    SPI_GBL_INFO_PTR->SpiTaskReady = TRUE;

#ifndef _WINDOWS
    /* Unmask External Interrupt once the SPI task is started */
    #if (CHIPSET == 12)
      // Unmask ABB ext interrupt
      F_INTH_ENABLE_ONE_IT(C_INTH_ABB_IRQ_IT);
    #else
      // Unmask external (ABB) interrupt
      IQ_Unmask(IQ_EXT);
    #endif
	// Get the switch on cause from ABB.
	Set_Switch_ON_Cause();
#endif

	/* loop to process messages */
	while (error_occured == FALSE)
	{
		/* Wait for the necessary events (infinite wait for a msg in the mailbox 0). */
		UINT16 received_event = rvf_wait (0xffff, 0);
					
		/* If an event related to mailbox 0 is received, then */
		if (received_event & RVF_TASK_MBOX_0_EVT_MASK) 
		{
			/* Read the message in the driver mailbox and delegate action..*/
			msg_ptr = (T_RV_HDR *) rvf_read_mbox(SPI_MAILBOX);

            #ifdef RVM_PWR_SWE
			if(spi_process(msg_ptr)) 
			{
				pwr_process(msg_ptr);
			}
            #else
			spi_process(msg_ptr);
			#endif
		}

        #ifdef RVM_PWR_SWE
		/* Timers */
        if (received_event & SPI_TIMER0_WAIT_EVENT)
        {
           pwr_bat_test_timer_process();
        }

		if (received_event & SPI_TIMER1_WAIT_EVENT)
		/* timer used to detect the end of the CI charge */
        {
           pwr_CI_charge_timer_process();
        }

        if (received_event & SPI_TIMER2_WAIT_EVENT)
		/* timer used to detect the end of the CV charge */
		{
           pwr_CV_charge_timer_process();
        }
        
		if (received_event & SPI_TIMER3_WAIT_EVENT) 
		/* timer used to check the battery discharge level */
		{
           pwr_discharge_timer_process();
        }
		#endif
	}	 // end of while
	return RV_OK;	
}



/**********************************************************************************
* Function	  : spi_adc_on
*
* Description : Put the variable is_adc_on of the T_SPI_GBL_INFO structure to TRUE.
*				This variable is used for the battery management. 
*               This function is called by the CST entity.
*
* Parameters  : None
*
* Return      : None
* 
**********************************************************************************/
void spi_adc_on (void)
{
   SPI_GBL_INFO_PTR->is_adc_on = TRUE;

   rvf_send_trace("SPI: ADC are on",15,
                   NULL_PARAM,
                   RV_TRACE_LEVEL_DEBUG_LOW,
                   SPI_USE_ID);
}