view src/cs/drivers/drv_app/power/board/power.c @ 223:740a8e8fc9d7

startup sync logic rework for the new PWON button boot scheme Previously we added logic to the MMI task to hold off PEI init until R2D is running, and then extended that condition to wait for FCHG init too. However, the dependencies of MMI upon R2D and FCHG don't start until mmiInit(), and that call is driven by Switch_ON() code, hence the wait for R2D and FCHG init can be made in that code path instead of the MMI task. Furthermore, with our new way of signaling PWON button boot to MMI, we need a new wait to ensure that the MMI task is up - previously this assurance was provided by the wait for Kp pointers to be set. Solution: revert our previous PEI init hold-off additions to MMI, add a new flag indicating MMI task init done, and put the combined wait for all needed conditions into our new PWON button boot code in power.c.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 27 Apr 2021 06:24:52 +0000
parents 0947a816580c
children 305d3bb691a5
line wrap: on
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/*******************************************************************************
*
* power.c
*
* Purpose: This file contains the functions used for power on and off
*          management of the board.
*          In case of RVM_PWR_SWE, this file contains also the
*          functions used for charger plug and unplug management.
*          They are all called after the occurence of the ABB interrupt.
*
* Author:  Candice Bazanegue (c-brille@ti.com)
*
* The present FreeCalypso version is heavily modified from TI's original,
* for the new FreeCalypso way of managing handset on/off state.
*
******************************************************************************/

#ifndef _WINDOWS
  #include "rv.cfg"
#endif

#include "abb/abb.h"
#include "rvm/rvm_use_id_list.h"
#include "spi/spi_env.h"
#include "power/power.h"
#include "rv/rv_defined_swe.h"	   // for RVM_PWR_SWE

#ifndef _WINDOWS
  #include "kpd/kpd_power_api.h"
  #include "ffs/ffs.h"
#endif  // _WINDOWS

#ifndef _WINDOWS
  /* Declare the variable containing pressed and released callback.  */
  extern T_KPD_KEYPAD Kp;

  extern effs_t ffs_exit(void);
#endif  // _WINDOWS

/// The ABB status used to know the cause of the Switch ON event.
static SYS_UWORD16 Power_abb_status = 0;


/*******************************************************************************
**
** Function      Power_ON_Button
**
** Description:  Informs the Protocol Stack that the Power ON key has been
**		 pressed, and thus allows it to start.
**
*******************************************************************************/
void Power_ON_Button(void)
{
#if (MMI != 0)
    extern void fchs_pwon_button_boot(void);
    extern int fchg_is_running, r2d_is_running, mmi_task_init_done;

    while (!fchg_is_running || !r2d_is_running || !mmi_task_init_done)
	rvf_delay(8);

    fchs_pwon_button_boot();
#endif
}


/*******************************************************************************
**
** Function      Power_OFF_Button
**
** Description:  Informs the Protocol Stack that the Power OFF key has been
**		 pressed, and thus allows it to stop.
**
*******************************************************************************/
void Power_OFF_Button(void)
{
    rvf_send_trace("Power off button", 16, NULL_PARAM, RV_TRACE_LEVEL_WARNING,
		   LCC_USE_ID);
    if (Kp.pressed && Kp.released) {
	(Kp.pressed)(KPD_PWR);  /* tell key is pressed */
	rvf_delay(5);
	(Kp.released)();        /* tell key is released */
    } else
	ABB_Power_Off();
}


/**
 * @brief Sets the cause of the switch ON event.
 *
 * This function get the ABB status register and stores it into the
 * global variable Power_abb_status.
 *
 * @noparam
 *
 * @noreturn
 */
void Set_Switch_ON_Cause(void)
{
   Power_abb_status = ABB_Read_Status();
}


/*******************************************************************************
**
** Function      Switch_ON
**
** Description   This function is called by the spi task after the board is
**               switched ON. It calls the appropriate function according
**               to the ABB status register.
**
** Warning       The Set_Switch_ON_Cause() function has to be called prior.
**
*******************************************************************************/
void Switch_ON(void)
{
   if (Power_abb_status & ONBSTS)
   {
      /* Switch on Condition on ON BUTTON Push */
      rvf_send_trace("Push Button from OFF to ON",26, NULL_PARAM,
		     RV_TRACE_LEVEL_DEBUG_LOW, LCC_USE_ID);
      Power_ON_Button();
   }

   else if (Power_abb_status & ONRSTS)
   {
      /* Switch on Condition on ON REM transition 0->1 */
      rvf_send_trace("ON Remote",9, NULL_PARAM, RV_TRACE_LEVEL_DEBUG_LOW,
		     LCC_USE_ID);
      Power_ON_Remote();
   }

   else if (Power_abb_status & CHGSTS)
   {
      /* Switch on Condition on CHARGER IC PLUG */
      rvf_send_trace("Boot: Charger Plug",18, NULL_PARAM,
		     RV_TRACE_LEVEL_DEBUG_LOW, LCC_USE_ID);
   }

   else
   {
      /* In FreeCalypso start from reset is NOT the same as PWON! */
      rvf_send_trace("Start from reset",16, NULL_PARAM,
		     RV_TRACE_LEVEL_DEBUG_LOW, LCC_USE_ID);
   }
}


/*******************************************************************************
**
** Function         Power_ON_Remote
**
** Description
**
**
*******************************************************************************/
void Power_ON_Remote(void)
{
}


/*******************************************************************************
**
** Function         Power_OFF_Remote
**
** Description
**
**
*******************************************************************************/
void Power_OFF_Remote(void)
{
}


/*******************************************************************************
**
** Function         Power_IT_WakeUp
**
** Description
**
**
*******************************************************************************/
void Power_IT_WakeUp(void)
{
}