FreeCalypso > hg > fc-tourmaline

view src/cs/services/tty/tty_task.c @ 223:740a8e8fc9d7

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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 4e78acac3d88
children
line wrap: on
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/**
 * @file   tty_task.c
 *
 * Coding of the main TTY function : tty_core
 * This function loop in the process message function for waiting messages.
 *
 * @author	Frederic Turgis (f-turgis@ti.com) & Gerard Cauvy (g-cauvy@ti.com)
 * @version 0.1
 */

/*
 * History:
 *
 * 	Date       	Modification
 *  ------------------------------------
 *  01/27/2003	Create
 *
 * (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved
 */

#ifndef _WINDOWS
  #include "config/l1sw.cfg"
#endif

#include "tty/tty_env.h"
#include "tty/tty_i.h"

#include "rv/rv_general.h"
#include "rvf/rvf_api.h"
#include "rvm/rvm_use_id_list.h"

#if (TRACE_TYPE == 1) || (TRACE_TYPE == 4)
  #ifndef _WINDOWS
    #include "config/sys.cfg"
    #include "config/chipset.cfg"
  #endif
  #include "l1_types.h"
  #include "l1_confg.h"
  #include "l1_trace.h"
#endif

#if (L1_GTT == 1)
  /* External prototype. */
  extern void l1gtt_initialize(void);
  extern void l1gtt_exit(void);
  extern void l1gtt_main_processing(void);
  extern void l1gtt_init_trace(void);
#else
  /* Dummy functions */
  void l1gtt_initialize(void) {}
  void l1gtt_exit(void) {}
  void l1gtt_main_processing(void) {}
  void l1gtt_init_trace(void) {}
#endif


/**
 * @name Functions implementation
 *
 */
/*@{*/

/**
 * function: tty_core
 */
T_RV_RET tty_core(void)
{
  BOOLEAN error_occured = FALSE;
  T_RV_HDR* msg_p;
  UINT16 received_event;

  TTY_SEND_TRACE("TTY TASK Started", RV_TRACE_LEVEL_DEBUG_HIGH );

  l1gtt_init_trace();

  /* loop to process messages */
  while (error_occured == FALSE)
  {
    /* Wait for the necessary events. */
    received_event = rvf_wait ( 0xffff,0);

    if (received_event & TTY_INIT_EVENT_MASK)
    {
      l1gtt_initialize();
    }
    else if (received_event & TTY_EXIT_EVENT_MASK)
    {
      l1gtt_exit();
    }
    else if (received_event & TTY_DATA_EVENT_MASK)
    {
      l1gtt_main_processing();
    }
  }

  return RV_OK;
}