view src/nucleus/mbce.c @ 281:a75eefbf8be4

Phone boot with PWON: weed out short button presses Every standard end user phone has a design provision, most naturally implemented in firmware, whereby the PWON button effects a boot only if it is held down long enough - short presses of this PWON button are detected, assumed to be spurious and cause the fw to power back off instead of proceeding with boot. The present change introduces this standard function in FreeCalypso.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 24 Sep 2021 02:03:08 +0000
parents 4e78acac3d88
children
line wrap: on
line source

/*************************************************************************/
/*                                                                       */
/*               Copyright Mentor Graphics Corporation 2002              */
/*                         All Rights Reserved.                          */
/*                                                                       */
/* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS  */
/* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS   */
/* SUBJECT TO LICENSE TERMS.                                             */
/*                                                                       */
/*************************************************************************/

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                               VERSION       */
/*                                                                       */
/*      mbce.c                                         Nucleus PLUS 1.14 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      MB - Mailbox Management                                          */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains the error checking routines for the core      */
/*      functions in the Mailbox component.  This permits easy removal   */
/*      of error checking logic when it is not needed.                   */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      MBCE_Create_Mailbox                 Create a mailbox             */
/*      MBCE_Delete_Mailbox                 Delete a mailbox             */
/*      MBCE_Send_To_Mailbox                Send a mailbox message       */
/*      MBCE_Receive_From_Mailbox           Receive a mailbox message    */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      cs_extr.h                           Common Service functions     */
/*      tc_extr.h                           Thread Control functions     */
/*      mb_extr.h                           Mailbox functions            */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Created new file that contains                   */
/*                      error checking shells for core                   */
/*                      mailbox functions, also                          */
/*                      changed interface to exactly                     */
/*                      match prototype, resulting in                    */
/*                      version 1.1                                      */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*      04-17-1996      updated to version 1.2                           */
/*      03-24-1998      Released version 1.3                             */
/*      04-17-2002      Released version 1.13m                           */
/*      11-07-2002      Released version 1.14                            */
/*************************************************************************/
#define         NU_SOURCE_FILE


#include        "cs_extr.h"                 /* Common service functions  */
#include        "tc_extr.h"                 /* Thread control functions  */
#include        "mb_extr.h"                 /* Mailbox functions         */


/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      MBCE_Create_Mailbox                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function performs error checking on the parameters supplied */
/*      to the mailbox create function.                                  */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      Application                                                      */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      MBC_Create_Mailbox                  Actual create mailbox funct. */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      mailbox_ptr                         Mailbox control block pointer*/
/*      name                                Mailbox name                 */
/*      suspend_type                        Suspension type              */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      NU_INVALID_MAILBOX                  Mailbox pointer is NULL      */
/*      NU_INVALID_SUSPEND                  Suspension type is invalid   */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Modified interface to exactly                    */
/*                      match prototype, resulting in                    */
/*                      version 1.1                                      */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*                                                                       */
/*************************************************************************/
STATUS  MBCE_Create_Mailbox(NU_MAILBOX *mailbox_ptr, CHAR *name, 
                                                OPTION suspend_type)
{

MB_MCB         *mailbox;                    /* Mailbox control block ptr */
STATUS          status;                     /* Completion status         */


    /* Move input mailbox pointer into internal pointer.  */
    mailbox =  (MB_MCB *) mailbox_ptr;

    /* Check for a NULL mailbox pointer or an already created mailbox.  */
    if ((mailbox == NU_NULL) || (mailbox -> mb_id == MB_MAILBOX_ID))
    
        /* Invalid mailbox control block pointer.  */
        status =  NU_INVALID_MAILBOX;
        
    else if ((suspend_type != NU_FIFO) && (suspend_type != NU_PRIORITY))
    
        /* Invalid suspension type.  */
        status =  NU_INVALID_SUSPEND;
        
    else
    
        /* Call the actual service to create the mailbox.  */
        status =  MBC_Create_Mailbox(mailbox_ptr, name, suspend_type);
        
    /* Return completion status.  */
    return(status);
}


/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      MBCE_Delete_Mailbox                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function performs error checking on the parameters supplied */
/*      to the actual delete mailbox function.                           */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      Application                                                      */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      MBC_Delete_Mailbox                  Actual delete mailbox funct. */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      mailbox_ptr                         Mailbox control block pointer*/
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      NU_INVALID_MAILBOX                  Invalid mailbox supplied     */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*        DATE                    REMARKS                                */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Modified interface to exactly                    */
/*                      match prototype, resulting in                    */
/*                      version 1.1                                      */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*                                                                       */
/*************************************************************************/
STATUS  MBCE_Delete_Mailbox(NU_MAILBOX *mailbox_ptr)
{

MB_MCB         *mailbox;                    /* Mailbox control block ptr */
STATUS          status;                     /* Completion status         */

    
    /* Move input mailbox pointer into internal pointer.  */
    mailbox =  (MB_MCB *) mailbox_ptr;

    /* Determine if the mailbox pointer is valid.  */
    if ((mailbox) && (mailbox -> mb_id == MB_MAILBOX_ID))
    
        /* Mailbox pointer is valid, call function to delete it.  */
        status =  MBC_Delete_Mailbox(mailbox_ptr);
        
    else
    
        /* Mailbox pointer is invalid, indicate in completion status.  */
        status =  NU_INVALID_MAILBOX;
        
    /* Return completion status.  */
    return(status);
}


/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      MBCE_Send_To_Mailbox                                             */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function performs error checking on the parameters supplied */
/*      to the send-to-mailbox function.                                 */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      Application                                                      */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      MBC_Sent_To_Mailbox                 Actual mailbox send function */
/*      TCCE_Suspend_Error                  Check suspend validity       */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      mailbox_ptr                         Mailbox control block pointer*/
/*      message                             Pointer to message to send   */
/*      suspend                             Suspension option if full    */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      NU_INVALID_MAILBOX                  Mailbox pointer is invalid   */
/*      NU_INVALID_POINTER                  Message pointer is invalid   */
/*      NU_INVALID_SUSPEND                  Invalid suspend request      */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*        DATE                    REMARKS                                */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Modified interface to exactly                    */
/*                      match prototype, resulting in                    */
/*                      version 1.1                                      */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*                                                                       */
/*************************************************************************/
STATUS  MBCE_Send_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, 
                                                          UNSIGNED suspend)
{

MB_MCB         *mailbox;                    /* Mailbox control block ptr */
STATUS          status;                     /* Completion status         */


    /* Move input mailbox pointer into internal pointer.  */
    mailbox =  (MB_MCB *) mailbox_ptr;

    /* Determine if mailbox pointer is invalid.  */
    if (mailbox == NU_NULL)
    
        /* Mailbox pointer is invalid, indicate in completion status.  */
        status =  NU_INVALID_MAILBOX;

    else if (mailbox -> mb_id != MB_MAILBOX_ID)
    
        /* Mailbox pointer is invalid, indicate in completion status.  */
        status =  NU_INVALID_MAILBOX;

    else if (message == NU_NULL)
    
        /* Message pointer is invalid, indicate in completion status.  */
        status =  NU_INVALID_POINTER;

    else if ((suspend) && (TCCE_Suspend_Error()))
    
        /* Indicate that suspension is only valid from a task thread.  */
        status =  NU_INVALID_SUSPEND;

    else
    
        /* Parameters are valid, call actual function.  */
        status =  MBC_Send_To_Mailbox(mailbox_ptr, message, suspend);

    /* Return the completion status.  */
    return(status);
}


/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      MBCE_Receive_From_Mailbox                                        */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function performs error checking on the parameters supplied */
/*      to the receive message from mailbox function.                    */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      Application                                                      */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      MBC_Receive_From_Mailbox            Actual receive function      */
/*      TCCE_Suspend_Error                  Check suspend validity       */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      mailbox_ptr                         Mailbox control block pointer*/
/*      message                             Pointer to message to send   */
/*      suspend                             Suspension option if empty   */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      NU_INVALID_MAILBOX                  Mailbox pointer is invalid   */
/*      NU_INVALID_POINTER                  Message pointer is invalid   */
/*      NU_INVALID_SUSPEND                  Invalid suspend request      */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Modified interface to exactly                    */
/*                      match prototype, resulting in                    */
/*                      version 1.1                                      */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*                                                                       */
/*************************************************************************/
STATUS  MBCE_Receive_From_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, 
                                                        UNSIGNED suspend)
{

MB_MCB         *mailbox;                    /* Mailbox control block ptr */
STATUS          status;                     /* Completion status         */


    /* Move input mailbox pointer into internal pointer.  */
    mailbox =  (MB_MCB *) mailbox_ptr;

    /* Determine if mailbox pointer is invalid.  */
    if (mailbox == NU_NULL)
    
        /* Mailbox pointer is invalid, indicate in completion status.  */
        status =  NU_INVALID_MAILBOX;

    else if (mailbox -> mb_id != MB_MAILBOX_ID)
    
        /* Mailbox pointer is invalid, indicate in completion status.  */
        status =  NU_INVALID_MAILBOX;

    else if (message == NU_NULL)
    
        /* Message pointer is invalid, indicate in completion status.  */
        status =  NU_INVALID_POINTER;

    else if ((suspend) && (TCCE_Suspend_Error()))
    
        /* Indicate that suspension is only valid from a task thread.  */
        status =  NU_INVALID_SUSPEND;

    else
    
        /* Parameters are valid, call actual function.  */
        status =  MBC_Receive_From_Mailbox(mailbox_ptr, message, suspend);

    /* Return the completion status.  */
    return(status);
}