FreeCalypso > hg > fc-tourmaline

view src/nucleus/csc.c @ 287:3dee79757ae4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
UI fw: load handheld audio mode on boot We have now reached the point where use of audio mode config files should be considered mandatory. In ACI usage we can tell users that they need to perform an AT@AUL of some appropriate audio mode, but in UI-enabled fw we really need to have the firmware load audio modes on its own, so that correct audio config gets established when the handset or development board runs on its own, without a connected host computer. Once have FC Venus with both main and headset audio channels and headset plug insertion detection, our fw will need to automatically load the handheld mode or the headset mode depending on the plug insertion state. For now we load only the handheld mode, which has been tuned for FC-HDS4 on FC Luna.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 13 Nov 2021 03:20:57 +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       */
/*                                                                       */
/*      csc.c                                          Nucleus PLUS 1.14 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      CS -    Common Services                                          */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains linked list manipulation facilities used      */
/*      throughout the Nucleus PLUS system.  These facilities operate    */
/*      on doubly-linked circular lists.                                 */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      CSC_Place_On_List                   Place node at the end of a   */
/*                                            list                       */
/*      CSC_Priority_Place_On_List          Place node in priority order */
/*                                            on a list                  */
/*      CSC_Remove_From_List                Remove a node from a list    */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      nucleus.h                           Nucleus PLUS constants       */
/*      cs_defs.h                           Common service definitions   */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Changed void to VOID, removed                    */
/*                        clearing link pointers during                  */
/*                        removal of a node from a list,                 */
/*                        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.                            */
/*      03-26-1999      Released 1.11m (new release                      */
/*                        numbering scheme)                              */
/*      04-17-2002      Released version 1.13m                           */
/*      11-07-2002      Released version 1.14                            */
/*************************************************************************/
#define         NU_SOURCE_FILE


#include        "cs_defs.h"                 /* Include CS definitions    */
#include        "cs_extr.h"                 /* Common service functions  */


/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      CSC_Place_On_List                                                */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function places the specified node at the end of specified  */
/*      linked list.                                                     */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      various components                                               */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      head                                Pointer to head pointer      */
/*      node                                Pointer to node to add       */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      modified list                                                    */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         NAME            DATE                    REMARKS               */
/*                                                                       */
/*      W. Lamie        03-01-1993      Created initial version 1.0      */
/*      D. Lamie        04-19-1993      Verified version 1.0             */
/*                                                                       */
/*************************************************************************/

#ifndef NU_INLINE

VOID    CSC_Place_On_List(CS_NODE **head, CS_NODE *new_node)
{
NU_SUPERV_USER_VARIABLES

    /* Switch to supervisor mode */
    NU_SUPERVISOR_MODE();

    /* Determine if the list in non-empty.  */
    if (*head)
    {

        /* The list is not empty.  Add the new node to the end of
           the list.  */
        new_node -> cs_previous =               (*head) -> cs_previous;
        (new_node -> cs_previous) -> cs_next =  new_node;
        new_node -> cs_next =                   (*head);
        (new_node -> cs_next) -> cs_previous =  new_node;
    }
    else
    {

        /* The list is empty, setup the head and the new node.  */
        (*head) =  new_node;
        new_node -> cs_previous =  new_node;
        new_node -> cs_next =      new_node;
    }

    /* Return to user mode */
    NU_USER_MODE();
}

#endif

/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      CSC_Priority_Place_On_List                                       */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function places the specified node after all other nodes on */
/*      the list of equal or greater priority.  Note that lower          */
/*      numerical values indicate greater priority.                      */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      various components                                               */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      head                                Pointer to head pointer      */
/*      node                                Pointer to node to add       */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      modified list                                                    */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         NAME            DATE                    REMARKS               */
/*                                                                       */
/*      W. Lamie        03-01-1993      Created initial version 1.0      */
/*      D. Lamie        04-19-1993      Verified version 1.0             */
/*                                                                       */
/*************************************************************************/

VOID    CSC_Priority_Place_On_List(CS_NODE **head, CS_NODE *new_node)
{

CS_NODE         *search_ptr;                /* List search pointer       */
NU_SUPERV_USER_VARIABLES

    /* Switch to supervisor mode */
    NU_SUPERVISOR_MODE();

    /* Determine if the list in non-empty.  */
    if (*head)
    {

        /* Search the list to find the proper place for the new node.  */
        search_ptr =  (*head);

        /* Check for insertion before the first node on the list.  */
        if (search_ptr -> cs_priority > new_node -> cs_priority)
        {

            /* Update the head pointer to point at the new node.  */
            (*head) =  new_node;
        }
        else
        {

            /* We know that the new node is not the highest priority and
               must be placed somewhere after the head pointer.  */

            /* Move search pointer up to the next node since we are trying
               to find the proper node to insert in front of. */
            search_ptr =  search_ptr -> cs_next;
            while ((search_ptr -> cs_priority <= new_node -> cs_priority) &&
                   (search_ptr != (*head)))
            {

                /* Move along to the next node.  */
                search_ptr =  search_ptr -> cs_next;
            }
        }

        /* Insert before search pointer.  */
        new_node -> cs_previous =               search_ptr -> cs_previous;
        (new_node -> cs_previous) -> cs_next =  new_node;
        new_node -> cs_next =                   search_ptr;
        (new_node -> cs_next) -> cs_previous =  new_node;
    }
    else
    {

        /* The list is empty, setup the head and the new node.  */
        (*head) =  new_node;
        new_node -> cs_previous =  new_node;
        new_node -> cs_next =      new_node;
    }

    /* Return to user mode */
    NU_USER_MODE();
}

/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      CSC_Remove_From_List                                             */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function removes the specified node from the specified      */
/*      linked list.                                                     */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      various components                                               */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      head                                Pointer to head pointer      */
/*      node                                Pointer to node to add       */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      modified list                                                    */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         NAME            DATE                    REMARKS               */
/*                                                                       */
/*      W. Lamie        03-01-1993      Created initial version 1.0      */
/*      D. Lamie        04-19-1993      Verified version 1.0             */
/*      W. Lamie        03-01-1994      Removed clearing link pointers   */
/*                                        during removal of a node from  */
/*                                        list, resulting in version 1.1 */
/*      R. Pfaff -                                                       */
/*      D. Lamie        03-18-1994      Verified version 1.1             */
/*                                                                       */
/*************************************************************************/

#ifndef NU_INLINE

VOID    CSC_Remove_From_List(CS_NODE **head, CS_NODE *node)
{
NU_SUPERV_USER_VARIABLES

    /* Switch to supervisor mode */
    NU_SUPERVISOR_MODE();

    /* Determine if this is the only node in the system.  */
    if (node -> cs_previous == node)
    {

        /* Yes, this is the only node in the system.  Clear the node's
           pointers and the head pointer.  */
        (*head) =              NU_NULL;
    }
    else
    {

        /* Unlink the node from a multiple node list.  */
        (node -> cs_previous) -> cs_next =  node -> cs_next;
        (node -> cs_next) -> cs_previous =  node -> cs_previous;

        /* Check to see if the node to delete is at the head of the
           list. */
        if (node == *head)

            /* Move the head pointer to the node after.  */
            *head =  node -> cs_next;
    }

    /* Return to user mode */
    NU_USER_MODE();
}

#endif