view src/nucleus/tci.c @ 51:04aaa5622fa7

disable deep sleep when Iota LEDB is on TI's Iota chip docs say that CLK13M must be running in order for LEDB to work, and practical experience on Mot C139 which uses Iota LEDB for its keypad backlight concurs: if Calypso enters deep sleep while the keypad backlight is turned on, the light flickers visibly as the chipset goes into and out of deep sleep. TI's original L1 sleep manager code had logic to disable deep sleep when LT_Status() returns nonzero, but that function only works for B-Sample and C-Sample LT, always returns 0 on BOARD 41 - no check of Iota LEDB status anywhere. Change this code for our current hardware: disable deep sleep when Iota LEDB has been turned on through LLS.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 19 Oct 2020 05:11:29 +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       */
/*                                                                       */
/*      tci.c                                          Nucleus PLUS 1.14 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      TC - Thread Control                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains the initialization routine for this           */
/*      component.                                                       */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      TCI_Initialize                      Thread Control Initialization*/
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      tc_defs.h                           Thread Control constants     */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      08-09-1993      Corrected problem initializing                   */
/*                        the LISR association table,                    */
/*                        resulting in version 1.0a                      */
/*      08-09-1993      Verified version 1.0a                            */
/*      03-01-1994      Changed to initialize the system                 */
/*                        protection rather than the                     */
/*                        schedule protection, 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"                 /* Common Service constants  */
#include        "tc_defs.h"                 /* Thread Control constants  */
#include        "tc_extr.h"                 /* Thread Control interfaces */

/* Define external inner-component global data references.           */

extern CS_NODE         *TCD_Created_Tasks_List;
extern UNSIGNED         TCD_Total_Tasks;
extern TC_TCB          *TCD_Priority_List[TC_PRIORITIES];
extern UNSIGNED         TCD_Priority_Groups;
extern DATA_ELEMENT     TCD_Sub_Priority_Groups[TC_MAX_GROUPS];
extern INT              TCD_Highest_Priority;
extern TC_TCB          *TCD_Execute_Task;
extern VOID            *TCD_Current_Thread;
extern UNSIGNED_CHAR    TCD_Registered_LISRs[NU_MAX_VECTORS+1];
extern VOID           (*TCD_LISR_Pointers[NU_MAX_LISRS+1])(INT vector);
extern INT              TCD_Interrupt_Count;
extern INT              TCD_Stack_Switched;
extern TC_PROTECT       TCD_List_Protect;
extern TC_PROTECT       TCD_System_Protect;
extern TC_PROTECT       TCD_LISR_Protect;
extern CS_NODE         *TCD_Created_HISRs_List;
extern UNSIGNED         TCD_Total_HISRs;
extern TC_HCB          *TCD_Active_HISR_Heads[TC_HISR_PRIORITIES];
extern TC_HCB          *TCD_Active_HISR_Tails[TC_HISR_PRIORITIES];
extern TC_HCB          *TCD_Execute_HISR;
extern TC_PROTECT       TCD_HISR_Protect;
extern INT              TCD_Interrupt_Level;



/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      TCI_Initialize                                                   */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function initializes the data structures that control the   */
/*      operation of the TC component.  The system is initialized as     */
/*      idle.  This routine must be executed from Supervisor mode in     */
/*      Supervisor/User mode switching kernels.                          */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      INC_Initialize                      System initialization        */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      TCD_Created_Tasks_List              List of created tasks        */
/*      TCD_Total_Tasks                     Number of created tasks      */
/*      TCD_Priority_List                   Ready task array             */
/*      TCD_Priority_Groups                 Ready priority group bit map */
/*      TCD_Sub_Priority_Groups             Sub-priority groups bit map  */
/*      TCD_Highest_Priority                Highest priority task        */
/*      TCD_Execute_Task                    Top priority task to execute */
/*      TCD_Created_HISRs_List              List of created HISRs        */
/*      TCD_Total_HISRs                     Number of created HISRs      */
/*      TCD_Active_HISR_Heads               Active HISR list head ptrs   */
/*      TCD_Active_HISR_Tails               Active HISR list tail ptrs   */
/*      TCD_Execute_HISR                    Top priority HISR to execute */
/*      TCD_Current_Thread                  Current thread pointer       */
/*      TCD_Registered_LISRs                Registered LISRs list        */
/*      TCD_LISR_Pointers                   Pointers to active LISRs     */
/*      TCD_Interrupt_Count                 Interrupt in progress counter*/
/*      TCD_Stack_Switched                  Interrupt stack switched flag*/
/*      TCD_List_Protect                    Protection of task list      */
/*      TCD_Schedule_Protect                Protection of scheduling     */
/*                                            data structures.           */
/*      TCD_HISR_Protect                    Protection of created HISR   */
/*                                            list                       */
/*      TCD_Interrupt_Level                 Enable interrupt level       */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      08-09-1993      Corrected problem initializing                   */
/*                        the LISR association table,                    */
/*                        resulting in version 1.0a                      */
/*      08-09-1993      Verified version 1.0a                            */
/*      03-01-1994      Changed to initialize the system                 */
/*                        protection rather than the                     */
/*                        schedule protection, resulting                 */
/*                        in version 1.1                                 */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*                                                                       */
/*************************************************************************/
VOID  TCI_Initialize(VOID)
{

int             i;                          /* Working index variable    */


    /* Initialize the created task list to NU_NULL.  */
    TCD_Created_Tasks_List =  NU_NULL;

    /* Initialize the total number of created tasks to 0.  */
    TCD_Total_Tasks =  0;

    /* Initialize the array of ready task lists.  */
    for (i = 0; i < TC_PRIORITIES; i++)
        TCD_Priority_List[i] =  0;

    /* Initialize the bit maps that represent that at least one task is
       ready at the same priority level.  */
    TCD_Priority_Groups =  0;

    for (i = 0; i < TC_MAX_GROUPS; i++)
        TCD_Sub_Priority_Groups[i] =  0;

    /* Initialize the highest priority flag.  */
    TCD_Highest_Priority =  TC_PRIORITIES;

    /* Initialize pointers to the task to execute, HISR to execute,
       and current thread of execution.  */
    TCD_Execute_Task =          NU_NULL;
    TCD_Execute_HISR =          NU_NULL;
    TCD_Current_Thread =        NU_NULL;

    /* Initialize the created HISRs list to NU_NULL.  */
    TCD_Created_HISRs_List =  NU_NULL;

    /* Initialize the total number of created HISRs to 0.  */
    TCD_Total_HISRs =  0;

    /* Initialize the array of ready HISR list pointers.  */
    for (i = 0; i < TC_HISR_PRIORITIES; i++)
    {
        TCD_Active_HISR_Heads[i] =  NU_NULL;
        TCD_Active_HISR_Tails[i] =  NU_NULL;
    }

    /* Initialize the LISR interrupt control data structures.  */
    for (i = 0; i <= NU_MAX_VECTORS; i++)
        TCD_Registered_LISRs[i] =  NU_FALSE;

    for (i = 0; i <= NU_MAX_LISRS; i++)
        TCD_LISR_Pointers[i] =  NU_NULL;

    /* Initialize the interrupt processing variables.  */
    TCD_Interrupt_Count =  0;
    TCD_Stack_Switched =   0;

    /* Initialize the task control protection structures.  */
    TCD_List_Protect.tc_tcb_pointer =           NU_NULL;
    TCD_System_Protect.tc_tcb_pointer =         NU_NULL;
    TCD_LISR_Protect.tc_tcb_pointer =           NU_NULL;
    TCD_HISR_Protect.tc_tcb_pointer =           NU_NULL;

    /* Initialize the interrupt level to enable all interrupts.  */
    TCD_Interrupt_Level =  NU_ENABLE_INTERRUPTS;
}