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view src/gpf/frame/vsi_sem.c @ 51:04aaa5622fa7

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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
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/* 
+------------------------------------------------------------------------------
|  File:       vsi_sem.c
+------------------------------------------------------------------------------
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  This Module defines the virtual system interface part
|             for the semaphore handling.
+----------------------------------------------------------------------------- 
*/ 

#ifndef __VSI_SEM_C__
#define __VSI_SEM_C__
#endif

/*==== INCLUDES ===================================================*/

#include "typedefs.h"
#include "vsi.h"
#include "os.h"
#include "frm_defs.h"
#include "frm_types.h"
#include "frm_glob.h"

/*==== TYPES ======================================================*/


/*==== CONSTANTS ==================================================*/


/*==== EXTERNALS ==================================================*/
/* -------------- S H A R E D - BEGIN ---------------- */
#ifdef _TOOLS_
#pragma data_seg("FRAME_SHARED")
#endif

/*==== VARIABLES ==================================================*/


#ifdef _TOOLS_
#pragma data_seg()
#endif
/* -------------- S H A R E D - END ---------------- */

/*==== FUNCTIONS ==================================================*/


#ifndef RUN_INT_RAM
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-Frame (8415)           MODULE  : VSI_SEM             |
| STATE   : code                       ROUTINE : vsi_s_open          |
+--------------------------------------------------------------------+

  PURPOSE : opens a semaphore, creates if not exist

*/

T_HANDLE vsi_s_open (T_HANDLE Caller, char *Name, USHORT Count)
{
OS_HANDLE SemHandle;

  /*
   * if semaphore already exists, return handle
   */
  if ( os_OpenSemaphore ( Caller, Name, &SemHandle ) != OS_ERROR )
    return SemHandle;

  /*
   * if semaphore not exists, create
   */
  if ( os_CreateSemaphore ( Caller, Name, Count, &SemHandle, pf_TaskTable[Caller].MemPoolHandle ) != OS_ERROR )
    return SemHandle;
  else
    vsi_o_assert( Caller, OS_SYST_ERR_MAX_SEMA, __FILE__, __LINE__,
                  "Number of created semaphores > MAX_SEMAPHORES" );

  /*
   * if semaphore cannot be created, return VSI_ERROR
   */
  return VSI_ERROR;
}
#endif

#ifndef RUN_INT_RAM
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-Frame (8415)           MODULE  : VSI_SEM             |
| STATE   : code                       ROUTINE : vsi_s_close          |
+--------------------------------------------------------------------+

  PURPOSE : closes a semaphore

*/

int vsi_s_close (T_HANDLE Caller, T_HANDLE SemHandle)
{

  if ( os_CloseSemaphore ( Caller, SemHandle ) != OS_ERROR )
    return VSI_OK;

  return VSI_ERROR;
}
#endif

#ifndef RUN_FLASH
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-Frame (8415)           MODULE  : VSI_SEM             |
| STATE   : code                       ROUTINE : vsi_s_get           |
+--------------------------------------------------------------------+

  PURPOSE : obtains a semaphore

*/

int vsi_s_get (T_HANDLE Caller, T_HANDLE SemHandle)
{
LONG Status;

  Status = os_ObtainSemaphore ( Caller, SemHandle, OS_SUSPEND );
  if ( Status == OS_OK || Status == OS_WAITED )
    return VSI_OK;

  return VSI_ERROR;
}
#endif

#ifndef RUN_FLASH
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-Frame (8415)           MODULE  : VSI_SEM             |
| STATE   : code                       ROUTINE : vsi_s_release       |
+--------------------------------------------------------------------+

  PURPOSE : releases a semaphore

*/

int vsi_s_release (T_HANDLE Caller, T_HANDLE SemHandle)
{

  if ( os_ReleaseSemaphore ( Caller, SemHandle ) != OS_ERROR )
    return VSI_OK;

  return VSI_ERROR;
}
#endif

#ifndef RUN_INT_RAM
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-Frame (8415)           MODULE  : VSI_SEM             |
| STATE   : code                       ROUTINE : vsi_s_status        |
+--------------------------------------------------------------------+

  PURPOSE : request the current count of a semaphore

*/

int vsi_s_status (T_HANDLE Caller, T_HANDLE SemHandle, USHORT *Count )
{

  if ( os_QuerySemaphore ( Caller, SemHandle, Count ) != OS_ERROR )
    return VSI_OK;

  return VSI_ERROR;
}
#endif