view src/gpf/ccd/gsm1_asn.c @ 72:7bf39f5e834d

backlight control on Luna: switch PWL instead of LEDB This change is preliminary toward upcoming rework of backlight control logic in our UI firmware. LEDB does not exist on Tango-based platforms (it is not brought out on Tango modules), thus turning it on and off produces absolutely no effect beyond making L1 disable deep sleep when LEDB is turned on. However, both iWOW DSK and our upcoming FC Caramel2 boards have a PWL LED, so let's switch that LED on and off to indicate the state of the UI firmware's backlight control. Note that we are NOT switching the actual Luna LCD backlight here, even though it is trivially controlled with a GPIO. The reason for this seemingly strange choice is that we don't want to turn this development board LCD backlight off until we bring the higher-level backlight control logic up to par, including new logic to "swallow" the first keypress that turns on the darkened LCD.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 24 Oct 2020 07:39:54 +0000
parents 4e78acac3d88
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   : gsm1_asn.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 :  Definition of encoding and decoding functions for GSM1_ASN elements 
+----------------------------------------------------------------------------- 
*/ 


/*
 * standard definitions like GLOBAL, UCHAR, ERROR etc.
 */
#include "typedefs.h"
#include "header.h"

/*
 * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only
 * look at ccdapi.h
 */
#undef USE_DRIVER
#include "ccdapi.h"

/*
 * Types and functions for bit access and manipulation
 */
#include "ccd_globs.h"
#include "bitfun.h"

/*
 * Prototypes of ccd internal functions
 */
#include "ccd.h"

/*
 * Declaration of coder/decoder tables
 */
#include "ccdtable.h"
#include "ccddata.h"


#ifndef RUN_INT_RAM
/*
+--------------------------------------------------------------------+
| PROJECT : CCD (6144)                 MODULE  : CDC_GSM             |
| STATE   : code                       ROUTINE : cdc_gsm1asn_decode  |
+--------------------------------------------------------------------+

  PURPOSE : Decoding of the GSM Type ASN1 element. This element
            consists of a 8 bit T component a
            8 Bit L component and a V component wich
            length depends on the value of the L component. The value
            of L may be coded fix as 0x80. In this case a end of 
            content tag must follow the V component to identify the
            end of this element (implicit length)

*/

SHORT cdc_gsm1asn_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
{
  T_TLV_SORT tlv_inf;
  
  tlv_inf.gotTag = TRUE;
  tlv_inf.gotLen = TRUE;
  
#ifdef DEBUG_CCD
  #ifndef CCD_SYMBOLS
  TRACE_CCD (globs, "cdc_gsm1asn_decode()");
  #else
  TRACE_CCD (globs, "cdc_gsm1asn_decode() %s", ccddata_get_alias((USHORT) e_ref, 1));
  #endif
#endif
  
  return cdc_tlv_decode (c_ref, e_ref, &tlv_inf, globs);
}
#endif /* !RUN_INT_RAM */

#ifndef RUN_INT_RAM
/*
+--------------------------------------------------------------------+
| PROJECT : CCD (6144)                 MODULE  : CDC_GSM             |
| STATE   : code                       ROUTINE : cdc_gsm1asn_encode  |
+--------------------------------------------------------------------+

  PURPOSE : Encoding of the GSM Type ASN1 element. This element
            consists of a 8 bit T component a
            8 Bit L component and a V component wich
            length depends on the value of the L component. The value
            of L may be coded fix as 0x80. In this case a end of 
            content tag must follow the V component to identify the
            end of this element (implicit length)

*/

SHORT cdc_gsm1asn_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
{
#ifdef DEBUG_CCD
  #ifndef CCD_SYMBOLS
  TRACE_CCD (globs, "cdc_gsm1asn_encode()");
  #else
  TRACE_CCD (globs, "cdc_gsm1asn_encode() %s", ccddata_get_alias((USHORT) e_ref, 1));
  #endif
#endif
  
  cdc_tlv_encode (e_ref, 8, 8, globs);

  return 1;
}
#endif /* !RUN_INT_RAM */