view src/gpf/misc/tools.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 (2020-10-24)
parents 4e78acac3d88
children
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/* 
+------------------------------------------------------------------------------
|  File:       tools.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 implements some format conversion functions.
+----------------------------------------------------------------------------- 
*/ 

#ifndef __TOOLS_C__
#define __TOOLS_C__
#endif
 
/*==== INCLUDES ===================================================*/

#include "typedefs.h"
#include <string.h>
#include <ctype.h>
#include "vsi.h"
#include "tools.h"

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


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


/*==== EXTERNALS ==================================================*/


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


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



#ifndef RUN_INT_RAM
/*
+------------------------------------------------------------------------------
|  Function     :  GetNextToken
+------------------------------------------------------------------------------
|  Description  :  Exract text until next separator.
|
|  Parameters   :  source     - where to search
|                  token      - destination for text
|                  seperator  - sperator
|
|  Return       :  string length of token
+------------------------------------------------------------------------------
*/
unsigned int GetNextToken (char *source, char *token, char const *seperators)
{
  unsigned int  i, j, k, sep_len, src_len;
  BOOL sepFound = FALSE;

  sep_len = strlen (seperators);
  src_len = strlen (source);

  i = 0;
  j = 0;
  k = 0;

  do
  {
    j = 0;
    sepFound = FALSE;

    while (j < sep_len)
    {
      if (source[i] EQ seperators[j])
        sepFound = TRUE;
      j++;
    }
    if (sepFound)
      i++;
  }
  while (i < src_len AND sepFound);

  sepFound = FALSE;

  while (!sepFound AND i < src_len)
  {
    j = 0;
    while (!sepFound AND j < sep_len)
    {
      if (source[i] EQ seperators[j])
        sepFound = TRUE;
      else
        j++;
    }

    if (!sepFound)
      token[k++] = source[i++];
  }
  token[k] = '\0';

  return strlen (token);
}
#endif

#ifndef RUN_FLASH
/*
+------------------------------------------------------------------------------
|  Function     :  HexToASCII
+------------------------------------------------------------------------------
|  Description  :  Convert hexadecimal value to ASCII string.
|
|  Parameters   :  value     - value to be converted
|                  *ptr      - destination for string
|                  num       - number of characters
|
|  Return       :  pointer behind the end of string 
+------------------------------------------------------------------------------
*/
char *HexToASCII (ULONG value, char *ptr, int num)
{
  UBYTE i;
  char v;

  ptr += (num-1);

  for (i=0; i<num ;i++)
  {
    v = (char)(value & 0x000000f);

    value >>= 4;

    if (v > 9)
      v += ('A'-10);
    else
      v += '0';

    *ptr-- = v;
  }

  return(ptr+num+1);
}
#endif

#ifndef RUN_INT_RAM
/*
+------------------------------------------------------------------------------
|  Function     :  ASCIIToHex
+------------------------------------------------------------------------------
|  Description  :  Convert ASCII string to hexadecimal value.
|
|  Parameters   :  *ptr      - string to be converted
|                  num       - number of characters
|
|  Return       :  value 
+------------------------------------------------------------------------------
*/
unsigned int ASCIIToHex (char *ptr, int num)
{
  unsigned int  i;
  unsigned int result = 0;
  unsigned int len;
  char  c;

  len = strlen(ptr);
  if ( len < (unsigned int)num )
    num = (int)len;

  ptr += (num-1);

  for (i=0; i < (unsigned int)num; i++)
  {
    if (isxdigit (*ptr) )
    {
      if (*ptr > '9')
        c = *ptr-- - 'A' + 10;
      else
        c = *ptr-- - '0';

      /*lint -e701 suppress Info -- shift left of signed quantity */
      result += (c << (i*4));
      /*lint +e701 */
    }
  }
  return result;
}
#endif

#ifndef RUN_FLASH
/*
+------------------------------------------------------------------------------
|  Function     :  InsertString
+------------------------------------------------------------------------------
|  Description  :  write a string into the buffer. If the string has less than 
|                  'num' characters, spaces are added.
|
|  Parameters   :  *string   - string to be written
|                  *ptr      - pointer to destination
|                  num       - number of characters to be filled
|
|  Return       :  pointer to next character
+------------------------------------------------------------------------------
*/
char *InsertString (char *string, char *ptr, int num)
{
  UBYTE  i;
  BYTE  end_detected = FALSE;

  for (i=0;i<num;i++)
  {
    if (end_detected)
      *ptr++ = ' ';
    else
    {
      if (string [i] == 0)
      {
        end_detected = TRUE;
        *ptr++ = ' ';
      }
      else
        *ptr++ = string [i];
    }
  }
  return(ptr);
}
#endif


#ifndef RUN_INT_RAM
/*
+------------------------------------------------------------------------------
|  Function     :  rm_path
+------------------------------------------------------------------------------
|  Description  :  remove path name from file name
|
|  Parameters   :  *file        - file name
|
|  Return       :  file name without path information
|                  
+------------------------------------------------------------------------------
*/
char *rm_path ( const char *file )
{
char *end;

  /*
   * to avoid crashes in case the passed parameter file is a pointer to
   * anywhere it is checked if file begins with a character that is allowed
   * at the beginning of file/path names (any alpanumeric character, '.', '/',
   * and '\')
   */
  if ( isalpha(*file) == 0 && *file != '.' && *file != '/' && *file != '\\' )
    return ((char*)"NO VALID FILENAME");

  end = (char*)file + strlen(file);

  while ((*end != 0x2f) && (*end != 0x5c) && (end >= (char*)file))
    end--;

  return end + 1;
}
#endif