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/*
* uuidutil.c
*
* DSP-BIOS Bridge driver support functions for TI OMAP processors.
*
* This file contains the implementation of UUID helper functions.
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* ----------------------------------- Host OS */
#include <dspbridge/host_os.h>
/* ----------------------------------- DSP/BIOS Bridge */
#include <dspbridge/std.h>
#include <dspbridge/dbdefs.h>
/* ----------------------------------- Trace & Debug */
#include <dspbridge/dbc.h>
/* ----------------------------------- This */
#include <dspbridge/uuidutil.h>
/*
* ======== uuid_uuid_to_string ========
* Purpose:
* Converts a struct dsp_uuid to a string.
* Note: snprintf format specifier is:
* %[flags] [width] [.precision] [{h | l | I64 | L}]type
*/
void uuid_uuid_to_string(IN struct dsp_uuid *uuid_obj, OUT char *pszUuid,
IN s32 size)
{
s32 i; /* return result from snprintf. */
DBC_REQUIRE(uuid_obj && pszUuid);
i = snprintf(pszUuid, size,
"%.8X_%.4X_%.4X_%.2X%.2X_%.2X%.2X%.2X%.2X%.2X%.2X",
uuid_obj->ul_data1, uuid_obj->us_data2, uuid_obj->us_data3,
uuid_obj->uc_data4, uuid_obj->uc_data5,
uuid_obj->uc_data6[0], uuid_obj->uc_data6[1],
uuid_obj->uc_data6[2], uuid_obj->uc_data6[3],
uuid_obj->uc_data6[4], uuid_obj->uc_data6[5]);
DBC_ENSURE(i != -1);
}
/*
* ======== htoi ========
* Purpose:
* Converts a hex value to a decimal integer.
*/
static int htoi(char c)
{
switch (c) {
case '0':
return 0;
case '1':
return 1;
case '2':
return 2;
case '3':
return 3;
case '4':
return 4;
case '5':
return 5;
case '6':
return 6;
case '7':
return 7;
case '8':
return 8;
case '9':
return 9;
case 'A':
return 10;
case 'B':
return 11;
case 'C':
return 12;
case 'D':
return 13;
case 'E':
return 14;
case 'F':
return 15;
case 'a':
return 10;
case 'b':
return 11;
case 'c':
return 12;
case 'd':
return 13;
case 'e':
return 14;
case 'f':
return 15;
}
return 0;
}
/*
* ======== uuid_uuid_from_string ========
* Purpose:
* Converts a string to a struct dsp_uuid.
*/
void uuid_uuid_from_string(IN char *pszUuid, OUT struct dsp_uuid *uuid_obj)
{
char c;
s32 i, j;
s32 result;
char *temp = pszUuid;
result = 0;
for (i = 0; i < 8; i++) {
/* Get first character in string */
c = *temp;
/* Increase the results by new value */
result *= 16;
result += htoi(c);
/* Go to next character in string */
temp++;
}
uuid_obj->ul_data1 = result;
/* Step over underscore */
temp++;
result = 0;
for (i = 0; i < 4; i++) {
/* Get first character in string */
c = *temp;
/* Increase the results by new value */
result *= 16;
result += htoi(c);
/* Go to next character in string */
temp++;
}
uuid_obj->us_data2 = (u16) result;
/* Step over underscore */
temp++;
result = 0;
for (i = 0; i < 4; i++) {
/* Get first character in string */
c = *temp;
/* Increase the results by new value */
result *= 16;
result += htoi(c);
/* Go to next character in string */
temp++;
}
uuid_obj->us_data3 = (u16) result;
/* Step over underscore */
temp++;
result = 0;
for (i = 0; i < 2; i++) {
/* Get first character in string */
c = *temp;
/* Increase the results by new value */
result *= 16;
result += htoi(c);
/* Go to next character in string */
temp++;
}
uuid_obj->uc_data4 = (u8) result;
result = 0;
for (i = 0; i < 2; i++) {
/* Get first character in string */
c = *temp;
/* Increase the results by new value */
result *= 16;
result += htoi(c);
/* Go to next character in string */
temp++;
}
uuid_obj->uc_data5 = (u8) result;
/* Step over underscore */
temp++;
for (j = 0; j < 6; j++) {
result = 0;
for (i = 0; i < 2; i++) {
/* Get first character in string */
c = *temp;
/* Increase the results by new value */
result *= 16;
result += htoi(c);
/* Go to next character in string */
temp++;
}
uuid_obj->uc_data6[j] = (u8) result;
}
}
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