114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
/*
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* uuidutil.c
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*
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* DSP-BIOS Bridge driver support functions for TI OMAP processors.
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*
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* This file contains the implementation of UUID helper functions.
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*
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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*
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* This package is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* ----------------------------------- Host OS */
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#include <dspbridge/host_os.h>
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/* ----------------------------------- DSP/BIOS Bridge */
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#include <dspbridge/std.h>
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#include <dspbridge/dbdefs.h>
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/* ----------------------------------- Trace & Debug */
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#include <dspbridge/dbc.h>
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/* ----------------------------------- This */
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#include <dspbridge/uuidutil.h>
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/*
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* ======== uuid_uuid_to_string ========
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* Purpose:
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* Converts a struct dsp_uuid to a string.
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* Note: snprintf format specifier is:
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* %[flags] [width] [.precision] [{h | l | I64 | L}]type
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*/
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void uuid_uuid_to_string(IN struct dsp_uuid *uuid_obj, OUT char *sz_uuid,
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IN s32 size)
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{
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s32 i; /* return result from snprintf. */
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DBC_REQUIRE(uuid_obj && sz_uuid);
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i = snprintf(sz_uuid, size,
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"%.8X_%.4X_%.4X_%.2X%.2X_%.2X%.2X%.2X%.2X%.2X%.2X",
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uuid_obj->ul_data1, uuid_obj->us_data2, uuid_obj->us_data3,
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uuid_obj->uc_data4, uuid_obj->uc_data5,
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uuid_obj->uc_data6[0], uuid_obj->uc_data6[1],
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uuid_obj->uc_data6[2], uuid_obj->uc_data6[3],
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uuid_obj->uc_data6[4], uuid_obj->uc_data6[5]);
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DBC_ENSURE(i != -1);
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}
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static s32 uuid_hex_to_bin(char *buf, s32 len)
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{
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s32 i;
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s32 result = 0;
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int value;
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for (i = 0; i < len; i++) {
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value = hex_to_bin(*buf++);
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result *= 16;
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if (value > 0)
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result += value;
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}
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return result;
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}
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/*
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* ======== uuid_uuid_from_string ========
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* Purpose:
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* Converts a string to a struct dsp_uuid.
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*/
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void uuid_uuid_from_string(IN char *sz_uuid, OUT struct dsp_uuid *uuid_obj)
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{
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s32 j;
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uuid_obj->ul_data1 = uuid_hex_to_bin(sz_uuid, 8);
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sz_uuid += 8;
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/* Step over underscore */
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sz_uuid++;
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uuid_obj->us_data2 = (u16) uuid_hex_to_bin(sz_uuid, 4);
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sz_uuid += 4;
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/* Step over underscore */
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sz_uuid++;
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uuid_obj->us_data3 = (u16) uuid_hex_to_bin(sz_uuid, 4);
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sz_uuid += 4;
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/* Step over underscore */
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sz_uuid++;
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uuid_obj->uc_data4 = (u8) uuid_hex_to_bin(sz_uuid, 2);
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sz_uuid += 2;
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uuid_obj->uc_data5 = (u8) uuid_hex_to_bin(sz_uuid, 2);
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sz_uuid += 2;
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/* Step over underscore */
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sz_uuid++;
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for (j = 0; j < 6; j++) {
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uuid_obj->uc_data6[j] = (u8) uuid_hex_to_bin(sz_uuid, 2);
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sz_uuid += 2;
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}
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}
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