84 lines
1.7 KiB
C
84 lines
1.7 KiB
C
/*
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* util.c - miscellaneous functions
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*
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* Copyright (C) 2008 Hugo Villeneuve <hugo@hugovil.com>
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*
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* Based on TI DaVinci Flash and Boot Utilities, original copyright follows:
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* Copyright 2008 Texas Instruments, Inc. <www.ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <stdint.h>
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#include <string.h>
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#include "common.h"
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#define MAXSTRLEN 256
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/* Endian swap */
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void
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endian_data(uint32_t *data)
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{
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uint32_t temp = *data;
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*data = ENDIAN_SWAP(temp);
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}
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void *
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memcpy(void *dest, const void *src, size_t n)
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{
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const uint8_t *src8 = src;
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uint8_t *dst8 = dest;
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for (; n > 0; n--) {
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*dst8 = *src8;
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dst8++;
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src8++;
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}
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return dest;
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}
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/* Get string length by finding null terminating char */
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size_t
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strlen(const char *s)
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{
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int i = 0;
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while ((s[i] != 0) && (i < MAXSTRLEN))
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i++;
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if (i == MAXSTRLEN)
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return -1;
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else
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return i;
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}
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/* Simple wait loop */
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void
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waitloop(int32_t loopcnt)
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{
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for (; loopcnt > 0; loopcnt--)
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asm(" NOP");
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}
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void
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sleep_ms(int ms)
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{
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for (; ms > 0; ms--)
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waitloop(20000);
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}
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