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53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
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stm32flash - Open Source ST STM32 flash program for *nix
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Copyright (C) 2010 Geoffrey McRae <geoff@spacevs.com>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <stdint.h>
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#include "utils.h"
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/* detect CPU endian */
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char cpu_le() {
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const uint32_t cpu_le_test = 0x12345678;
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return ((const unsigned char*)&cpu_le_test)[0] == 0x78;
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}
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uint32_t be_u32(const uint32_t v) {
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if (cpu_le())
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return ((v & 0xFF000000) >> 24) |
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((v & 0x00FF0000) >> 8) |
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((v & 0x0000FF00) << 8) |
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((v & 0x000000FF) << 24);
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return v;
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}
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uint32_t le_u32(const uint32_t v) {
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if (!cpu_le())
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return ((v & 0xFF000000) >> 24) |
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((v & 0x00FF0000) >> 8) |
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((v & 0x0000FF00) << 8) |
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((v & 0x000000FF) << 24);
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return v;
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}
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void printStatus(FILE *fd, int condition){
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if(condition)
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fprintf(fd, "Error!\n");
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else
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fprintf(fd, "OK\n");
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}
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