board_identity.c
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/****************************************************************************
*
* Copyright (C) 2017 PX4 Development Team. All rights reserved.
* Author: @author David Sidrane <david_s5@nscdg.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file board_identity.c
* Implementation of Non Arch specific Board identity API
*/
#include <px4_platform_common/px4_config.h>
#include <stdio.h>
#include <string.h>
#if defined(BOARD_OVERRIDE_UUID) || defined(BOARD_OVERRIDE_MFGUID) || defined(BOARD_OVERRIDE_PX4_GUID)
static const uint16_t soc_arch_id = PX4_SOC_ARCH_ID;
static const char board_uuid[17] = BOARD_OVERRIDE_UUID;
void board_get_uuid32(uuid_uint32_t uuid_words)
{
unsigned int len = strlen(board_uuid);
if (len > PX4_CPU_UUID_BYTE_LENGTH) {
len = PX4_CPU_UUID_BYTE_LENGTH;
}
uint8_t *bp = (uint8_t *) uuid_words;
for (unsigned int i = 0; i < len; i++) {
*bp++ = board_uuid[i];
}
for (unsigned int i = len; i < PX4_CPU_UUID_BYTE_LENGTH; i++) {
*bp++ = '0';
}
}
int board_get_uuid32_formated(char *format_buffer, int size,
const char *format,
const char *seperator)
{
uuid_uint32_t uuid;
board_get_uuid32(uuid);
int offset = 0;
int sep_size = seperator ? strlen(seperator) : 0;
for (unsigned i = 0; i < PX4_CPU_UUID_WORD32_LENGTH; i++) {
offset += snprintf(&format_buffer[offset], size - offset, format, uuid[i]);
if (sep_size && i < PX4_CPU_UUID_WORD32_LENGTH - 1) {
strcat(&format_buffer[offset], seperator);
offset += sep_size;
}
}
return 0;
}
int board_get_mfguid_formated(char *format_buffer, int size)
{
board_get_uuid32_formated(format_buffer, size, "%02x", NULL);
return strlen(format_buffer);
}
int board_get_px4_guid_formated(char *format_buffer, int size)
{
int offset = snprintf(format_buffer, size, "%04x", soc_arch_id);
size -= offset;
return board_get_mfguid_formated(&format_buffer[offset], size);
}
#endif